v0.35.3

Reviewed-on: #3

AGENTS.md

@@ -1,13 +1,13 @@
 # RustProxy source and documentation maintenance
 
-Current source version: **0.35.0**. The Cargo package and binary are named `rust-proxy`.
+Current source version: **0.35.3**. The Cargo package and binary are named `rust-proxy`.
 
-Before editing, read [README.md](README.md), [ROADMAP.md](ROADMAP.md), the relevant [documentation guide](docs/README.md) and the actual code and tests. Historical release experiments are not current specifications. Use the bundled `src/admin/openapi.json` for API routes and payloads; the source implementation is authoritative for runtime behavior.
+Before editing, read [README.md](README.md), the relevant [documentation guide](docs/README.md) and the actual code and tests. Historical release experiments are not current specifications. Use the bundled `src/admin/openapi.json` for API routes and payloads; the source implementation is authoritative for runtime behavior.
 
 ## Keep documentation in sync
 
 - Write product documentation in English. Prefer focused instructions: purpose, configuration, defaults, restrictions, verification and common failures. Keep change history technical but user/operator-facing, not a series of profiling notes.
-- Update the guide, [docs index](docs/README.md), [changelog](CHANGELOG.md), embedded Reader registry (`src/admin/documentation/documents.rs`) and API schema/tests together when functionality changes.
+- Update the guide, [feature list](docs/FEATURES.md), [docs index](docs/README.md), [changelog](CHANGELOG.md), embedded Reader registry (`src/admin/documentation/documents.rs`) and API schema/tests together when functionality changes.
 - Reader Markdown is compiled into the binary using `include_str!`. Renaming/deleting a guide without updating the registry breaks compilation. Avoid broken relative links.
 - Keep per-component optional defaults accurate (for example COLD off, Prometheus off, backend `tls_verify` off unless explicitly set, and optional Web Server `sendfile` off). Mark source-only or untested changes accordingly.
 - Maintain existing `langs/*.json` packs; `build.rs` discovers available locales. Do not add credentials, databases, real certificates, environment secrets or build artifacts to source archives.

CHANGELOG.md

@@ -1,15 +1,43 @@
 # Changelog
 
-Release history focused on **features, settings, default behavior, compatibility and fixes**. Changes to internal code structure and preliminary performance experiments are intentionally omitted. Historical descriptions reflect their respective releases; consult the current documentation for the settings available in 0.35.0.
+Release history focused on **features, settings, default behavior, compatibility and fixes**. Changes to internal code structure and preliminary performance experiments are intentionally omitted. Historical descriptions reflect their respective releases; consult the current documentation for the settings available in the latest release.
 
-## 0.35.0 — encoded-slash proxy compatibility and release cleanup (source candidate)
+## 0.35.3 — Overview layout fixes
+
+- **Standard Overview layout restored:** the quick-health tiles added in 0.35.2 (healthy backends, error share, requests rejected by limits, nearest certificate expiry) are now hidden by default and placed at the end of the Overview, so they no longer shift the standard block layout. Enable them in the layout editor when needed.
+- **Fixed:** the "Saved default" status next to the history sample count was always visible and looked like a fresh save notification. It now appears only for an unsaved temporary choice or briefly after **Remember choice**.
+- **Upgrade notes:** no configuration changes are required. If 0.35.2 already changed your Overview, use **Unlock layout → Reset layout** to restore the default arrangement, or hide the tiles in the layout editor.
+
+## 0.35.2 — memory fix, health check options and Overview tiles
+
+- **Memory use restored:** with a large HOT cache, 0.35.1 used about 25% more memory than 0.35.0 (for example 1.1–1.2 GiB instead of about 800 MiB with a 600 MiB cache). The default build is back to the 0.35.0 memory profile. The faster alternative allocator is available as an optional build feature for servers with spare RAM; the Performance guide explains the trade-off with measurements.
+- **Health check port:** active TCP and HTTP health checks can probe a different port than the one receiving traffic, for example a status port 8079 for a backend serving on port 80. It can be set for a whole Vhost or per backend; host, TLS and address restrictions stay the same.
+- **Expected response text:** HTTP health checks can require a text fragment in the response body, so a status page that answers 200 while reporting a degraded state marks the backend as down.
+- **New Overview tiles:** healthy backends (with the names of failing ones), error share, requests rejected by limits and the nearest certificate expiry.
+- **Certificate expiry metrics:** Prometheus now exports the expiry date and remaining days of every installed certificate, including manually uploaded ones, for alerting.
+- **Safari:** the Overview no longer jumps when you scroll near the Backends table while live values refresh.
+- **Fixed:** network interface traffic below 1 KiB/s is shown as a whole number of bytes instead of a long decimal.
+- **Upgrade notes:** no configuration changes are required. Existing Overview layouts receive the new tiles at the end; hide or move them in the layout editor.
+
+## 0.35.1 — performance, licensing and documentation
+
+- **Faster Web Server:** static files are read directly by the request instead of being handed to a background thread pool. Small and large files are served up to 1.8× faster with lower latency and CPU use.
+- **Faster reverse proxy and cache:** lighter request processing, header handling and traffic statistics collection. Proxied requests are about 3–7% faster and cache hits about 11% faster on the same hardware.
+- **Vhost charts:** the per-Vhost request-rate chart no longer shows a false spike right after the page opens or when two refreshes arrive at the same moment.
+- **Performance guide:** new documentation page with the benchmark method, a comparison with a similarly configured Nginx and production tuning advice.
+- **About window:** redesigned with the project description, copyright, a GNU AGPL v3.0-or-later license summary and links to the project website, source code, built-in documentation and the full license text.
+- **License:** RustProxy is published under the GNU Affero General Public License v3.0 or later. The license text is included in the built-in documentation.
+- **Documentation:** rewritten project overview with a complete feature list, panel screenshots and links to [rustproxy.linuxiarz.pl](https://rustproxy.linuxiarz.pl/). Container, API access, post-quantum TLS and integration notes were merged into the related guides. The built-in Reader now displays tables and bold text.
+- **Upgrade notes:** no configuration changes are required.
+
+## 0.35.0 — encoded-slash proxy compatibility and release cleanup
 
 - **Encoded slash compatibility:** `%2F` and `%2f` are accepted in request paths. RustProxy decodes them to `/` only for routing/security decisions and applies the same duplicate-slash normalization as literal `/`.
 - **Preserve-mode forwarding:** when a location does not rewrite the path, the original encoded request target is retained for the upstream, including query strings. Applications that use encoded slashes inside path parameters therefore receive the same target the client sent.
 - **Path hardening retained:** encoded `..` traversal after slash normalization, encoded backslash, `%`, `?`, `#`, `;`, controls, malformed percent escapes and invalid UTF-8 remain rejected.
 - **Release gate cleanup:** source/tests are adjusted for the current Rust/Clippy gate without weakening runtime security checks.
 
-## 0.34.16 — optional OIDC central login (source candidate)
+## 0.34.16 — optional OIDC central login
 
 - **Configuration size fix:** increased the total serialized configuration limit from 256 KiB to 2 MiB. The administration request limit, configuration file import, SQLite/history loading and NPM migration utility use the same expanded bound; the existing limits on Vhosts, backends and locations remain unchanged.
 - **Vhost → Authentication:** separates **Identity provider** (Tinyauth, Authelia, authentik, Pocket ID, custom OIDC, HTTP Basic) from **Integration method** (Forward Auth, OIDC, HTTP Basic). Pocket ID/custom support OIDC; Tinyauth/Authelia/authentik support Forward Auth or OIDC. Only one method can be active per Vhost. An optional `{ "authentication": { "provider": "authelia", "method": "oidc" } }` selector is validated against the existing provider settings. Omitted selectors retain legacy `*.enabled` behavior, including OIDC without an explicitly named vendor. Existing passwords, application callbacks, sessions and stored secrets retain their original keys and behavior.
@@ -18,7 +46,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - **Session policy:** HTTPS-only, HttpOnly, SameSite=Lax cookies; an independent random session secret per Vhost; one-hour default lifetime; callback at `/_rustproxy/oidc/callback` and local logout at `/_rustproxy/oidc/logout`. Invalid logins, expired cookies and unavailable issuer responses never authorize upstream access.
 - **Administration:** new OIDC fields in the Vhost panel, matching OpenAPI schema and English/Polish labels. All OIDC values are disabled by default. Source candidate: the Rust build and live OIDC compatibility checks have not been performed in the packaging environment.
 
-## 0.34.15 — optional Authelia and authentik forward auth (source candidate)
+## 0.34.15 — optional Authelia and authentik forward auth
 
 - **Provider-neutral refactor:** Extracted `auth_provider::Provider` with unified selected-provider dispatch, verified identity/cookie handling and one `error_auth_provider.html` template. Removed three Tinyauth-only HTML template files; 502/504 titles still identify Tinyauth, Authelia or authentik and failure category. Shared `forward_auth` transport continues to be reused without embedding vendor-specific branching in the request pipeline.
 - **Vhost → Authentication:** two additional, independently configurable choices: Authelia (`/api/authz/forward-auth`) and authentik (`/outpost.goauthentik.io/auth/nginx`), alongside unchanged Tinyauth and HTTP Basic Auth. Exactly one method can be active per Vhost; both new methods default off, with old configurations remaining compatible. Settings can be edited through the panel and vhosts configuration API.
@@ -26,14 +54,14 @@ Release history focused on **features, settings, default behavior, compatibility
 - **authentik:** supports forward auth (single application) with each protected host's reserved `/outpost.goauthentik.io` route automatically proxied to the configured outpost. The protected URL is passed to the outpost for SSO login; request cookies, identity headers and session-refresh `Set-Cookie` values are propagated with limits. Different parent domains can use one central authentik instance with distinct per-app proxy providers.
 - **Fail closed:** verifier transport/invalid-response errors return 502; timeout returns 504; unauthenticated/denied requests never reach application origins. Provider identity is never accepted from incoming client headers. Cache sharing is disabled for protected requests; fail-closed auth responses are kept out of custom-error interception.
 
-## 0.34.14 — Tinyauth gateway error pages (source candidate)
+## 0.34.14 — Tinyauth gateway error pages
 
 - **Tinyauth outage:** when RustProxy cannot reach the Tinyauth verifier (connect, DNS, TLS or transport error), it returns a built-in **502 Tinyauth connection error** HTML page rather than plain `502 Bad Gateway`. The page is local and self-contained; no failed authentication is bypassed and no backend address, certificate detail or transport error is revealed to the caller.
 - **Tinyauth compatibility patch:** the Nginx verifier now receives one consistent auth-request header set. RustProxy removes ForwardAuth module markers (`X-Forwarded-Host`, `X-Forwarded-URI`) while preserving the verified client IP and original request URL. This resolves the `conflicting auth module headers` rejection introduced in Tinyauth 5.2.0 without disabling anti-spoofing checks. Added regression tests for conflicting module headers and forged client identity. Use the internal `/api/auth/nginx` endpoint.
 - **Tinyauth timeout:** a verifier request that exceeds the configured deadline returns a distinct **504 Tinyauth timeout** page. Invalid verifier responses, unexpected HTTP statuses and oversized identity/response data return **502 Tinyauth verification error**. All retain no-store and the authenticated-request isolation marker, so Vhost/global error-page overrides do not mask Tinyauth's diagnostic category.
 
 
-## 0.34.13 — Global security, section-based configuration API and panel UX (source candidate)
+## 0.34.13 — Global security, section-based configuration API and panel UX
 
 - **GeoIP:** on-demand data refresh moved from the isolated `POST /api/geoip/update` to `POST /api/config/geoip/update`, colocated with the revisioned GeoIP settings. This action does not change the config revision; the UI and RO/RW token allowlist use the new URL. Section paths now consistently use kebab-case, including `not-found-hosts` (the JSON property remains `not_found_hosts`). Old action/section paths are removed.
 - **API:** all 23 supported configuration sections now have `GET /api/config/{section}` returning `{revision, section, value}` and `PUT /api/config/{section}` accepting `{expected_revision, value}`. PUT still returns the updated full `{revision, config}` envelope so clients can refresh all sections. Both methods use the same section registry. Unknown/removed sections are 404; stale writes return 409. Writes remain full section replacements, validated and committed atomically; there are no partial PATCH semantics.
@@ -45,7 +73,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - **Config/API:** additive `global_security` configuration object, backwards-compatible defaults, atomic `PUT /api/config/global-security` payload containing the complete nested `global_security` object (including `user_agent_blocking`). Country detection uses trusted client IP/GeoIP; global DNS ACL rules use the existing safe background resolver. English and Polish panel strings, OpenAPI and guides updated.
 - **Panel layout:** separated static cookie-cache advice from response-header toggles, added space between transform numeric controls and minification checkboxes, and moved certificate access-permission guidance next to the generated command preview. The **Copy commands** button remains hidden until commands are generated.
 
-## 0.34.12 — cache diagnostics and optional chart axes (source candidate)
+## 0.34.12 — cache diagnostics and optional chart axes
 
 - Origin-provided `Cache-Status`, `X-Cache`, `X-Cache-Hits`, `X-Cache-Reason`, `X-Cache-Resident-Age` and `X-Cache-Status` are retained on forwarded and cached responses; the HOT/COLD cache and conditional `304` refresh no longer erase these values from stored metadata. Cache-disabled and HIT-only display modes leave origin headers untouched.
 - `Cache-Status` follows RFC 9211's ordered member model: preserve upstream members and append the RustProxy member if enabled. RustProxy reports `hit; ttl=...` for a local cache hit, `fwd=miss`/`fwd=bypass` for forwarded requests, and `fwd=stale; fwd-status=304` when revalidation used a `304`. The existing fixed reason goes into `detail="..."`; transformation metadata applies to RustProxy's member only. No non-standard `backend=` parameter is generated.
@@ -68,7 +96,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - **Web Server:** generate document-root permission commands directly below its path, updating them for input, edits, resets and presets. Include parent traversal, read access to the served tree and default ACLs for new content without granting RustProxy write access. The permission walk does not follow child symlinks. PHP-FPM and systemd/MAC policies remain separately managed.
 - **API and documentation:** add a session-authenticated, CSRF-protected certificate inspection endpoint with matching OpenAPI/access regressions; update English/Polish panel text and filesystem guidance. General administration tokens and certificate-only tokens cannot use the inspection endpoint. Package and lockfile are aligned to **0.34.10**; native Cargo and protocol acceptance are still required for this source candidate.
 
-## 0.34.9 — experimental TLS post-quantum key exchange (source candidate)
+## 0.34.9 — experimental TLS post-quantum key exchange
 
 - **Dashboard source maintenance:** panel styles are organized into eight modules with consolidated responsive conditions and a deterministic build step. Login and the dashboard continue to load one fingerprinted stylesheet; rebuilding the binary applies changes. Source checks and browser regression tooling cover the module order and UI cascade. Native Rust validation remains required for this source candidate.
 - **CSS build preflight fix:** ship local `scripts`/`build` package markers so unrelated installed Python packages cannot hide `build.panel_css` or the application scripts. This fixes `dev.sh` startup/repair, the CSS audit and packaging imports on affected environments; generated styles remain unchanged.
@@ -91,7 +119,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - Only client hard-reload `Cache-Control: no-cache`, `max-age=0` and `Pragma: no-cache` are ignored when considering a **fresh HIT**, retaining `Age` and hit counters. Kept the original `Cache-Control: no-store` bypass, `only-if-cached` 504 on cache MISS and no background origin refresh on HIT, and `min-fresh`/`max-stale`/positive `max-age` freshness constraints (including explicit `max-stale=0` during grace). Original request headers, Vary, access/privacy rules and Web Server handling remain intact.
 - Source-level regression cases cover hard reload, fallback TTL, validator revalidation, no-store/private/Surrogate protections, zero-TTL stale-if-error, min-fresh/max-stale, and `only-if-cached` for proxy and Web Server. Native Rust compilation and runtime acceptance are required before a production release claim. This remains a Varnish-inspired policy subset, not a VCL clone.
 
-## 0.34.6 — Docker live logs, neutral Publish switch and Vhost Content-Type rules (source candidate)
+## 0.34.6 — Docker live logs, neutral Publish switch and Vhost Content-Type rules
 
 - **Security / ordinary Vhosts:** optional per-vhost list of up to 64 blocked request media types (`multipart/form-data`, `application/json`, `image/*`). Matches case-insensitively, ignores MIME parameters, returns 403 before any proxy, Web Server/PHP-FPM, Custom location or cache response. Missing `Content-Type` is permitted; malformed/ambiguous headers are refused while filtering is enabled. Docker editor is unchanged. Default off for existing and new Vhosts.
 - **Interface:** Vhosts → Security has a dedicated Content-Type subgroup with enable checkbox and multiline patterns. The Docker Publish toggle is smaller, unboxed and neutral with standard theme colors; instant save, rollback and live logs remain.
@@ -100,7 +128,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - **Open app URL:** use the selected listener's actual `binding.tls` and `binding.address` so HTTPS and nonstandard public ports are reflected in generated app links.
 - **Release:** Cargo package and lockfile, embedded OpenAPI version, Polish/English UI hints and documentation aligned to 0.34.6. This is a source-only release candidate requiring native compilation and integration testing before deployment. Blocking `Content-Type` does not replace security updates for PHP or the application.
 
-## 0.34.5 — Administration UX improvements (source candidate)
+## 0.34.5 — Administration UX improvements
 
 - **Docker vhosts traffic view:** added the ordinary Vhost status, cumulative requests/active/errors, EWMA latency, traffic/s and lifetime-rate chart in a collapsed-by-default disclosure below each published Docker vhost's configuration editor. One toolbar button expands/collapses all active publications; individual disclosure state survives live refreshes. Values use generated Vhost counters from the existing status stream. The browser chart begins collecting when the vhost is observed and resets on sign-out; backend/configuration behavior is unchanged.
 
@@ -123,7 +151,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - **Corner-style consistency:** additional Vhost dependent-field groups, cache/legend and metric-info controls, selected admin cards and the self-contained authenticated documentation page follow the saved Square/Subtle/Rounded/Extra corner preference. Circular status indicators/spinners remain circular by design; Original retains its legacy styling.
 - Updated English and Polish labels, documentation and UI regression checks. This is a UI-only release; it does not change backend execution or configuration semantics. Native Rust builds and target-system acceptance remain required.
 
-## 0.34.4 — Multi-profile ACLs, certificate override and mobile Docker details (source candidate)
+## 0.34.4 — Multi-profile ACLs, certificate override and mobile Docker details
 
 - ACL profile picker corners (dropdown, counter, rule cards, policy badges, selected chips and remove buttons) follow the dashboard corner-style setting (Square, Subtle, Rounded, Extra rounded); Original keeps its prior shape. ACL selection and rule evaluation are unchanged.
 - Docker agent details now wrap certificate SHA-256 fingerprints on narrow screens.
@@ -133,7 +161,7 @@ Release history focused on **features, settings, default behavior, compatibility
 - Docker publication editor shows the certificate/domain mismatch consent immediately below **Backend host IP**, with a small vertical gap.
 - The source release needs native Rust compilation and target-system acceptance tests before production use.
 
-## 0.34.3 — QUIC socket buffering, live HTTP/3 settings and cache outcome mix (source candidate)
+## 0.34.3 — QUIC socket buffering, live HTTP/3 settings and cache outcome mix
 
 - QUIC now opens the UDP listener socket with per-listener receive/send buffer targets (4 MiB each by default; `udp_receive_buffer_bytes`, `udp_send_buffer_bytes`; `0` uses OS defaults). Reports the effective buffer sizes and warns if kernel limits clamp them. Linux `SO_RCVBUF` / `SO_SNDBUF` accounting is accommodated, so observed `ss` values correspond to the configured effective target when permitted. UDP buffer modifications require restart, not silent hot application. Existing configs without these fields load the new defaults.
 - HTTP/3 `Alt-Svc` follows newly saved listener lifetime immediately on H1/H2 TLS responses for an already-bound H3 socket; disabling H3 publishes `Alt-Svc: clear`. New QUIC handshakes use saved stream/idle limits and reduced connection caps. Listener binding/TLS/H1-H2 changes, a new/disabled UDP listener or expanding startup capacity still need restart; UI restart indicator reflects this.

Cargo.lock

@@ -1330,6 +1330,15 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a45a52f43e1c16f667ccfe4dd8c85b7f7c204fd5e3bf46c5b0db9a5c3c0b8e9"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "libproc"
 version = "0.14.11"
@@ -1427,6 +1436,15 @@ dependencies = [
  "windows",
 ]
 
+[[package]]
+name = "mimalloc"
+version = "0.1.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d4139bb28d14ad1facf21d5eb8825051b326e172d216b39f6d31df53cc97862"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -1925,7 +1943,7 @@ dependencies = [
 
 [[package]]
 name = "rust-proxy"
-version = "0.35.0"
+version = "0.35.3"
 dependencies = [
  "anyhow",
  "arc-swap",
@@ -1949,6 +1967,7 @@ dependencies = [
  "ipnet",
  "libc",
  "metrics-process",
+ "mimalloc",
  "quinn",
  "rand 0.10.3",
  "rcgen",

Cargo.toml

@@ -1,9 +1,13 @@
 [package]
 name = "rust-proxy"
-version = "0.35.0"
+version = "0.35.3"
 edition = "2021"
 rust-version = "1.99.1"
 description = "RustProxy - independent reverse proxy with local administration"
+authors = ["Mateusz Gruszczyński"]
+license = "AGPL-3.0-or-later"
+homepage = "https://rustproxy.linuxiarz.pl/"
+repository = "https://git.linuxiarz.pl/gru/RustProxy"
 publish = false
 
 [dependencies]
@@ -13,6 +17,7 @@ ipnet = "2.11"
 rpassword = "7.4"
 zeroize = "1.8"
 anyhow = "1.0"
+mimalloc = { version = "0.1", default-features = false, optional = true }
 libc = "0.2"
 arc-swap = "1.7"
 axum = { version = "0.8.9", default-features = false, features = ["http1", "http2", "json", "query", "tokio", "ws"] }
@@ -67,6 +72,10 @@ systemstat = "=0.2.7"
 # Swagger assets are prepared by build.rs and embedded behind the admin guard.
 # No adapter build script, implicit version fallback or Cargo-config dependency.
 
+[features]
+default = []
+mimalloc = ["dep:mimalloc"]
+
 [build-dependencies]
 serde_json = "1.0"
 

README.md

@@ -1,150 +1,75 @@
-# RustProxy 0.35.0
+# RustProxy
 
-RustProxy combines a reverse proxy, static/PHP web server, certificate management and traffic monitoring in one service with a browser administration panel. It supports several domains and backends without requiring a separate proxy configuration language.
+**RustProxy** is a reverse proxy, web server, certificate manager and traffic monitor in a single service, managed from a built-in browser panel. It publishes many domains and backends without a separate configuration language: every setting is validated before it is applied and can be changed live from the panel or the API.
 
-## Changes in 0.35.0
+- Website and packages: [rustproxy.linuxiarz.pl](https://rustproxy.linuxiarz.pl/)
+- Source code: [git.linuxiarz.pl/gru/RustProxy](https://git.linuxiarz.pl/gru/RustProxy)
+- Documentation: [docs/README.md](docs/README.md) (also built into the panel at `/docs`)
+- License: [GNU AGPL v3.0 or later](LICENSE)
 
-- Accept encoded path separators `%2F` / `%2f` for reverse-proxy requests. Routing, ACLs and other security policy evaluate the normalized path with real `/` separators, while Preserve-mode forwarding keeps the client request target encoded for the upstream.
-- Keep path hardening fail-closed: encoded backslash, percent, query/fragment delimiters, semicolon, control bytes, malformed escapes, invalid UTF-8 and dot-segment traversal remain rejected.
-- Refresh release-gate compatibility with the supported Rust/Clippy toolchain and retain the complete test suite as a required release check.
+![RustProxy Overview dashboard](docs/images/overview.png)
 
-## Changes in 0.34.16
+## Highlights
 
-- Separated **identity provider** from **integration method** in Vhost Authentication: Tinyauth, Authelia or authentik can use Forward Auth or OIDC; Pocket ID and compatible custom providers use OIDC. HTTP Basic remains its own method. The `authentication` field stores the pair, with legacy Vhost JSON still supported.
-- Added optional OIDC Authorization Code + PKCE for a central HTTPS identity provider used by applications on unrelated domains.
-- OIDC uses discovery, optional internal IdP routing, JWKS signature validation, nonce/state checks, encrypted host-only sessions and an application-host callback at `/_rustproxy/oidc/callback`. Other authentication integrations are unchanged.
-- This is a source candidate; Rust build and real IdP integration tests are required before production deployment. An IdP also needs an OIDC client registered with the exact HTTPS application callback; ordinary Forward Auth configuration is not enough.
-
-## Changes in 0.34.15
-
-- Added **Authelia** and **authentik** as separate, disabled-by-default Vhost authentication methods alongside existing Tinyauth and HTTP Basic Auth. Each Vhost selects at most one provider; older Vhost JSON imports keep their settings.
-- Authelia integration uses `/api/authz/forward-auth` and validates login redirects against the configured public portal. authentik integration uses `/outpost.goauthentik.io/auth/nginx`, redirects unauthenticated clients to the protected hostname's outpost and forwards that reserved path to the configured outpost server.
-- Authentication checks fail closed on provider outages, malformed responses and timeouts. Verifier-returned identity headers are selected/limited, client-forged identity headers are stripped, and successful sessions remain private/no-store. Protected application domains may differ when each provider is configured appropriately.
-
-## Changes in 0.34.14
-
-- Preserves Tinyauth Nginx auth-request compatibility with old and new versions supporting `/api/auth/nginx`.
-- Uses a separate, locally embedded **Tinyauth connection error (502)**, **Tinyauth timeout (504)** or **Tinyauth verification error (502)** page for failed authorization checks, without allowing access to protected origins. The existing built-in **Bad Gateway (502)** page and all standard HTTP error templates stay unchanged. No extra configuration is needed; HTTP status codes retain their existing meaning (502 for verifier errors, 504 for verifier timeouts).
-
-## Main capabilities
-
-| Area | Available features |
+| Area | Capabilities |
 |---|---|
-| Reverse proxy | HTTP/HTTPS origins, HTTP/1.1 and HTTP/2 upstream modes, health checks, load balancing, connection reuse, WebSockets, path-based routing, retries and error fallbacks |
-| Frontends | HTTP, HTTPS, HTTP/2, optional HTTP/3 (QUIC), named listeners, domain and wildcard routing, redirects, TLS certificates |
-| Web Server | Static content, downloads, directory/index policy, rewrite and `try_files`, selected `.htaccess` rules, optional PHP-FPM, application presets |
-| Access | IP/CIDR and DNS/DDNS rules, country restrictions, reusable ACLs, rate limits, method rules, Basic Auth, Tinyauth/Authelia/authentik via Forward Auth, and optional OIDC with Authelia/authentik/Pocket ID/compatible providers, security headers |
-| Delivery | Optional shared HOT/RAM and COLD/disk cache, cache invalidation, compression, response transformations, static-file optimizations |
-| Integrations | Docker discovery via separate agents, TCP/UDP Streams, ACME certificate providers, Prometheus, Grafana/Nagios examples and administration API |
-| Operations | Dashboard presets, traffic analytics, live/stored logs, configuration history, encrypted backups and certificate reloads |
+| Reverse proxy | HTTP/HTTPS backends, HTTP/1.1, HTTP/2 and H2C upstreams, load balancing, health checks, connection reuse, WebSockets, custom locations, retries and error fallbacks |
+| Frontends | HTTP, HTTPS, HTTP/2, HTTP/3 (QUIC), named listeners, exact and wildcard domains, redirects, optional post-quantum TLS key exchange |
+| Web Server | Static sites and downloads, `try_files`, rewrites, `.htaccess` subset, byte ranges, precompressed files, PHP-FPM |
+| Certificates | PEM import, ACME HTTP-01 and DNS-01 (Cloudflare, OVH, RFC 2136), automatic renewal, external Certbot files, hot reload |
+| Access | IP/CIDR, DNS/DDNS and country rules, ACL profiles, rate limits, method and Content-Type policies, Basic Auth, Tinyauth, Authelia, authentik, OIDC |
+| Delivery | Shared memory and disk cache, `Cache-Status`, purge/ban, gzip/Brotli/Zstandard compression, asset minification |
+| Monitoring | Live dashboard, per-Vhost statistics, live and stored logs, Prometheus exporter, JSON metrics, Grafana and Nagios |
+| Operations | Configuration history and restore, encrypted backups, Docker discovery, Nginx Proxy Manager import, REST API with OpenAPI |
 
-Features and default settings vary by component; configure only the capabilities you need. The [documentation index](docs/README.md) covers each workflow, including prerequisites, security boundaries, troubleshooting and API access.
-
-## 0.34.12 — upstream cache diagnostics and RFC 9211
-
-- **Web Admin** cleanups and 
-- **API** refactor
-
-## 0.34.12 — upstream cache diagnostics and RFC 9211
-
-- **Cache and upstream headers:** retain origin-supplied `Cache-Status` and `X-Cache*` diagnostics on BYPASS, MISS and HOT/COLD HIT; no longer silently strip them when cache diagnostics are disabled or limited to HIT. Origin `Cache-Status` members remain in order; an enabled RustProxy `Cache-Status` member is appended with its own `hit`, `ttl`, `fwd` and `detail` parameters rather than overwriting earlier members. On collisions with the non-standard legacy `X-Cache*` headers, RustProxy keeps its existing names and preserves upstream values as `X-Upstream-Cache*`. These options affect only RustProxy's own diagnostic output. See [Cache](docs/CACHE.md) for examples and RFC 9211 semantics.
-- **Appearance:** **Settings → Appearance → Charts → Show X/Y scales** adds optional, off-by-default numeric chart scales to live SVG plots. The existing lines, colors and dynamic Y limits (including adaptive Vhost/Docker rate scales) are unchanged; Y uses the exact plotted range and X shows sample numbers, not inferred minutes. The setting is account-scoped and reversible. See [Dashboard](docs/DASHBOARD.md).
-
-## 0.34.11 — adaptive live request-rate charts
-
-- **Vhosts and Docker Vhosts:** the lifetime request-rate sparkline now rescales with recent traffic. Isolated extreme peaks no longer flatten ordinary request activity; sustained traffic growth expands the scale and it shrinks again as traffic drops. Samples above the visible range are capped at the top of the plot, while the text legend retains the real recorded maximum. Hover the value to see the current scale range. Existing statistics collection, request counters and metrics APIs are unchanged. See [Vhosts](docs/VHOSTS.md) and [Docker discovery](docs/DOCKER_DISCOVERY.md).
-
-## 0.34.10 — filesystem permissions and certificate names
-
-- **Certificates → Existing files:** permission commands are generated from the entered external certificate/key paths and displayed **below both path fields**. The command block keeps the previous panel styling, with account selection and guidance under **Options and help**. Commands grant directory traversal and read access to the resolved files for the `rustproxy` service account. After the public certificate can be read, its DNS SAN names automatically fill the legacy SNI field; manual edits are preserved, and **Read names from certificate** retries after permissions are corrected. See [Certificates](docs/ACME_PROVIDERS.md).
-- **Web Server:** the document-root field now has generated permission commands directly below it, updated as the path changes. The helper covers parent traversal and read/traversal of the served tree. Review and run the commands as an administrator on the server; the panel does not execute them. See [Web Server](docs/WEB_SERVER.md).
-
-## 0.34.9 — experimental PQC (source candidate)
-
-- **Settings → TLS policy:** opt-in experimental TLS 1.3 hybrid post-quantum key exchange (X25519MLKEM768), using aws-lc-rs only for enabled frontend TLS policies. Classic key-exchange groups remain enabled for client compatibility. Off by default; cipher-suite choices remain separate. HTTP/3 and per-vhost TLS overrides follow the selected policy. Details and rollback: [TLS PQC guide](docs/TLS_POST_QUANTUM.md) (also in the authenticated panel Reader).
-
-## 0.34.8
-
-- **Docker vhosts:** automatic hostname uses the container name, without image or port suffix; prior auto-generated names are updated while custom names and aliases are preserved. Docker Agent **1.0.1**.
-
-## 0.34.7
-
-- **Settings → Cache:** Varnish-inspired cache policy (on by default) ignores hard-reload `no-cache` / `max-age=0` / `Pragma: no-cache` for fresh HITs, without disabling `only-if-cached`, `no-store`, `max-stale` or `min-fresh`. Public origin `no-cache` responses can use an explicit fallback TTL; other responses retain revalidation, `stale-if-error`, Surrogate-Control vetoes and privacy protections. The behavior is explained by an **i** icon next to the setting. See [Cache](docs/CACHE.md) for examples and safety implications.
-
-## 0.34.6
-
-- **Docker vhosts:** **Live logs** beside **Open app** opens the existing HTTP access-log viewer, filtered to the selected generated Docker vhost and its aliases. These are RustProxy request logs, not container stdout/stderr. Open app honors HTTPS and nonstandard listener ports.
-- **Publish switch:** a compact neutral on/off control in the existing panel theme, without a pill container or green fill. It saves immediately and rolls back on failure.
-- **Ordinary Vhosts → Security:** optional request **Content-Type** denylist with exact MIME types and `type/*` wildcards. Matching requests receive **403 before PHP-FPM, Web Server, reverse proxy, custom locations or cache**. Docker vhost configuration remains unchanged.
-
-## 0.34.5
-
-- Administration UX refinements: clearer grouping for Web Server delivery and PHP-FPM controls, Stream backend and health-check settings, and Redirect/404 host identity versus frontend certificate options.
-- Stream backend probe settings are hidden while health checks are off, and disabled Web Server fields now have a consistent muted appearance. Both UI languages are supported.
-- UX follow-up: Vhost transform/cache overrides now place checkboxes directly above their textareas; inline Vhost IP rules live with ACL profiles under Security. Web Server preset hardening controls and refresh interval grids have clearer alignment, and System information keeps the statistics source without the separate process block.
-- More controls (including the authenticated documentation/Swagger page) follow the saved corner style. Configuration keys, API payloads and proxy behavior are unchanged.
-- Published Docker vhosts now expose collapsed, Vhost-style traffic statistics and a single toolbar button to expand or collapse the statistics for all published Docker services.
-
-## 0.34.4
-
-- Docker vhosts: SHA-256 certificate fingerprints wrap correctly in mobile agent details.
-- Ordinary and Docker vhosts support up to eight ACL profiles with deterministic explicit deny priority and merged explicit allows, while keeping standalone ACL layers restrictive. Existing singular ACL configuration remains supported.
-- Certificate-to-domain mismatch can be explicitly accepted per ordinary or Docker vhost (with a warning/confirmation); normal validation stays enforced without this override, and TLS clients may still reject the certificate.
-- Editor layout: SSL certificates and TLS settings are separate; Vhost traffic/security, WebSockets, balancing and location access options are grouped by purpose. Docker certificate overrides appear under the backend IP choice, and common controls respect the dashboard corner style.
-
-## 0.34.3
-
-- HTTP/3 now explicitly requests **4 MiB effective UDP receive and send buffers** per QUIC listener (configurable as `udp_receive_buffer_bytes` and `udp_send_buffer_bytes` in Settings > HTTP/3). On Linux the kernel can cap them using `net.core.rmem_max` / `net.core.wmem_max`; RustProxy logs the effective values and a warning if the target is not met. Setting either value to `0` leaves the OS default. Changing UDP buffers requires service restart.
-- HTTP/3 Alt-Svc response headers follow saved policy immediately; turning off an already-bound H3 service emits `Alt-Svc: clear`. New QUIC handshakes pick up modified stream/idle limits without socket rebinding. Increasing the connection cap beyond the startup bound or changing the UDP endpoint still requires restart. QUIC bulk-transfer diagnostic snapshots are available at debug log level.
-- The Overview has an **optional, hidden-by-default cumulative cache-outcome bar** showing HIT, MISS, BYPASS and OTHER request counts and percentages **since service start**. Enable it in the dashboard layout editor when needed. This complements the existing cumulative HIT/MISS donut and separate recent cache trend chart. OTHER denotes HTTP requests without a cache decision. Percentages use all HTTP requests, unlike the HIT/MISS donut. The upper-right counter displays only the lifetime HTTP request count; its full meaning is available on hover or to assistive technology.
-
-## 0.34.2
-
-- Added read-only pull-based JSON monitoring at `/api/metrics/json` (admin session or General API token) and at the enabled Prometheus exporter path with `.json` suffix (same exporter bearer/CIDR policy). Includes Overview-style metrics and all existing Prometheus sample families without SSE. Compact precomputed dashboard metrics are available at `/api/metrics/summary`, under `summary` in the full JSON, and at the exporter path with `.summary.json` suffix. This includes readiness counts, RPS, transfer/second and system/cache percentages.
-- **Settings → Manual config** displays the active configuration storage mode, its path and the SQLite history location for file-backed mode.
-- Documented optional systemd `--config /etc/rustproxy/config.json` deployment with file/directory ACLs, write access for atomic panel saves and reload instructions.
-- Public Web Server errors reuse embedded application-style HTML templates (or a matching fallback for statuses without a dedicated page). Proxy-generated non-template errors use standard HTTP status text; neither leaks internal `RustProxy:` diagnostics. Origin error bodies and custom error pages remain configurable.
-
-## 0.34.1
-
-- An explicit `--config /absolute/path/config.json` (or `RUST_PROXY_CONFIG`) makes an existing JSON document the active configuration source. Panel saves and configuration-history restores write back to that file, with SQLite retaining revision/audit data. Out-of-band file changes require an explicit reload; concurrent edits are rejected.
-- `rust-proxy reload` / `rust-proxy config reload` and the example systemd `ExecReload` perform configuration and certificate refresh without terminating the service; listener changes can still require a restart.
-- Panel-managed, one-time-displayed administration API Bearer tokens with `ro`/`rw` permissions and mandatory source-IP/CIDR restrictions. Browser login remains available; certificate-only tokens are separate.
-- Bulk assignment of Vhosts to a certificate; a single **Save and lock** control for unlocked Overview layout.
-- Panel-managed Prometheus token issuance, rotation and revocation with one-time display. Existing environment-token configuration remains a compatibility fallback until a generated credential or revocation record replaces it.
+The complete list is in [Feature list](docs/FEATURES.md); a visual tour is in [Screenshots](docs/SCREENSHOTS.md).
 
 ## Installation
 
-Use the maintained packages where available:
+| Platform | Method |
+|---|---|
+| Debian, Ubuntu, RHEL, Rocky, Alma, Fedora | DEB/RPM packages from [rustproxy.linuxiarz.pl](https://rustproxy.linuxiarz.pl/) |
+| OPNsense | Plugin from [rustproxy-opn.linuxiarz.pl](https://rustproxy-opn.linuxiarz.pl/) |
+| Debian 13+ from source | `install-debian13.sh` bootstrap script |
+| Any Linux with systemd | `cargo build --release`, then `install.sh` |
+| Docker / OCI | Included `Dockerfile` |
 
-- Linux DEB/RPM: https://rustproxy.linuxiarz.pl/
-- OPNsense: https://rustproxy-opn.linuxiarz.pl/
-- Docker hosts (optional agent, Linux DEB/RPM): install `rustproxy-docker-agent` independently; see [Docker discovery](docs/DOCKER_DISCOVERY.md).
+Quick start from source on Debian 13+:
 
-For Debian 13+ source installation, manual compilation, managed updates or Docker, see [Installation and updates](docs/INSTALL.md).
+```bash
+wget -qO- https://git.linuxiarz.pl/gru/RustProxy/raw/branch/master/install-debian13.sh | bash
+sudo -u rustproxy /opt/rustproxy/current/rust-proxy --data-dir /var/lib/rustproxy admin setup-token
+ssh -L 9090:127.0.0.1:9090 operator@server   # then open http://127.0.0.1:9090
+```
 
-Typical managed Linux defaults: HTTP on `:80`, HTTPS on `:443`, local administration at `http://127.0.0.1:9090`, private data in `/var/lib/rustproxy`. The initial public certificate is self-signed. **There is no default administrator password.** Initialize administration locally and assign trusted certificates before public use.
+Default managed installation: HTTP on `:80`, HTTPS on `:443` with a self-signed certificate, administration on `http://127.0.0.1:9090`, data in `/var/lib/rustproxy`. There is **no default administrator password**; the first account is created with a one-time setup token. Details: [Installation and updates](docs/INSTALL.md).
 
-Updated Linux service templates allow **read-only** access to static website
-roots under `/home`, `/var/www` and `/srv` using Unix groups or ACLs without
-per-directory systemd overrides. The service still runs unprivileged with
-`ProtectSystem=strict`; external certificate paths have stricter trust/owner
-checks. See [Linux filesystem access](docs/INSTALL.md#linux-debrpm-read-only-access-to-external-paths).
+## First steps
 
-## First configuration
+1. Create the administrator and sign in.
+2. Review **Settings → Listeners** and assign a trusted certificate (**Certificates**).
+3. Add a **Vhost** with your domain and a backend URL, or a **Web Service** for static files.
+4. Check health, access rules and routing on **Overview** and **Logs**.
+5. Enable cache, compression, authentication or monitoring when needed.
 
-1. Install and start the service, then initialize the administrator using the local CLI.
-2. Open the panel and review **Settings → Listeners**, administration access and certificates.
-3. Create a **Vhost** with a domain name and a reachable HTTP backend or **Web Service**.
-4. Confirm frontend TLS, backend health, access permissions and routing.
-5. Enable additional cache, compression, Docker or monitoring functions as needed; inspect **Overview**, **Logs** and **Cache** for results.
+## Performance
 
-## Guides
+RustProxy streams requests and responses asynchronously on Tokio and Hyper. On one CPU core it serves roughly 15,000 proxied and 26,000 static requests per second with full statistics and logging enabled, and it is faster than a comparably configured Nginx for large proxied responses. Benchmark method, the full comparison and tuning advice are in [Performance](docs/PERFORMANCE.md).
 
-- [Installation](docs/INSTALL.md) · [Settings](docs/CONFIGURATION.md) · [Vhosts](docs/VHOSTS.md) · [Web Server](docs/WEB_SERVER.md) · [PHP-FPM](docs/PHP_FPM.md)
-- [Certificates](docs/ACME_PROVIDERS.md) · [Cache](docs/CACHE.md) · [Response delivery](docs/RESPONSE_DELIVERY.md) · [Docker discovery](docs/DOCKER_DISCOVERY.md) · [Monitoring](docs/MONITORING.md)
-- [Security](docs/SECURITY.md) · [API](docs/API.md) · [Troubleshooting](docs/TROUBLESHOOTING.md)
-- [Changelog](CHANGELOG.md) · [Roadmap](ROADMAP.md)
+## Building
 
-The authenticated **`/docs`** page includes the guides and a separate interactive **OpenAPI/Swagger** tab.
+```bash
+./dev.sh check     # cargo check for all targets
+./dev.sh test      # complete test suite
+./dev.sh release   # optimized binary in target/release/rust-proxy
+```
 
+Rust stable (see `rust-version` in `Cargo.toml`), a C compiler and Python 3.10+ are required. The build embeds the panel, the documentation and Swagger UI, so the binary has no runtime web dependencies.
+
+Optional memory allocator: `cargo build --release --features mimalloc` handles heavy HOT cache turnover faster but uses about 25% more memory; see [Performance](docs/PERFORMANCE.md#memory-allocator).
+
+## License
+
+Copyright © 2026 Mateusz Gruszczyński.
+
+RustProxy is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. It is distributed in the hope that it will be useful, but **without any warranty**. If you run a modified version as a network service, you must offer its users the corresponding source code. See [LICENSE](LICENSE) for the full text.

ROADMAP.md

@@ -1,11 +0,0 @@
-# RustProxy roadmap
-
-## Current release validation
-
-- Keep the 0.35.0 source tree reproducible and keep documentation, OpenAPI and tests in sync with runtime behavior.
-- Complete the Rust build, test and Clippy gates with the supported toolchain before production release.
-- Validate the 0.35.0 OIDC flow against real supported identity providers before production deployment.
-
-## Future work
-
-No additional feature work is committed in this source candidate. Add future items here only when their scope and verification requirements are defined.

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 e3646c044604bbc169aeba549d973d37b8ac52f88bbab4a0ef74c6ea69681eaa  src/geoip/mmdb.rs
@@ -358,20 +370,20 @@ cfc75486e69c310fa6e7bf0448ed39a20cdad9dd8afe75e01592fc7c76a380db  src/geoip/test
 8c72a10f07f82e2c0864551a3c95e261129c23cf6072f902d063564b6ea6770f  src/geoip/update_tests.rs
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@@ -388,50 +400,50 @@ fa2fc6c6987a8356a9da92cade10db62426d8863e9cef3c0d4324c45780c5b33  src/not_found/
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@@ -451,17 +463,17 @@ bab3044f4ad8957b65476a0c307bb8a364825b91d2100233b7bd6efa52e771be  src/runtime/ty
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@@ -479,15 +491,15 @@ e0676801259fb09a73825d959b89630bfa0b6f1fd1efd3006af29f60537a2fdf  src/system_sta
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@@ -521,7 +533,7 @@ fc8af7342a3b147921e9040116af5dfe680b3df910db2416ada18198bbeea7df  src/vhost/redi
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@@ -532,11 +544,11 @@ a484113f2c1fea4e98a437acd8a28be6490d7e612f160a8728ceeaadd363f8ee  src/web_server
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+b38a1c9e648e3606a534ebdf74f6315863a326c6de1ca8edc433abe9c1fed7b4  src/web_server/response/file.rs
+4733bb1824dd0a12b8804fb8d00791c3f9fda4c09b41503d5d8079d9607df058  src/web_server/response/file_body/mod.rs
 e5f5fbe702f66bfcbcbc1d1f3cd3d89bdbb929bb86aed94868a2a06a4b9e59e3  src/web_server/response/file_body/tests.rs
-c63a5935bf8e101f1813e029dd62da7d073eb598453ee98aafe9ffa6f85157c2  src/web_server/response/headers.rs
-da7c69cd4b26289170d6d89ae3a6d41488fdca3f184cd8f63a160217fa26e49d  src/web_server/routing.rs
+7da903c1a69be0ae6b85772b3208c518679efa8ed9d3e98adb694483518156b6  src/web_server/response/headers.rs
+2665d4eac9a6430d68224874784cb65d9b9d424353af77735caf044401d08cb4  src/web_server/routing.rs
 9e584eb4455a18641c2c89f9e9725745c93f32877abf0f0f2fbea9e3d5ef38c3  src/web_server/security.rs
 b791762b4ab7a43c3be19df84e523faf3dfb4df055f66d02178f93edb60d2204  src/web_server/serve.rs
 714418c86ab241020a561fcf662a8fe324a6a70cc2fd3a313c56d7939c14b9e8  src/web_server/tests.rs
@@ -547,5 +559,5 @@ eca68a07c2b1e45fdb8f512294f5a432db3ae5a6aec8fb200b47f155cd9a31d6  tools/README.m
 d1418f8e574a7390fd45a2aa879bdf5720b773162d65e295ab0350506aa5220a  tools/dev/mock_auth.py
 2d3ff92300b09ce9cecbbaaa9309b4d33160fa4b2291c9952b784e8cfb599ab5  tools/dev/mock_server.py
 c711154a9df425a56607bd88f03815ffb408213a31a2b66ed1c1c9a6301a2fc6  tools/legacy/backup.py
-89d2b4e60a2f4cb93e8943b74b1b5ca84374b01fa74ea07bec07bdff315ac0e9  update.sh
+5421082e24f3794356331157e30b428f3221a0d74c0b5d060bd4d3989e0bcf3a  update.sh
 56c702111022e1ca2c8f6b72c635c749b05936ffe6387bdb0a202691614cbc96  upgrade.sh

build.rs

@@ -70,9 +70,17 @@ fn swagger_assets(
         _ => vec!["python3".into(), "python".into()],
     };
     for interpreter in interpreters {
-        match Command::new(&interpreter).arg(&helper).arg("--out-dir").arg(out).status() {
+        match Command::new(&interpreter)
+            .arg(&helper)
+            .arg("--out-dir")
+            .arg(out)
+            .status()
+        {
             Ok(status) if status.success() => return Ok(()),
-            Ok(_) => return Err("Swagger UI asset preparation failed; see the diagnostic above and docs/API_ACCESS.md".into()),
+            Ok(_) => return Err(
+                "Swagger UI asset preparation failed; see the diagnostic above and docs/INSTALL.md"
+                    .into(),
+            ),
             Err(error) if error.kind() == std::io::ErrorKind::NotFound => continue,
             Err(error) => return Err(error.into()),
         }

deploy/README.md

@@ -1,7 +1,7 @@
 # Example Linux service
 
 `rustproxy.service` is an operator-reviewed deployment example, not an installed or
-tested service. With RustProxy 0.34.2, the example includes `ExecReload` so `systemctl reload rustproxy` uses the authenticated CLI soft reload. If using `RUST_PROXY_CONFIG`, configure it in the service EnvironmentFile so both `ExecStart` and `ExecReload` share the same file source. It runs the compiled executable as a dedicated `rustproxy` account,
+tested service. The example includes `ExecReload` so `systemctl reload rustproxy` uses the authenticated CLI soft reload. If using `RUST_PROXY_CONFIG`, configure it in the service EnvironmentFile so both `ExecStart` and `ExecReload` share the same file source. It runs the compiled executable as a dedicated `rustproxy` account,
 uses the public administration profile shown below and grants only the capability needed
 for low-port binding. It does not run the proxy as root or grant Docker socket access.
 

docker-agent/install.sh

@@ -28,8 +28,7 @@ install -d -o rustproxy-docker-agent -g docker -m 0750 /var/lib/rustproxy-docker
 if [[ ! -f /etc/rustproxy/docker-agent.env ]]; then
   install -m 0600 docker-agent.env.example /etc/rustproxy/docker-agent.env
 fi
-# The Go CLI is the single implementation for both manual and packaged
-# provisioning; it preserves existing credentials, certificate and key.
+# Provisioning is delegated to the Go CLI, which keeps existing credentials.
 /usr/local/bin/rustproxy-docker-agent init
 install -m 0644 rustproxy-docker-agent.service /etc/systemd/system/rustproxy-docker-agent.service
 systemctl daemon-reload

docs/ACCESS.md

@@ -2,8 +2,7 @@
 
 Access control can be configured globally, on a Vhost and on selected Custom locations. Policies are **cumulative**: a more specific allow rule does not cancel a denial at a broader level. Changes should be tested with both an allowed and a denied client.
 
-## Global block / allow policy (0.34.13)
-
+## Global block / allow policy
 **Settings → Rules & headers → Global block / allow** applies to public HTTP traffic across all vhosts, redirects and not-found hosts before upstream access. In addition to the existing User-Agent deny patterns, use the global country block/allow list (ISO two-letter codes), client IP/CIDR and allow-only DNS ACL, HTTP method policy, request Content-Type denylist and shared per-IP rate limit. All are disabled by default except previously configured User-Agent blocking. An explicit IP allow does **not** bypass the country policy: both must permit a request. Missing GeoIP country is allowed for country block mode and denied for country allow mode.
 
 Global restrictions add to per-vhost and path rules. Rate-limit requests are counted for each client IP **across** vhosts. Prefer a conservative shared ceiling to avoid blocking shared NAT clients. A global method denial returns 405, the content-type/ACL/UA policy returns 403, and the shared rate limiter returns 429 with `Retry-After`. Admin and TCP/UDP stream listeners are outside this HTTP scope. For global response headers, use the adjacent **Security headers** subtab; see [Security](SECURITY.md).
@@ -39,11 +38,11 @@ New Vhosts store an explicit `authentication` choice; old Vhosts with only `tiny
 
 - **Basic Auth:** protect selected Vhosts with configured credentials. Use HTTPS so credentials are not sent over plaintext.
 - **Tinyauth:** add a verification URL and an HTTPS login URL. RustProxy makes a bounded, body-free authorization request and can pass specifically allowed identity headers upstream. An origin URL automatically uses `/api/auth/nginx` (or set that path explicitly). This Nginx auth-request integration sends `X-Original-URL` and `X-Original-Method`, with a validated `X-Forwarded-For` and `X-Real-IP` for Tinyauth IP ACLs. It does **not** send `X-Forwarded-Host` or `X-Forwarded-URI` to the verifier, avoiding the `conflicting auth module headers` rejection introduced in Tinyauth 5.2.0 while keeping compatibility with earlier versions that implement the Nginx endpoint. Tinyauth has its own timeout and private-backend policy.
-- **Provider-neutral gateway error pages (0.34.15):** One embedded `src/admin/web/error_auth_provider.html` template renders a self-contained HTML page for **Tinyauth, Authelia, authentik, and future providers**, using only the safe provider display name and the failure category. It replaces the three vendor-specific `error_tinyauth_*.html` source files while preserving the familiar Tinyauth response titles and statuses. For example: `502 Tinyauth connection error` if its HTTP client cannot reach Tinyauth (DNS/TCP/TLS/transport), `504 Tinyauth timeout` if the auth deadline expires, or `502 Tinyauth verification error` for unexpected verifier status or invalid/oversized data. The page always retains the HTTP error status, `Content-Type: text/html; charset=utf-8`, `Cache-Control: private, no-store` and `X-Content-Type-Options: nosniff`. Backend URLs, protocol errors and identity data are not shown to visitors. All of these cases **deny access** to the protected origin. HTTP `401`/`403` and configured login redirects remain unchanged. These auth-specific pages take precedence over custom Vhost/general HTTP error pages so the failure remains distinguishable. The generic failure marker also protects Basic Auth denials and provider login redirects from being replaced by Vhost pages. HTTPS-verifier transport errors are classified as connection failures, truncated/oversized/invalid verifier responses as verification failures, and verification deadlines as timeouts.
+- **Provider-neutral gateway error pages:** One embedded `src/admin/web/error_auth_provider.html` template renders a self-contained HTML page for **Tinyauth, Authelia, authentik, and future providers**, using only the safe provider display name and the failure category. It replaces the three vendor-specific `error_tinyauth_*.html` source files while preserving the familiar Tinyauth response titles and statuses. For example: `502 Tinyauth connection error` if its HTTP client cannot reach Tinyauth (DNS/TCP/TLS/transport), `504 Tinyauth timeout` if the auth deadline expires, or `502 Tinyauth verification error` for unexpected verifier status or invalid/oversized data. The page always retains the HTTP error status, `Content-Type: text/html; charset=utf-8`, `Cache-Control: private, no-store` and `X-Content-Type-Options: nosniff`. Backend URLs, protocol errors and identity data are not shown to visitors. All of these cases **deny access** to the protected origin. HTTP `401`/`403` and configured login redirects remain unchanged. These auth-specific pages take precedence over custom Vhost/general HTTP error pages so the failure remains distinguishable. The generic failure marker also protects Basic Auth denials and provider login redirects from being replaced by Vhost pages. HTTPS-verifier transport errors are classified as connection failures, truncated/oversized/invalid verifier responses as verification failures, and verification deadlines as timeouts.
 - Point the verifier URL **directly** at the private Tinyauth service (for example `http://tinyauth:3000/api/auth/nginx`), rather than routing it through a second public proxy that might inject conflicting headers. Do not disable Tinyauth's header-spoofing protections. Confirm that Tinyauth trusts only the actual RustProxy address/network when enabling Tinyauth IP-based access controls (`TINYAUTH_AUTH_TRUSTEDPROXIES`).
-- **Authelia (0.34.15):** select **Authelia → Forward Auth** under **Vhost → Authentication**. Enter the internal service origin (for example `http://authelia:9091`) and the public HTTPS login portal (for example `https://auth.example.com`); RustProxy calls `/api/authz/forward-auth`. It forwards trusted `X-Forwarded-*`, `X-Original-URL` and `X-Original-Method` metadata, verifies the provider result, returns provider-approved `302/303` login redirects only to the configured portal origin, and forwards configured `Remote-*` identity headers after stripping client-forged values. A `200` verifier response alone grants access. `401`/`403` deny; transport failures return 502 and timeouts 504. The Authelia `session.cookies` domains and `authelia_url` are defined in Authelia itself: protecting **unrelated registered domains** generally requires a login URL/cookie configuration within each domain, not one cookie from a single unrelated site.
-- **authentik (0.34.15):** select **authentik → Forward Auth** and enter the private outpost origin (for example `http://authentik:9000`), not an `/if/flow` login URL. RustProxy calls `/outpost.goauthentik.io/auth/nginx`, forwards verified `X-Authentik-*` identity headers, and responds to a `401` with a same-origin login start at `/outpost.goauthentik.io/start?rd=...`. RustProxy reserves `/outpost.goauthentik.io` (and descendants) on the protected application hostname and forwards them to the configured outpost **without checking authentication again**, after ordinary global/Vhost IP/country/rate rules. No manual Custom Location is needed for that path. In authentik create a separate **Proxy Provider → Forward auth (single application)** for each protected external application URL, assign it to the serving outpost, then enable that Vhost's integration. Multiple unrelated domains can share the same authentik installation; they do **not** share a browser cookie across domains.
-- **OIDC (0.34.16, opt-in):** choose **Authelia → OIDC**, **authentik → OIDC**, **Pocket ID → OIDC** or **Other OIDC provider → OIDC** for the protected Vhost. This switches to the shared OIDC implementation instead of the vendor's Forward Auth adapter. Provide the exact HTTPS **Issuer**, Client ID and confidential Client Secret, a strong unique Session Secret (`openssl rand -hex 32`), and `https://YOUR-EXACT-APP-HOST/_rustproxy/oidc/callback` as the **Redirect URL**. Register that exact callback as an allowed redirect URI in the identity provider. The issuer can be `https://auth.example.com.cc` while the protected hostname is `app.linuxiarz.pl`; browser cookies do not cross between them. The issuer's discovery `/.well-known/openid-configuration`, authorization, token and JWKS endpoints must resolve from RustProxy and use the issuer's HTTPS origin with trusted TLS. Use split DNS or the private-address opt-in if the issuer resolves to internal addresses; do not disable HTTPS certificate validation. OIDC currently requires a confidential client using `client_secret_basic`, authorization-code flow, and an RS256 or ES256 signing key. Public PKCE-only clients are not supported.
+- **Authelia:** select **Authelia → Forward Auth** under **Vhost → Authentication**. Enter the internal service origin (for example `http://authelia:9091`) and the public HTTPS login portal (for example `https://auth.example.com`); RustProxy calls `/api/authz/forward-auth`. It forwards trusted `X-Forwarded-*`, `X-Original-URL` and `X-Original-Method` metadata, verifies the provider result, returns provider-approved `302/303` login redirects only to the configured portal origin, and forwards configured `Remote-*` identity headers after stripping client-forged values. A `200` verifier response alone grants access. `401`/`403` deny; transport failures return 502 and timeouts 504. The Authelia `session.cookies` domains and `authelia_url` are defined in Authelia itself: protecting **unrelated registered domains** generally requires a login URL/cookie configuration within each domain, not one cookie from a single unrelated site.
+- **authentik:** select **authentik → Forward Auth** and enter the private outpost origin (for example `http://authentik:9000`), not an `/if/flow` login URL. RustProxy calls `/outpost.goauthentik.io/auth/nginx`, forwards verified `X-Authentik-*` identity headers, and responds to a `401` with a same-origin login start at `/outpost.goauthentik.io/start?rd=...`. RustProxy reserves `/outpost.goauthentik.io` (and descendants) on the protected application hostname and forwards them to the configured outpost **without checking authentication again**, after ordinary global/Vhost IP/country/rate rules. No manual Custom Location is needed for that path. In authentik create a separate **Proxy Provider → Forward auth (single application)** for each protected external application URL, assign it to the serving outpost, then enable that Vhost's integration. Multiple unrelated domains can share the same authentik installation; they do **not** share a browser cookie across domains.
+- **OIDC (opt-in):** choose **Authelia → OIDC**, **authentik → OIDC**, **Pocket ID → OIDC** or **Other OIDC provider → OIDC** for the protected Vhost. This switches to the shared OIDC implementation instead of the vendor's Forward Auth adapter. Provide the exact HTTPS **Issuer**, Client ID and confidential Client Secret, a strong unique Session Secret (`openssl rand -hex 32`), and `https://YOUR-EXACT-APP-HOST/_rustproxy/oidc/callback` as the **Redirect URL**. Register that exact callback as an allowed redirect URI in the identity provider. The issuer can be `https://auth.example.com.cc` while the protected hostname is `app.linuxiarz.pl`; browser cookies do not cross between them. The issuer's discovery `/.well-known/openid-configuration`, authorization, token and JWKS endpoints must resolve from RustProxy and use the issuer's HTTPS origin with trusted TLS. Use split DNS or the private-address opt-in if the issuer resolves to internal addresses; do not disable HTTPS certificate validation. OIDC currently requires a confidential client using `client_secret_basic`, authorization-code flow, and an RS256 or ES256 signing key. Public PKCE-only clients are not supported.
 - **OIDC session and identity:** RustProxy generates short-lived transaction state with S256 PKCE and nonce; requires a signed ID token with exact issuer, audience, validity and nonce; and encrypts a separate `__Host-` session cookie for the application host (default 3600 seconds, max 86400). The session is **not continuously revalidated with the issuer**; removing a user at the issuer does not invalidate an already-issued RustProxy session before its expiry or local logout (`/_rustproxy/oidc/logout`). Successful login injects `Remote-Sub`, `Remote-Issuer`, `Remote-User` and optional `Remote-Email`, `Remote-Name`, `Remote-Groups`; use `(Remote-Issuer, Remote-Sub)` for stable account identity and do not auto-link accounts solely by email or username. The backend must not be directly accessible from untrusted clients. Non-GET/HEAD requests without a valid session receive 401, and authentication endpoint failures return 502/504. The provider URL must not itself be protected by this Vhost's OIDC integration. For Authelia, enabling its Forward Auth portal alone is insufficient: also configure Authelia as an OIDC issuer under `identity_providers.oidc`, with at least one signing key, and register a confidential client for every callback URL (or separate clients per application). OIDC does not require any special support from the application being proxied, only from the remote identity provider.
 
 - **Adding another provider:** Register the vendor and supported methods in `auth_provider::choice::IdentityProvider` and in the Vhost editor. OIDC-compatible vendors reuse the shared `oidc` integration and may need no new Rust transport adapter. New Forward Auth adapters belong in `src/<provider>/mod.rs` with tests and may reuse `forward_auth::Adapter`; their compiled implementation implements the object-safe `auth_provider::Provider` trait. Runtime request handling continues through one `CompiledFrontend.auth_provider` slot and provider-neutral `error_auth_provider.html`. Preserve legacy Vhost configuration keys; add new providers without copying OIDC protocol code or HTML error templates.

docs/API.md

@@ -37,6 +37,27 @@ Some paths have additional DELETE/PATCH operations, job-status resources, query
 
 Certificate inspection accepts `{ "cert_file": "filename.pem" }` for a managed file or an absolute external path and returns `{ "cert_file": "...", "covered_hosts": ["example.com"] }`. It applies the existing certificate-file trust and size checks and reads no private key. It makes no configuration or permission changes. This POST requires the signed-in administrator's normal Origin, request-marker and CSRF checks; general RO/RW API tokens and certificate-only credentials cannot call it.
 
+## Access and authentication
+
+The administration listener is HTTP on loopback (`127.0.0.1:9090`) by default and is separate from the public Vhost listeners. No administrator password is bundled: complete first-time setup with the local CLI (`admin setup-token` or `admin init`). For remote access prefer an SSH tunnel; for direct access enable administration HTTPS with a trusted certificate and restrict the network before binding outside loopback.
+
+| Credential | Scope |
+|---|---|
+| Browser session | Full administration. HttpOnly, SameSite=Strict cookie (Secure on HTTPS), absolute lifetime 7–30 days. Writes require matching Origin, `X-CSRF-Token` and `X-RustProxy-Request: 1`. |
+| General API token (`ro` / `rw`) | Created in **Settings → Security → API tokens**. Displayed once, stored as a hash, bound to a mandatory IP/CIDR allowlist. Sent as `Authorization: Bearer <token>`. `ro` reads resources and sections; `rw` also writes configuration sections and selected operations. Cannot manage authentication, backups, tokens or certificate credentials. |
+| Certificate API key | Key ID + Bearer token limited to specific certificate IDs and actions (reload by default, deploy opt-in). |
+| Prometheus token | Scrape-only credential for the separate exporter; see [Monitoring](MONITORING.md). |
+
+IP checks use the transport peer, never forwarded headers. Outside loopback, Bearer credentials require administration HTTPS.
+
+### `/docs` Reader and Swagger
+
+The authenticated `/docs` page has two tabs: **Reader** with the guides embedded at build time, and **API** with the bundled OpenAPI schema rendered by Swagger UI. All assets are served locally; no CDN is used. Swagger uses the current session, executes read calls directly and asks for confirmation before any write.
+
+### Publishing the panel behind a reverse proxy
+
+This is a special-risk topology. Configure a fixed HTTPS public origin, an allowed hostname and a trusted forwarding boundary. Ordinary public Vhosts never forward administration cookies to an upstream. Re-test CSRF/Origin validation and cookie security after any topology change.
+
 ## Authentication and safe writes
 
 - Ordinary API calls require an administrator browser/session cookie on the admin listener, or a scoped general API Bearer token for explicitly allowlisted API methods/paths. Browser-session writes require the matching Origin, `X-CSRF-Token` and `X-RustProxy-Request: 1`, in addition to Host validation. Scoped Bearer-token requests are exempt from browser CSRF requirements; the server enforces the token permission, source IP allowlist and HTTPS for non-loopback access instead.
@@ -79,7 +100,7 @@ The section name in the URL and its corresponding JSON member in a full configur
 | `logging` | `logging`, `error_log` |
 | `global-security` | `global_security`, including `user_agent_blocking` |
 
-Every GET returns a `value` object or array whose shape can be sent unchanged to the matching PUT. For the three grouped sections the `value` contains exactly the named members; for the other sections it is the serialized value of the matching configuration member. Saving does not alter unrelated sections. In 0.34.16 an ordinary Vhost may configure mutually exclusive `oidc`, `authelia` and `authentik` objects alongside existing `tinyauth`/`basic_auth` settings; every optional provider defaults to disabled. OIDC uses `/_rustproxy/oidc/callback` on an exact Vhost HTTPS hostname and requires issuer/client/session secrets. See [Access](ACCESS.md).
+Every GET returns a `value` object or array whose shape can be sent unchanged to the matching PUT. For the three grouped sections the `value` contains exactly the named members; for the other sections it is the serialized value of the matching configuration member. Saving does not alter unrelated sections. An ordinary Vhost may configure mutually exclusive `oidc`, `authelia` and `authentik` objects alongside existing `tinyauth`/`basic_auth` settings; every optional provider defaults to disabled. OIDC uses `/_rustproxy/oidc/callback` on an exact Vhost HTTPS hostname and requires issuer/client/session secrets. See [Access](ACCESS.md).
 
 ### Complete section-update example
 
@@ -130,4 +151,4 @@ Authorization: Bearer <secret>
 X-RustProxy-Certificate-Key: <key-id>
 ```
 
-The credential can be used only for allowed certificate reload/deploy operations, not configuration, users, metrics or secret management. Non-loopback use requires the appropriate administration HTTPS security boundary. Rotate broad or legacy credentials. See [API access](API_ACCESS.md) and [Certificates](ACME_PROVIDERS.md).
+The credential can be used only for allowed certificate reload/deploy operations, not configuration, users, metrics or secret management. Non-loopback use requires the appropriate administration HTTPS security boundary. Rotate broad or legacy credentials. See [Certificates](CERTIFICATES.md).

docs/API_ACCESS.md

@@ -1,35 +0,0 @@
-# Administration authentication and API access
-
-## Default exposure and setup
-
-The administration listener uses **HTTP loopback (`127.0.0.1:9090`) by default** and is separate from normal Vhost listeners. No administrator password is bundled. Use the local CLI `admin setup-token` or `admin init` to complete first-time setup. For access from another workstation, prefer an SSH tunnel; for direct remote operation, enable **administration HTTPS**, configure a trusted certificate and narrow network access before binding outside loopback.
-
-## Session security
-
-Administrator sessions use an HttpOnly, SameSite=Strict cookie, with Secure on HTTPS. Expiry is bounded by the configured absolute lifetime (7–30 days, default 30). Logout, password changes and revoke-all terminate sessions. API mutations are validated for Host/Origin, CSRF token and request marker; a cookie copied into automation is not an approved general-purpose API token.
-
-Unauthenticated endpoints intentionally expose only minimal setup/sign-in and health behavior. Configuration, operational status, dashboard assets, file logs, the API specification and the documentation Reader require authentication. Admin responses use no-store and security headers, and the browser does not expose the full application state before sign-in.
-
-## `/docs` Reader and Swagger
-
-The authenticated documentation page has two tabs: **Reader**, embedding the registered Markdown guides at compile time, and **API**, displaying the bundled OpenAPI schema. Both are local assets; no runtime CDN access is required for viewing the reference. A document edit affects the shipped reader **only after rebuilding** RustProxy.
-
-Swagger uses the current signed-in session, not a new broad credential. It requires explicit confirmation for write operations. Treat the OpenAPI schema as a request guide and RustProxy's field/authorization validation as the final authority.
-
-## Publishing the panel behind a reverse proxy
-
-This is a **special-risk topology**, not the default. Configure a fixed HTTPS public origin/allowed hostname and a trusted forwarding boundary. RustProxy has an explicit narrowly constrained local-listener exception, but a normal public Vhost must not pass administration cookies to an ordinary upstream. Forwarded Host/Proto values are trusted only when the direct peer satisfies the configured trust rules. Test CSRF/Origin validation and cookie security after a topology change.
-
-## General administration API tokens (0.34.1 DEV)
-
-Settings → **Security → API tokens (RO/RW)** generates a one-time-displayed opaque Bearer credential, with `ro` (read) or `rw` (read/write) permission and a **mandatory allowlist of client IPs or CIDRs**. The token is stored only as a hash; save it securely at creation or generate a replacement. Deleting a token revokes it immediately. The existing browser session workflow is unchanged; this is not a browser login/password substitute.
-
-Send `Authorization: Bearer <token>` to the administration listener over HTTPS outside loopback. IP checks use the transport peer, not spoofable forwarded headers. Only the narrowly allowlisted `/api/*` resource routes are usable: RO is read-only, RW adds selected configuration and operational operations. Tokens cannot access authentication, backups, documentation, other token creation/revocation, certificate API management, or unrestricted administrator endpoints. The separate certificate-only API credentials work independently. The **Settings → Administration** page includes a direct link to token management.
-
-## Certificate-only credentials
-
-Certificate API Key ID + Bearer credentials are limited by certificate ID and by allowed action (reload by default; deploy opt-in). They do not grant login or administrative configuration access. Revocation/rotation are administrator-only actions. Keep tokens out of logs and pass them over HTTPS outside loopback.
-
-## Offline build assets
-
-Swagger JavaScript/stylesheets are prepared by the build and embedded behind authentication. If compilation fails during Swagger asset preparation, inspect `build.rs` and `scripts/build/swagger_assets.py` and ensure the required checked/downloaded asset inputs are available. Do not replace these authenticated assets with an unaudited public CDN workaround.

docs/CACHE.md

@@ -2,8 +2,7 @@
 
 RustProxy provides an optional shared HTTP response cache with a bounded in-memory **HOT** tier and optional persistent-disk **COLD** tier. Both the global cache and a Vhost's effective policy must permit caching. **COLD storage is disabled by default**, and newly created Vhosts do not automatically cache dynamic content.
 
-### Cache controls in Settings (0.34.13)
-
+### Cache controls in Settings
 The static-extension cookie-bypass warning sits with its extension list, separate from **Cache response headers** options. Only enable this optimization for files whose bytes do not depend on the user's session. `Cookie` can then be omitted from the shared cache key for the configured extensions; responses with `Set-Cookie`, `private`, `no-store` or `Vary: Cookie` remain uncacheable.
 
 ## Enable caching safely
@@ -14,8 +13,7 @@ The static-extension cookie-bypass warning sits with its extension list, separat
 4. Optionally enable HIT-only diagnostics. Send repeated identical requests using `curl`, then inspect **Cache → Domains / Stored objects** for `MISS → HIT`.
 5. Review **Varnish-compatible cache policy**, enabled by default, then check TTL, revalidation and invalidation after updating the origin's content or configuration.
 
-## Varnish-compatible cache policy (0.34.7)
-
+## Varnish-compatible cache policy
 **Settings → Cache → Varnish-compatible cache policy** (`cache.varnish_compatible`, **enabled by default**) avoids needless cache replacement on browser hard reloads. On a fresh object it ignores only the client's `Cache-Control: no-cache`, `max-age=0` and `Pragma: no-cache` for cache **lookup/freshness**. It does not remove or modify these request headers when fetching from the origin, and it does not alter cache identity or request conditionals.
 
 Set **Default grace (seconds)** in Settings → Cache (default **60**, range 0..604800). This affects only eligible objects in compatibility mode and never overwrites explicit origin `stale-while-revalidate`, including `=0`. Use the adjacent **i** information icon for the short operator explanation (PL/EN). Disabling the option restores the original strict client reload semantics. Changing modes invalidates currently stored representations across HOT/COLD so they are refilled under one consistent policy; no process restart is needed. Existing JSON configurations with no field inherit `true`. The setting also applies to eligible resources of the embedded Web Server.
@@ -84,8 +82,7 @@ done
 
 Look for cache reason labels including `request_cookie`, `request_authorization`, `response_cache_control`, `route_disabled` and `cache_hit` when diagnostic headers are enabled. A `MISS` alone does not prove the object was admitted to HOT/COLD.
 
-## Cache response headers and upstream diagnostics (0.34.12)
-
+## Cache response headers and upstream diagnostics
 **RFC 9211:** `Cache-Status` is a structured list of cache hops, ordered from the origin-side cache toward the client. RustProxy **does not replace or suppress** an upstream `Cache-Status`. When **Settings → Cache → Expose Cache-Status** is enabled and RustProxy makes a cache decision, it appends its own `RustProxy` member to the existing list; multiple HTTP header fields are an equivalent wire representation of the same list. There is no `backend=hit/miss` parameter: the upstream's own members already describe its cache decisions.
 
 For example, with an upstream HIT and a RustProxy HIT:
@@ -134,7 +131,7 @@ The initial request can show `RustProxy; fwd=miss`; an eligible repeat should sh
 
 Authenticated Cache page/API operations can purge selected entries, domains or larger scopes. The optional public HTTP `PURGE`/`BAN` interface is **disabled by default**. Enable it only by listing trusted client IPs/CIDRs under **Settings → Cache → HTTP BAN / PURGE IP allowlist**; operations are additionally subject to Vhost binding and normal access controls. `PURGE` addresses an exact URL; `BAN` applies the supported bounded matching rules. Never allow untrusted Internet clients to purge all tenants' objects.
 
-In 0.34.0, changing operational Vhost settings is intended to preserve compatible HOT/COLD objects; content-affecting changes invalidate affected scopes and COLD carries an additional fingerprint against stale resurrection. **This new behavior still needs release-level verification**, so validate cache after configuration edits and during upgrades. Earlier persistent cache entries may need refilling following format/compatibility transitions.
+Changing operational Vhost settings is intended to preserve compatible HOT/COLD objects; content-affecting changes invalidate affected scopes and COLD carries an additional fingerprint against stale resurrection. **This new behavior still needs release-level verification**, so validate cache after configuration edits and during upgrades. Earlier persistent cache entries may need refilling following format/compatibility transitions.
 
 ## Troubleshooting
 

docs/CERTIFICATES.md

@@ -11,8 +11,7 @@ ancestor even though it can host a Web Server document root. See
 [Installation: external paths](INSTALL.md#linux-debrpm-read-only-access-to-external-paths)
 for scoped ACLs and Certbot renewal handling.
 
-### Certificate file permission command preview (0.34.13)
-
+### Certificate file permission command preview
 The permissions explanation now appears next to generated read/traversal ACL commands, rather than alongside the path inputs. The **Copy commands** action is offered only after a valid path selection produces a command preview. These commands grant read access to the certificate/private key and traversal of parent directories; they do not grant write permission.
 
 ## Supported certificate methods
@@ -37,7 +36,7 @@ HTTP-01 cannot create wildcard certificates; use DNS-01. A staging certificate i
 5. Wait for the job result; inspect errors under Certificates and the service logs.
 6. Assign the issued/imported certificate to the intended Vhost/listener and verify a real TLS handshake with the public hostname.
 
-In 0.34.1 DEV, expand a certificate in the Certificates inventory and use **Assign Vhosts** to check/uncheck multiple Vhosts before applying one revisioned Vhost-section save. This updates Vhost certificate mappings, not the PEM files themselves. Verify frontend listener and certificate hostname coverage separately.
+Expand a certificate in the Certificates inventory and use **Assign Vhosts** to check/uncheck multiple Vhosts before applying one revisioned Vhost-section save. This updates Vhost certificate mappings, not the PEM files themselves. Verify frontend listener and certificate hostname coverage separately.
 
 The reserved HTTP-01 challenge path is available only during eligible issuance/renewal work. It is not a generic public file server and does not bypass authentication for unrelated URLs.
 

docs/CONFIGURATION.md

@@ -2,7 +2,7 @@
 
 Most settings are managed in the authenticated panel. Save changes after validation; use **Configuration history** to compare or restore an earlier revision. Some listeners are process-owned and require restart to change. Configuration updates are not a replacement for encrypted full backups.
 
-> Cache compatibility: **Settings → Cache → Varnish-compatible cache policy** (`cache.varnish_compatible`) defaults to `true` in 0.34.7, also for configs without the field. Turning it off restores legacy client freshness handling. Implicit grace defaults to **60 seconds** (`cache.varnish_grace_seconds`, editable in Settings → Cache). See [HTTP cache](CACHE.md#varnish-compatible-cache-policy-0347) for semantics and safety exceptions.
+> Cache compatibility: **Settings → Cache → Varnish-compatible cache policy** (`cache.varnish_compatible`) defaults to `true`, also for configurations without the field. Turning it off restores legacy client freshness handling. Implicit grace defaults to **60 seconds** (`cache.varnish_grace_seconds`, editable in Settings → Cache). See [HTTP cache](CACHE.md#varnish-compatible-cache-policy) for semantics and safety exceptions.
 
 ## Configuration storage: SQLite or JSON file
 
@@ -64,13 +64,12 @@ ACLs support IP/CIDR and **allow-only** DNS/DDNS hostname rules, plus reusable p
 
 Global response headers, per-Vhost rules and Web Service-specific headers are distinct scopes. Security and proxy-protocol headers may be protected from rewriting. Compression supports eligible response encodings; availability is still constrained by global limits and the requesting client.
 
-### Global HTTP block / allow and security headers (0.34.13)
-
+### Global HTTP block / allow and security headers
 Under **Settings → Rules & headers**, choose **Global block / allow** to configure rules applying to every public HTTP vhost, redirect and 404 host. Independent controls cover **country block/allow**, global **User-Agent deny patterns**, **IP/CIDR and allow-only DNS ACL**, **HTTP method allow/block**, **request Content-Type denylist** and a **shared per-client-IP rate limit**. Disabled policies are neutral. If country allow mode is selected, an unknown GeoIP country is denied; block mode permits unknown countries. Global IP and country checks are cumulative, as are global rules and more restrictive per-vhost policies. Verify the trusted client-IP and GeoIP configuration before enabling country or rate controls. The global rate limit uses the same bucket for a given client across all public vhosts. It does not affect TCP/UDP streams or the separate administration listener.
 
 The adjacent **Security headers** subtab applies a global response baseline: **HSTS** (HTTPS only), **nosniff**, **X-Frame-Options**, **Referrer-Policy**, **Content-Security-Policy** and **Permissions-Policy**. Explicit per-vhost security-header values take precedence; absence of a vhost value does not cancel a global header. Test HSTS and CSP against all sites before enabling. **Global custom headers** remains a distinct subtab for arbitrary request/response header rules.
 
-In the updated **0.34.13** API, global User-Agent blocking is nested at `config.global_security.user_agent_blocking`; it is no longer a separate root-level setting. Example (only the relevant fragment):
+Global User-Agent blocking is nested at `config.global_security.user_agent_blocking`; it is no longer a separate root-level setting. Example (only the relevant fragment):
 
 ```json
 {
@@ -87,7 +86,7 @@ On upgrade, older JSON, database rows, backups and revision history containing a
 
 ## Cache and transforms
 
-Caching is opt-in. HOT holds bounded memory entries; COLD is an optional disk tier (off by default). Freshness follows eligible HTTP policy and `Vary`; private/no-store responses and protected requests are not shared. Configuration saves can selectively invalidate affected cached responses; 0.34.0 behavior needs production validation. HTTP BAN/PURGE is **disabled by default** and uses an explicit source-IP allowlist. See [Cache](CACHE.md).
+Caching is opt-in. HOT holds bounded memory entries; COLD is an optional disk tier (off by default). Freshness follows eligible HTTP policy and `Vary`; private/no-store responses and protected requests are not shared. Configuration saves selectively invalidate only the affected cached responses. HTTP BAN/PURGE is **disabled by default** and uses an explicit source-IP allowlist. See [Cache](CACHE.md).
 
 Response transformations are optional and apply only to configured eligible MIME types and scopes. See [Response delivery](RESPONSE_DELIVERY.md) for codec defaults, transformation limits and header precedence. Content rewriting can affect validators, compression and cache entries; test actual representations after configuration changes.
 

docs/CONTAINER.md

@@ -1,38 +0,0 @@
-# Docker / OCI deployment
-
-The included `Dockerfile` compiles RustProxy with a **Rust 1.99** build image and runs it on Debian as an unprivileged `rustproxy` account (UID 10001). It includes Python, Certbot and DNS-plugin packages for certificate handling. The main container does **not** need the Docker socket.
-
-## Build and start
-
-Run from the repository root:
-
-```bash
-docker build -t rustproxy:0.34.2 .
-docker volume create rustproxy-data
-docker run -d --name rustproxy \
-  -p 8080:8080 \
-  -v rustproxy-data:/var/lib/rustproxy \
-  rustproxy:0.34.2
-```
-
-In the image, the default HTTP frontend binds `0.0.0.0:8080`. The admin listener defaults to `127.0.0.1:9090` **inside the container**. Simply publishing container port 9090 does not make that loopback listener reachable from a remote host. Initialize the administrator from a local container shell:
-
-```bash
-docker exec rustproxy rust-proxy admin setup-token
-```
-
-Provide a secure, private path for first-time panel access. If remote administration is required, configure its own HTTPS mode, certificate and an intentional non-loopback listener before mapping the port publicly; restrict it with firewall policy. Never expose plain HTTP administration as a convenience.
-
-## Persistent data and ports
-
-- Mount `/var/lib/rustproxy` persistently for SQLite, private keys, certificate profiles and optional COLD cache. Back it up securely and keep volume ownership correct.
-- Map the chosen HTTP and HTTPS TCP ports. If enabling HTTP/3, publish the corresponding **UDP** port too, and allow it through the host firewall.
-- If you need low-numbered **container** ports, use host-port forwarding or deliberate capability settings; the image runs without root privileges.
-- Store file access logs under a writable location/volume if enabled. The built-in on-disk access-log sink is not necessarily on by default.
-- Managed ACME material in the persisted volume survives container replacement. DNS credentials and external mounts must be protected and carried over separately.
-
-For Docker-based application discovery, install the **separate Docker agent** on each target host and connect it over the supported restricted interface. See [Docker discovery](DOCKER_DISCOVERY.md).
-
-## Upgrade and validate
-
-Build a reviewed new image, preserve the volume, make an encrypted application backup and deploy with a maintenance window. Verify configuration compatibility, listener reachability, frontend certificates, backup/restore and live traffic. The supplied 0.34.2 development source candidate is not itself a production-tested OCI image.

docs/DASHBOARD.md

@@ -14,7 +14,20 @@ page has its own stylesheet.
 
 The Overview contains live counters, charts and optional backend, cache, PHP, Docker and Stream cards. Under **Settings → Appearance → Dashboard layout** or the Overview editor, configure visibility, order, card width, density and the number of history samples. A hidden card stops consuming its optional browser-side visualization work but does not turn off its underlying proxy feature.
 
-In 0.34.1, the unlocked Overview layout exposes a single **Save and lock** action (plus Cancel), removing the redundant lock-and-save button.
+Optional quick-health tiles (since 0.35.2, hidden by default; enable them in the layout editor or **Settings → Appearance → Dashboard layout**):
+
+| Tile | Shows |
+|---|---|
+| **Healthy backends** | Monitored backend members passing health checks as `up / total`, with the names of failing members. |
+| **Error share** | Percentage of HTTP requests that ended with an error during the last sampling interval. |
+| **Rejected by limits / s** | Requests and connections refused by `--max-connections` / `--max-inflight`; sustained values mean the limits are too low for the load. |
+| **Nearest certificate expiry** | Days until the earliest installed certificate expires; the bar is full at 90 days or more. |
+
+Enabled tiles are added at the end of the Overview, so the standard block layout does not change.
+
+The **Remember choice** control next to the history sample count shows a status only when the current choice is temporary (not saved) or briefly after saving.
+
+The unlocked Overview layout exposes a single **Save and lock** action (plus Cancel), removing the redundant lock-and-save button.
 
 **Dashboard Presets** supports up to **16 named layouts per administrator**. Save, load, rename, overwrite and delete presets; a factory layout can be restored. Presets preserve the dashboard arrangement, not the live traffic values. Interface theme, scale and other display settings are also account-scoped and do not alter proxy routing or rewrite shared configuration.
 

docs/FEATURES.md

@@ -0,0 +1,106 @@
+# Feature list
+
+RustProxy is a single service that combines a reverse proxy, a static/PHP web server, certificate management, an HTTP cache and traffic monitoring, all managed from a browser panel or an API. Optional features are disabled by default; enable only what you need.
+
+![Overview dashboard](images/overview.png)
+
+## Reverse proxy
+
+| Feature | Details |
+|---|---|
+| Vhosts | Exact and wildcard hostnames, aliases, several listeners per Vhost, per-Vhost HTTP/2 and HTTP/3 switches |
+| Backends | HTTP and HTTPS origins, HTTP/1.1, automatic ALPN (H2/H1), strict HTTP/2 and H2C, optional upstream certificate verification with custom CA and server name |
+| Load balancing | Least connections (default), round robin, least traffic, adaptive and IP hash; member weights, backup and draining members, sticky cookie or IP affinity |
+| Health checks | Active TCP or HTTP probes with thresholds, optional separate probe port, expected response text and live health status per member |
+| Connection reuse | Bounded keep-alive pools with idle and age limits, pool recycling and protocol telemetry |
+| Custom locations | Prefix, exact and regex paths, path rewriting, per-location backends, Web Services, local responses, redirects and internal error fallbacks |
+| WebSockets | HTTP/1.1 Upgrade, RFC 8441 (HTTP/2) and RFC 9220 (HTTP/3) Extended CONNECT |
+| Forwarding headers | `X-Forwarded-*`, `Forwarded`, `X-Real-IP`, trusted proxy ranges, Cloudflare client IP and country |
+| Redirects and pages | Redirect hosts, canonical host and HTTPS redirects, 404 hosts, custom error pages and direct-IP pages |
+| TCP/UDP Streams | Layer-4 forwarding with backend pools, health checks, session limits and idle timeouts |
+
+## Frontends and TLS
+
+- HTTP/1.1, HTTPS with HTTP/2, optional HTTP/3 (QUIC) with `Alt-Svc` management and configurable UDP buffers.
+- Named listeners with per-listener protocols; Vhosts bind to listener IDs.
+- TLS 1.2/1.3 policy with cipher-suite allowlist and per-Vhost overrides.
+- Optional hybrid post-quantum key exchange (X25519MLKEM768).
+- SNI certificate selection, hot certificate reload without restart.
+
+## Web Server
+
+- Static sites and downloads served from reusable **Web Services** shared by several Vhosts.
+- Index files, optional directory listing, MIME mapping and attachment extensions.
+- `try_files`, regex rewrites and a safe subset of Apache `.htaccess` rules.
+- Conditional requests (`ETag`, `Last-Modified`), byte ranges, precompressed `.br`/`.gz` sidecars and optional Linux `sendfile`.
+- Symlink policy, attack-probe blocking and header hardening presets.
+- PHP through external PHP-FPM with shared profiles, per-application pools and resource limits.
+- Presets for single-page apps, WordPress and Roundcube.
+
+![Web Server editor](images/web-server.png)
+
+## Certificates
+
+- Self-signed certificates, PEM import and externally managed certificate paths (for example Certbot).
+- Managed ACME with HTTP-01 and DNS-01 (Cloudflare, OVH, RFC 2136), automatic renewal and job history.
+- Certificate inventory with expiry, coverage check and bulk assignment to Vhosts.
+- Restricted certificate API keys for deploy/reload from external systems such as OPNsense.
+- Prometheus metrics for the expiry date and remaining days of every installed certificate, ready for alerting.
+
+![Certificates](images/certificates.png)
+
+## Access and security
+
+- IP/CIDR and DNS/DDNS allow/deny rules, reusable ACL profiles (up to eight per Vhost).
+- Country allow/deny lists with automatic GeoIP database updates.
+- Request rate limiting per Vhost and globally, with burst and `Retry-After`.
+- HTTP method policy, request Content-Type denylist and User-Agent blocking.
+- Security headers: HSTS, CSP, X-Frame-Options, Referrer-Policy, Permissions-Policy, `nosniff`.
+- HTTP Basic authentication with Argon2 hashes and brute-force limits.
+- Forward Auth with Tinyauth, Authelia and authentik; OIDC (Authorization Code + PKCE) with Authelia, authentik, Pocket ID and compatible providers.
+- Fail-closed authentication errors, identity header stripping and private/no-store responses for authenticated content.
+- Protection against private/loopback/control-plane upstream destinations unless explicitly allowed.
+
+## Cache and delivery
+
+- Shared HTTP cache with a memory tier (HOT) and an optional disk tier (COLD).
+- RFC 9111 freshness, validators and `Vary`; stale-while-revalidate, stale-if-error and request coalescing.
+- Varnish-compatible policy option, forced caching rules and per-location cache switches.
+- RFC 9211 `Cache-Status` and optional `X-Cache` diagnostics.
+- Purge and ban from the panel, the API or HTTP PURGE/BAN from allowlisted addresses.
+- Live compression with gzip, Brotli, Zstandard and deflate.
+- Optional minification of JavaScript, CSS, HTML, SVG and JSON with memory budgets.
+
+![Cache](images/cache.png)
+
+## Monitoring and logs
+
+- Overview dashboard with requests per second, bandwidth, status codes, error share, cache hit ratio, protocol mix, system load, backend health, requests rejected by limits and nearest certificate expiry.
+- Customizable dashboard layouts and saved presets.
+- Per-Vhost, per-backend, per-Web-Service and per-Stream statistics.
+- Live request log in the browser and in the terminal (`--livelogs`).
+- Stored JSON access logs with search syntax, per-Vhost log files and an error log.
+- Prometheus exporter with token/CIDR protection, JSON metrics and a compact summary endpoint.
+- Grafana dashboard and Nagios checks included.
+
+![Live logs](images/logs.png)
+
+## Operations
+
+- Configuration stored in SQLite or in a JSON file, with validation before activation and hot reload.
+- Revision history with diff and one-click restore.
+- Encrypted full backups and validated offline restore; encrypted Secret Store for credentials.
+- Docker discovery through a separate agent: publish containers as Vhosts with one switch.
+- Nginx Proxy Manager import with a dry-run plan.
+- Managed install/update scripts with rollback, DEB/RPM packages, Docker image and an OPNsense plugin.
+- Panel in English and Polish, light and dark themes, adjustable density and corner style.
+
+## Administration and API
+
+- Panel served on a separate, loopback-only listener by default; optional HTTPS for remote administration.
+- Single administrator with Argon2 password, session revocation and CSRF/Origin protection.
+- Complete REST API described by a bundled OpenAPI schema with Swagger UI at `/docs`.
+- Scoped `ro`/`rw` API tokens bound to IP allowlists.
+- Command-line tools for setup, configuration, certificates, backups and live logs.
+
+See the [screenshots](SCREENSHOTS.md) for a visual tour and the [documentation index](README.md) for detailed guides.

docs/INSTALL.md

@@ -11,7 +11,7 @@ Use maintained packages whenever possible. For custom installations, use the scr
 | OPNsense plugin | https://rustproxy-opn.linuxiarz.pl/ |
 | Debian 13+ source bootstrap | `install-debian13.sh` from the project repository |
 | Manual Linux/systemd install | Compile the application; use `install.sh` and `update.sh` |
-| OCI container | Included `Dockerfile`; see [Container](CONTAINER.md) |
+| OCI container | Included `Dockerfile`; see [Docker / OCI container](#docker--oci-container) |
 
 Package/plugin instructions and maintenance policies are maintained separately from the source archive. The optional Docker agent is packaged independently of RustProxy's main service for **Linux amd64/x86_64 only**, not FreeBSD pkg. On a Docker host, the agent can also be installed manually from `docker-agent/install.sh`; the installer and packages preserve existing tokens and TLS keys. See [Docker discovery](DOCKER_DISCOVERY.md) and [agent operations](../docker-agent/README.md).
 
@@ -31,7 +31,7 @@ The script installs dependencies, builds with `cargo build --release --locked` a
 
 ## Build from the source
 
-The current `Cargo.toml` declares **Rust 1.99 minimum**, with a `stable` toolchain in `rust-toolchain.toml`. Use Cargo, a C compiler/linker, Bash and Python 3 (Python 3.11+ is advisable for project checks). Run as a normal build user:
+The minimum Rust version is declared in `Cargo.toml` (`rust-version`); `rust-toolchain.toml` selects the `stable` channel. Use Cargo, a C compiler/linker, Bash and Python 3 (Python 3.11+ is advisable for project checks). Run as a normal build user:
 
 ```bash
 bash dev.sh doctor
@@ -89,8 +89,7 @@ Then visit `http://127.0.0.1:9090` on your workstation. For a directly reachable
 
 ## Linux DEB/RPM: read-only access to external paths
 
-New Linux packages (package-builder filesystem-access policy, revision 5) and
-the maintained manual service template use `ProtectHome=read-only` rather than
+Linux packages and the maintained manual service template use `ProtectHome=read-only` rather than
 `ProtectHome=true`. This makes document roots under `/home`, `/var/www` and
 `/srv` readable if the service account has **ordinary Unix group or ACL
 permissions**. `ProtectSystem=strict` remains enabled: the service cannot
@@ -98,7 +97,7 @@ modify these files merely because a group or ACL permits it. No systemd
 drop-in or extra `ReadOnlyPaths=` entry is needed to **read** site content or
 an external certificate. This also applies when paths are stored in the panel.
 
-In **0.34.10**, the panel generates Linux permission commands from the actual
+The panel generates Linux permission commands from the actual
 paths you enter: below the two external certificate/key fields, and directly
 below a Web Server's document root. The commands target the standard
 `rustproxy` account and resolve symlink targets when run. Review them and run
@@ -160,7 +159,7 @@ After granting certificate read access, return to the form and use
 **Read names from certificate**. The editor reads the public certificate's
 DNS SAN entries into the legacy SNI field; this does not read the private key
 or save the certificate. Manual name edits are preserved by background reads.
-See [Certificates](ACME_PROVIDERS.md#permission-commands-and-automatic-sni-names).
+See [Certificates](CERTIFICATES.md#permission-commands-and-automatic-sni-names).
 
 To diagnose unresolved errors, run `systemctl cat rustproxy` and
 `systemctl show rustproxy -p ProtectHome -p ProtectSystem -p User -p Group`,
@@ -170,7 +169,7 @@ check parent permissions with `namei -l /path/to/file`, and examine
 unit and is **not** automatically removed by an upgrade. On SELinux/AppArmor
 hosts, additional mandatory access-control policy may be required; POSIX ACLs
 cannot bypass it. See [Web Server](WEB_SERVER.md) and
-[Certificates](ACME_PROVIDERS.md).
+[Certificates](CERTIFICATES.md).
 
 **Write access is intentionally different.** An app that needs to upload or
 modify files under an arbitrary document root needs a separately planned
@@ -233,6 +232,28 @@ This is **optional**. Without `--config`, RustProxy keeps its active configurati
 
 For the alternate environment-variable method, set `RUST_PROXY_CONFIG=/etc/rustproxy/config.json` in the service's protected EnvironmentFile. Do not set **both** unrelated config paths. See [Configuration](CONFIGURATION.md) and the [deployment example](../deploy/README.md).
 
+## Docker / OCI container
+
+The included `Dockerfile` compiles RustProxy in a Rust build image and runs it on Debian as the unprivileged `rustproxy` account (UID 10001). The image contains Python, Certbot and DNS plugins for certificate automation. The main container does **not** need the Docker socket.
+
+```bash
+docker build -t rustproxy:latest .
+docker volume create rustproxy-data
+docker run -d --name rustproxy \
+  -p 8080:8080 \
+  -v rustproxy-data:/var/lib/rustproxy \
+  rustproxy:latest
+docker exec rustproxy rust-proxy admin setup-token
+```
+
+Inside the image the HTTP frontend binds `0.0.0.0:8080` and administration binds `127.0.0.1:9090`, so publishing port 9090 alone does not expose the panel. For remote administration, enable administration HTTPS with a certificate and an explicit non-loopback listener first, and restrict access with firewall rules.
+
+- Mount `/var/lib/rustproxy` persistently: it holds SQLite, private keys, certificate profiles and the optional COLD cache.
+- Publish the HTTP/HTTPS TCP ports you use, and the matching **UDP** port when HTTP/3 is enabled.
+- The image runs without root; map low host ports with port forwarding or deliberate capabilities.
+- To discover containers on other hosts, install the separate [Docker agent](DOCKER_DISCOVERY.md).
+- Upgrade by building a new image, keeping the volume and taking an encrypted backup first.
+
 ## Managed update
 
 Test the new build first. Then execute:
@@ -246,10 +267,8 @@ Managed updates preserve the saved configuration, create a private backup, switc
 
 ## ACME prerequisites
 
-The managed certificate service can create a private Python/Certbot environment in the data directory; a usable system Certbot may be used as fallback. DNS-01 providers need credentials and appropriate permissions. HTTP-01 needs incoming public TCP `80`. On systems without an available Python/Certbot runtime, PEM import and external certificate references can still be used. See [Certificates](ACME_PROVIDERS.md).
+The managed certificate service can create a private Python/Certbot environment in the data directory; a usable system Certbot may be used as fallback. DNS-01 providers need credentials and appropriate permissions. HTTP-01 needs incoming public TCP `80`. On systems without an available Python/Certbot runtime, PEM import and external certificate references can still be used. See [Certificates](CERTIFICATES.md).
 
 ## After installation
 
 Verify `systemctl status rustproxy` and `journalctl -u rustproxy` (managed systemd), the panel login, frontend certificates, first Vhost, real backend response, access policies, optional QUIC, current logs and a full backup/restore test. For error diagnosis, consult [Troubleshooting](TROUBLESHOOTING.md).
-
-**Release verification:** RustProxy 0.34.2 is a source package; complete a Rust 1.99+ build and target-platform HTTP/systemd/security acceptance tests before Internet-facing production use.

docs/INTEGRATIONS.md

@@ -1,24 +0,0 @@
-# Integrations overview
-
-RustProxy offers built-in integrations and optional helper components. Each has its own permissions and network requirements; enabling an integration does not automatically configure its external service.
-
-| Integration | Purpose | Setup and limits |
-|---|---|---|
-| **Docker agent** | Discover running Docker services and publish generated Vhosts | Install separate agent on Docker host; use Bearer token and TLS certificate pin. [Guide](DOCKER_DISCOVERY.md). |
-| **Tinyauth** | Delegate authentication for selected Vhosts | Existing Nginx auth-request support remains unchanged, with fail-closed 502/504 errors. [Access](ACCESS.md). |
-| **Authelia** | Forward auth for selected Vhosts | Select it in Vhost Authentication, set internal service origin and trusted public HTTPS login URL, and configure the portal's per-domain cookie rules. [Access](ACCESS.md). |
-| **OIDC integration method (Authelia, Pocket ID, authentik and compatible issuers)** | Central OAuth/OIDC login for protected apps across different parent domains | Select the identity provider, then OIDC. Set HTTPS issuer discovery, Client ID/Secret, explicit app callback and encrypted local session. Requires an OIDC client on the chosen provider. [Access](ACCESS.md). |
-| **authentik** | Forward auth for selected Vhosts, including unrelated application domains | Configure one authentik single-application proxy provider per public application and its serving outpost; enter the outpost's internal origin. RustProxy handles the reserved outpost path automatically. [Access](ACCESS.md). |
-| **ACME / Certbot** | Issue/renew HTTPS certificates | HTTP-01 or DNS-01 via Cloudflare, OVH or RFC2136; protect credentials. [Certificates](ACME_PROVIDERS.md). |
-| **Prometheus** | Scrape operational metrics | Separate endpoint/token/CIDR rules. [Monitoring](MONITORING.md). |
-| **Grafana** | Visualize Prometheus results | Example dashboard under `grafana/README.md`. |
-| **Nagios** | External service checks | Sample checks under `nagios/README.md`; configure authorized network/API access. |
-| **Nginx Proxy Manager** | Import existing NPM proxy hosts | Included Python dry-run migration, without importing all NPM settings or private certificates. [Migration](MIGRATION.md). |
-| **OPNsense certificate deploy** | Deploy certificates from OPNsense ACME plugin | Review `integrations/opnsense-acme/README.md` and use scoped certificate credentials. |
-| **RouterOS OCI packaging** | Build an image suited to RouterOS-container environments | Separate experimental packaging under `integrations/routeros-oci-build/README.md`; test the host architecture/network constraints. |
-
-## Rules of thumb
-
-Use API credentials with the smallest allowed action/scope and terminate TLS on sensitive network links. The Docker socket must remain confined to the Docker agent host, not the main proxy. Certificate deploy/reload tokens are **not** general administrator API tokens. For imported NPM services, revisit backend TLS verification, frontend certificate assignment, access rules and special Nginx directives manually.
-
-External compatibility depends on the versions and settings of those external products; this source archive cannot establish acceptance against a live provider or CA.

docs/MIGRATION.md

@@ -1,6 +1,6 @@
 # Upgrades and migration
 
-This guide covers changes that need operator action when moving to RustProxy 0.34.0 and the included Nginx Proxy Manager importer. For ordinary package upgrades, first follow [Installation and updates](INSTALL.md).
+This guide covers upgrades that need operator action and the included Nginx Proxy Manager importer. For ordinary package upgrades, first follow [Installation and updates](INSTALL.md).
 
 ## Before changing versions
 
@@ -16,8 +16,8 @@ A managed install uses `update.sh`; an unmanaged source-tree install must follow
 
 | Change area | What to review |
 |---|---|
-| **0.34.0 cache** | Operational Vhost saves aim to retain compatible HOT/COLD cache. Content-affecting changes invalidate a scope; older disk cache objects can require refilling. Validate actual behavior before rollout. |
-| **0.34.0 Web Server** | `sendfile=auto` is an optional Linux cleartext HTTP/1.1 path; default is `off`. No existing service needs to enable it. |
+| **Cache** | Operational Vhost saves aim to retain compatible HOT/COLD cache. Content-affecting changes invalidate a scope; older disk cache objects can require refilling. Validate actual behavior before rollout. |
+| **Web Server** | `sendfile=auto` is an optional Linux cleartext HTTP/1.1 path; default is `off`. No existing service needs to enable it. |
 | **0.32.x origin protocols** | Legacy backend `http2` remains compatible on TLS (H2/H1) and H2C for plain HTTP. New strict `h2` must be set explicitly. |
 | **0.33.x Overview** | Dashboard presets/layouts are per administrator, independent from Vhost configuration; existing preferences should be retained and new widgets may remain hidden. |
 | **Certificate API grants** | Older broad/reload-only credentials can exist after additive migration; replace them with explicit certificate-ID allowlists and least privilege. |

docs/MONITORING.md

@@ -24,7 +24,7 @@ Overview allows account-specific card layout and history controls; see [Dashboar
 
 The exporter is **disabled by default** and uses a separate HTTP listener, normally `127.0.0.1:9191`, at `/metrics`. It is not protected by the admin browser cookie; it has its **own** client-network and bearer-token policy. In **Settings → Prometheus** enable the endpoint and configure:
 
-In 0.34.1, use the separate **Prometheus token** controls in Settings to generate, rotate or revoke a 32+ character Bearer credential. Its clear value appears only once; copy it directly into your monitoring secrets store. The database keeps only its hash, and rotation/revocation takes effect without reprinting the previous secret. The older environment-variable credential remains supported as a fallback *only until* a generated credential or explicit revocation entry exists. Setting a new token does not reconfigure the exporter listener or its enable switch.
+Use the separate **Prometheus token** controls in Settings to generate, rotate or revoke a 32+ character Bearer credential. Its clear value appears only once; copy it directly into your monitoring secrets store. The database keeps only its hash, and rotation/revocation takes effect without reprinting the previous secret. The older environment-variable credential remains supported as a fallback *only until* a generated credential or explicit revocation entry exists. Setting a new token does not reconfigure the exporter listener or its enable switch.
 
 
 - `listen`, `path`, `allowed_cidrs` and an optional environment-variable **name** `bearer_token_env` (the secret value is supplied separately to the service).
@@ -44,6 +44,14 @@ scrape_configs:
       - targets: ['127.0.0.1:9191']
 ```
 
+Certificate expiry is exported for every installed certificate, including manually uploaded ones: `rust_proxy_certificate_not_after_timestamp_seconds{certificate="…"}` and `rust_proxy_certificate_days_remaining{certificate="…"}` (negative after expiry). Values are read from the certificate files and refreshed at most every five minutes. Example alert:
+
+```yaml
+- alert: RustProxyCertificateExpiresSoon
+  expr: rust_proxy_certificate_days_remaining < 14
+  for: 1h
+```
+
 When using a bearer token, configure Prometheus `authorization` or `bearer_token_file` securely rather than embedding a clear token in an exported dashboard. Review `grafana/README.md` and `grafana/rustproxy-overview.json` for chart examples; `nagios/README.md` contains external check scripts.
 
 ## JSON metrics API for external dashboards

docs/PERFORMANCE.md

@@ -0,0 +1,100 @@
+# Performance
+
+RustProxy runs on Tokio and Hyper with an asynchronous, streaming request path. This guide describes how performance is measured, where RustProxy stands compared with a similarly configured Nginx, and which settings matter in production.
+
+## What is measured
+
+Results are only comparable when both servers do the same work. A stock Nginx installation does very little per request, while RustProxy always records request statistics, traffic analytics and access logs and adds forwarding headers. The comparison therefore uses an Nginx configuration with a similar feature set:
+
+| Feature | Nginx | RustProxy |
+|---|---|---|
+| Access log | `log_format` with timing fields, 64 KiB buffer | Built-in access log and live statistics (default) |
+| Forwarding headers | `Host`, `X-Forwarded-For`, `X-Forwarded-Proto`, `X-Real-IP` | `Forwarded`, `X-Forwarded-*`, `X-Real-IP`, `X-Request-Id` (default) |
+| Response headers | `X-Request-ID`, `X-Content-Type-Options` | Request ID and default security headers |
+| Upstream keep-alive | `keepalive 64`, HTTP/1.1 | Connection pool (default) |
+| Cache | `proxy_cache` with `proxy_cache_lock` | HOT memory cache with request collapsing |
+| Compression | `gzip on` | gzip/Brotli/Zstandard negotiation (default) |
+| Static files | `root`, `etag on` | Web Service with validators (default) |
+
+## Method
+
+- Machine: 2 vCPU virtual machine, Linux 6.18, loopback networking.
+- Each server is pinned to one CPU core (`worker_processes 1` for Nginx, `taskset` for RustProxy). The load generator and the origin share the second core.
+- Load: `wrk -t1 -c50 -d8s`, HTTP/1.1 keep-alive, two or three runs per scenario, average reported.
+- Origin: Nginx serving static files with `Cache-Control: public, max-age=600`.
+- Nginx 1.24 and RustProxy release builds (`lto = "thin"`, `codegen-units = 1`).
+
+## Results
+
+Requests per second on one CPU core (higher is better):
+
+| Scenario | Nginx | RustProxy 0.35.0 | RustProxy 0.35.2 | 0.35.2 vs 0.35.0 |
+|---|---:|---:|---:|---:|
+| Reverse proxy, 1 KiB response | 61,400 | 14,700 | 15,100 | +3% |
+| Reverse proxy, 100 KiB response | 10,600 | 14,500 | 15,500 | +7% |
+| Cache hit, 1 KiB response | 53,300 | 22,500 | 25,000 | +11% |
+| Web Server, 1 KiB file | 85,000 | 15,200 | 26,000 | +71% |
+| Web Server, 100 KiB file | 25,900 | 9,200 | 16,900 | +84% |
+
+Reading the results:
+
+- **Large proxied responses:** RustProxy streams the body directly between connections and is faster than Nginx in its default buffering mode, which spools larger upstream responses to temporary files.
+- **Small requests:** Nginx remains ahead, because its fixed per-request cost is lower. In RustProxy this cost is dominated by per-request accounting (live statistics, traffic analytics, request IDs and logs) and by the asynchronous runtime. For most deployments it is far below the capacity of the backends behind the proxy.
+- **Static files:** since 0.35.1 RustProxy reads files directly on the request task instead of a background thread pool, which nearly doubles static throughput.
+- **Why small requests and cache hits trail Nginx:** each proxied request crosses the loopback network twice (client and backend), and on a VM about half of the CPU time goes to the kernel for those writes and the wake-ups of the other side. Most of the remaining time is RustProxy's per-request work that Nginx does not do in the same way: request IDs, live per-Vhost statistics, traffic analytics and structured access-log entries, plus the asynchronous runtime. A cache hit saves the backend hop but still pays for this accounting, so its gap is similar. No single function dominates the profile; closing the gap further would require architectural changes rather than tuning.
+- **CPU per request:** at the 1 KiB proxy scenario RustProxy uses about 70 µs of CPU time per request on the test machine, Nginx about 17 µs. A single core therefore sustains well over 10,000 proxied requests per second.
+
+Throughput scales with additional CPU cores; RustProxy uses all available cores automatically.
+
+## Memory allocator
+
+Release builds use the operating system's allocator (glibc on most Linux distributions). An alternative allocator, [mimalloc](https://github.com/microsoft/mimalloc), can be compiled in as an optional feature:
+
+```bash
+cargo build --release --features mimalloc
+```
+
+It is off by default because of how it behaves with a large HOT cache. Measured on the test machine with a 300 MiB HOT cache under constant turnover (random objects of 1–260 KiB, continuous evictions):
+
+| Build | Process memory (RSS) | Throughput under cache turnover |
+|---|---:|---:|
+| System allocator (default) | 614 MiB | 5,700 req/s |
+| mimalloc | 760 MiB (+24%) | 20,300 req/s (3.5×) |
+| mimalloc with `MIMALLOC_PURGE_DELAY=0` | 720 MiB (+17%) | 18,600 req/s |
+
+In the standard scenarios from the results table (proxy, cache hits, static files) the two allocators performed within measurement noise. On a production server with a 600 MiB HOT cache the same difference showed as about 800 MiB versus 1.1–1.2 GiB of process memory.
+
+Choose mimalloc only when all of these apply:
+
+- the HOT cache holds many objects that are replaced constantly (high eviction rate on the **Cache** page);
+- throughput under that turnover matters more than memory;
+- the server has at least 30% RAM headroom above the configured HOT cache size.
+
+Otherwise keep the default. The system allocator returns memory from evicted cache entries to the operating system right away, so process memory stays close to the configured cache size.
+
+## Production tuning
+
+| Setting | Recommendation |
+|---|---|
+| Cache | Enable the HOT cache for cacheable content; hits avoid the backend completely. |
+| Compression | Keep it enabled for text content. Use precompressed `.br`/`.gz` files for static sites. |
+| Upstream protocol | Prefer HTTP/1.1 keep-alive or HTTP/2 to backends; avoid backends that close every connection. |
+| Health checks | Use intervals of several seconds; frequent probes consume capacity on large installations. |
+| Logging | Keep stored log files on fast local storage and use retention limits on busy servers. |
+| Limits | `--max-connections` (default 512) and `--max-inflight` (default 256) cap concurrency. Raise them on busy servers with enough memory. |
+| `sendfile` | Optional for large cleartext static files on Linux. On the test machine it gave no measurable gain, so keep `off` unless your own measurements show otherwise. |
+| Memory allocator | Keep the default system allocator. See [Memory allocator](#memory-allocator) for when the optional `mimalloc` build is worth its extra memory. |
+| TLS | TLS 1.3 with session resumption keeps handshake cost low; HTTP/2 or HTTP/3 reduce connection setup for browsers. |
+
+## Reproducing the test
+
+1. Start an origin (any static HTTP server) with a 1 KiB and a 100 KiB file.
+2. Configure RustProxy with one Vhost pointing to the origin and one Web Service serving the same directory.
+3. Configure Nginx with the equivalent features from the table above.
+4. Pin each server to the same number of cores and run `wrk` from a different core:
+
+```bash
+taskset -c 1 wrk -t1 -c50 -d8s -H "Host: proxy.example" http://127.0.0.1:8080/1k.txt
+```
+
+Always compare matched configurations on the same machine, and repeat each run. Results on physical hardware and real networks differ from loopback measurements.

docs/README.md

@@ -1,44 +1,67 @@
 # RustProxy documentation
 
-Practical guides for **RustProxy 0.35.0**. This index and the listed pages are also available in the authenticated panel at **`/docs → Reader`**. The adjacent **API** tab provides the embedded OpenAPI reference. Paths below are links to actual files in the source archive.
+Guides for operating RustProxy: installation, publishing services, security, certificates, monitoring and automation. The same pages are available in the administration panel under **`/docs → Reader`**, next to the interactive **API** reference.
+
+- Project website and packages: [rustproxy.linuxiarz.pl](https://rustproxy.linuxiarz.pl/)
+- Source code: [git.linuxiarz.pl/gru/RustProxy](https://git.linuxiarz.pl/gru/RustProxy)
+- License: [GNU AGPL v3.0 or later](../LICENSE)
+
+## Overview
+
+- [Feature list](FEATURES.md) — everything RustProxy can do, grouped by area.
+- [Screenshots](SCREENSHOTS.md) — a tour of the administration panel.
+- [Performance](PERFORMANCE.md) — benchmark method, comparison with Nginx and tuning.
 
 ## Getting started
 
-- [Installation and updates](INSTALL.md) — packages, build, first administrator, optional JSON/systemd permissions and updates.
-- [Container deployment](CONTAINER.md) — image, persistent state, ports and isolation.
-- [Settings and configuration](CONFIGURATION.md) — active SQLite/file storage source and which changes need restart.
-- [Troubleshooting](TROUBLESHOOTING.md) — symptom-based checks and release validation.
+- [Installation and updates](INSTALL.md) — packages, source build, Docker image, first administrator, systemd and updates.
+- [Configuration](CONFIGURATION.md) — SQLite or JSON configuration source, configuration map and changes that need a restart.
+- [Troubleshooting](TROUBLESHOOTING.md) — symptom-based checks and a rollout checklist.
 
 ## Publishing services
 
-- [Vhosts and backends](VHOSTS.md) — domains, listener bindings, request Content-Type filtering, balancing, health and redirects.
+- [Vhosts and backends](VHOSTS.md) — domains, listeners, backends, balancing, health checks and redirects.
 - [Custom locations](CUSTOM_LOCATIONS.md) — path routing, rewrites, local responses and error fallbacks.
-- [Access and authentication](ACCESS.md) — ACL, country/DDNS, Basic Auth, Tinyauth, Authelia, authentik and rate limits.
-- [Static Web Server](WEB_SERVER.md) — document roots, generated filesystem permission commands, downloads, rules, built-in error pages and file delivery.
-- [PHP-FPM](PHP_FPM.md) — PHP service profiles, security and application examples.
-- [Cache](CACHE.md) — HOT/COLD storage, privacy, TTL, RFC 9211 `Cache-Status`, origin diagnostic headers and invalidation.
-- [Response delivery](RESPONSE_DELIVERY.md) — compression, static transformations and response headers.
-- [HTTP transport](TRANSPORT.md) — HTTPS/H2/H3, WebSockets, origin protocols and timeouts.
-- [Experimental TLS post-quantum key exchange](TLS_POST_QUANTUM.md) — opt-in X25519MLKEM768, compatibility, rollback and validation.
-- [TCP/UDP Streams](STREAMS.md) — non-HTTP forwarding and its security boundaries.
+- [Web Server](WEB_SERVER.md) — static sites, downloads, `try_files`, rewrites, `.htaccess` subset and error pages.
+- [PHP-FPM](PHP_FPM.md) — PHP profiles, pool isolation and application examples.
+- [HTTP transport and TLS](TRANSPORT.md) — HTTPS, HTTP/2, HTTP/3, WebSockets, backend protocols and post-quantum key exchange.
+- [TCP/UDP Streams](STREAMS.md) — non-HTTP forwarding.
 
-The Vhosts and Docker discovery guides include the shared adaptive request-rate chart scale introduced in 0.34.11. Version 0.34.12 preserves that adaptive range and adds a disabled-by-default X/Y scale display option under **Settings → Appearance → Charts**. Release 0.34.13 adds global HTTP security policies and UI layout improvements, groups the global User-Agent policy under `global_security`, provides consistent section-based GET/PUT APIs, and moves manual GeoIP refresh to `POST /api/config/geoip/update`. See [Dashboard](DASHBOARD.md). Release 0.34.14 keeps the Tinyauth Nginx-header compatibility patch and dedicated fail-closed 502/504 pages. Release 0.34.15 adds optional Authelia and authentik forward-auth integrations, a shared provider runtime and a single provider-neutral HTML error template. Release 0.34.16 adds optional OIDC central login across unrelated domains. Release 0.35.0 accepts encoded `/` (`%2F` / `%2f`) in proxied paths while keeping normalized routing/security decisions separate from the original Preserve-mode upstream request target. See [Access](ACCESS.md) and [Troubleshooting](TROUBLESHOOTING.md).
+## Security and access
 
-## Integrations and operations
+- [Access and authentication](ACCESS.md) — ACLs, countries, rate limits, Basic Auth, Forward Auth and OIDC.
+- [Certificates](CERTIFICATES.md) — PEM import, ACME HTTP-01/DNS-01, external Certbot files and automatic renewal.
+- [Security model](SECURITY.md) — trust boundaries and deployment recommendations.
 
-- [Certificates and automatic renewal](ACME_PROVIDERS.md) — PEM, automatic SNI names, path permission commands, HTTP-01, DNS-01, Certbot and external certificates.
-- [Docker discovery](DOCKER_DISCOVERY.md) — optional Linux agent DEB/RPM or manual installation, TLS/token CLI, networking, generated Vhosts and their per-service live HTTP logs.
-- [Other integrations](INTEGRATIONS.md) — Tinyauth, NPM migration, OPNsense and monitoring tools.
-- [Dashboard](DASHBOARD.md) — metrics panels, HIT/MISS/BYPASS/OTHER request mix, presets, configuration history and applying stylesheet updates.
-- [Monitoring](MONITORING.md) — Prometheus, full JSON and compact `summary` API, traffic, backend and cache observations.
-- [Logs](LOGS.md) — live logs, stored logs, error logs and searches.
-- [Backups and recovery](BACKUP.md) — encrypted backups, restore and Secret Store.
-- [Migration](MIGRATION.md) — managed upgrades and Nginx Proxy Manager import.
-- [Security](SECURITY.md) — important trust boundaries and limitations.
-- [Administration API](API.md) and [API access](API_ACCESS.md) — endpoints, sessions and restricted certificate credentials.
+## Performance and delivery
 
-## Release information
+- [Cache](CACHE.md) — HOT (memory) and COLD (disk) cache, freshness, `Cache-Status` and invalidation.
+- [Response delivery](RESPONSE_DELIVERY.md) — compression, transformations and response headers.
 
-[Changelog](../CHANGELOG.md) tracks user/operator-visible technical changes; [Roadmap](../ROADMAP.md) separates current verification work from future ideas. Historical low-level investigations, audits and benchmarks are not part of the live Reader. Keep them separately if you need an audit trail.
+## Operations
 
-When changing functionality, update the appropriate guide, this index, the registered Reader documents and any OpenAPI/schema references together. Describe actual code behavior, not unimplemented plans.
+- [Dashboard](DASHBOARD.md) — Overview cards, layouts, presets and configuration history.
+- [Monitoring](MONITORING.md) — Prometheus exporter, JSON metrics, Grafana and Nagios.
+- [Logs](LOGS.md) — live, stored and error logs.
+- [Backup and recovery](BACKUP.md) — encrypted backups, restore and the Secret Store.
+- [Migration](MIGRATION.md) — upgrades and Nginx Proxy Manager import.
+- [Docker discovery](DOCKER_DISCOVERY.md) — Docker agent and generated Vhosts.
+- [Administration API](API.md) — authentication, tokens, endpoints and configuration sections.
+
+## Integrations
+
+| Integration | Purpose | Guide |
+|---|---|---|
+| Docker agent | Discover containers on Docker hosts and publish them as Vhosts | [Docker discovery](DOCKER_DISCOVERY.md) |
+| Tinyauth, Authelia, authentik | Forward Auth for selected Vhosts | [Access](ACCESS.md) |
+| OIDC (Authelia, authentik, Pocket ID, others) | Central login across unrelated domains | [Access](ACCESS.md) |
+| ACME / Certbot | Certificates via HTTP-01 or DNS-01 (Cloudflare, OVH, RFC 2136) | [Certificates](CERTIFICATES.md) |
+| Prometheus and Grafana | Metrics scraping and a ready dashboard | [Monitoring](MONITORING.md) |
+| Nagios | Service checks for API, backends, latency and queues | [Monitoring](MONITORING.md) |
+| Nginx Proxy Manager | Import of existing proxy hosts | [Migration](MIGRATION.md) |
+| OPNsense | Certificate deployment from the os-acme-client plugin | `integrations/opnsense-acme/README.md` |
+| MikroTik RouterOS | OCI image build for RouterOS containers | `integrations/routeros-oci-build/README.md` |
+
+## Release notes
+
+See the [changelog](../CHANGELOG.md).

docs/SCREENSHOTS.md

@@ -0,0 +1,73 @@
+# Screenshots
+
+A tour of the RustProxy administration panel. The panel runs on the separate administration listener (by default `http://127.0.0.1:9090`) and is available in English and Polish, with light and dark themes.
+
+## Sign-in
+
+Local administrator sign-in. The first account is created with a one-time setup token; there is no default password.
+
+![Sign-in](images/login.png)
+
+## Overview dashboard
+
+Live requests per second, bandwidth, status codes, cache hit ratio, protocol mix, system resources and backend health. Cards can be rearranged, resized, hidden and saved as presets.
+
+![Overview dashboard](images/overview.png)
+
+## Vhosts
+
+Every published domain with its listeners, backends, health, request rate and security options. The editor groups frontend, backends, balancing, security, cache and custom locations.
+
+![Vhost list](images/vhosts.png)
+
+![Vhost editor](images/vhost-editor.png)
+
+## Web Server
+
+Reusable Web Services for static sites and PHP applications, with presets, delivery options and generated filesystem permission commands.
+
+![Web Server](images/web-server.png)
+
+## Certificates
+
+Certificate inventory with expiry, covered hostnames, assigned Vhosts and managed ACME renewal.
+
+![Certificates](images/certificates.png)
+
+## Traffic
+
+Per-Vhost traffic analytics: top paths, clients, user agents, countries, methods and status codes.
+
+![Traffic analytics](images/traffic.png)
+
+## Cache
+
+HOT and COLD cache usage, hit ratio, stored objects and purge/ban tools.
+
+![Cache](images/cache.png)
+
+## Logs
+
+Live and stored request logs with filters, search syntax and record details.
+
+![Logs](images/logs.png)
+
+## Settings
+
+Listeners, TLS policy, security, logging, cache, compression, monitoring, administration and appearance.
+
+![Settings](images/settings.png)
+
+## Documentation and API
+
+The built-in Reader with all guides, and an interactive OpenAPI reference powered by Swagger UI. Both work offline and use the administrator session.
+
+![Documentation Reader](images/documentation.png)
+
+![API reference](images/api.png)
+
+## About
+
+Version, author, license summary and project links.
+
+![About](images/about.png)

docs/SECURITY.md

@@ -45,4 +45,4 @@ The **Security headers** subtab controls an HTTPS HSTS policy and optional globa
 
 ## Release and operational validation
 
-The provided 0.34.0 source includes changes without completed native compilation, all-protocol regression or production performance measurement. Do **not** treat source-code inspection as proof of security or performance. Before using it at an Internet edge, test on the target OS, run the automated suite, verify TLS/H2/H3/WebSocket handling, access and cache privacy, backup/restore, logging and failure recovery. Keep monitored off-host backups and a rollback plan.
+Before exposing a new version at an Internet edge, test it on the target OS with your own configuration: TLS/H2/H3/WebSocket handling, access rules and cache privacy, backup/restore, logging and failure recovery. Keep monitored off-host backups and a rollback plan.

docs/TLS_POST_QUANTUM.md

@@ -1,51 +0,0 @@
-# Experimental post-quantum TLS key exchange (PQC)
-
-## What it does
-
-Post-quantum cryptography (PQC) aims to protect key exchange from attackers with future quantum computing capabilities. **X25519MLKEM768** combines a conventional X25519 ephemeral key agreement with post-quantum **ML-KEM-768** in one TLS 1.3 *hybrid key-exchange group*. Both contributions protect the derived traffic secret. This is **not a TLS cipher suite**: AES-GCM or ChaCha20-Poly1305 and ordinary X.509 RSA/ECDSA certificates remain in use. It does not change certificate signatures to post-quantum algorithms, and does not make all parts of TLS quantum-safe.
-
-When enabled, RustProxy uses the `aws-lc-rs` cryptography provider for selected incoming TLS policies, offering X25519MLKEM768 first and classical key-exchange groups as fallback. When disabled it keeps the existing `ring` TLS provider. The selected key exchange depends on client support and negotiation; turning the switch on does not imply every connection uses PQC. It does **not** change outbound/backend, update-check, certificate-automation or other HTTP client TLS settings.
-
-For implementation details see [rustls defaults and PQC](https://rustls.dev/docs/rustls/manual/_05_defaults/index.html) and [X25519MLKEM768 rustls API](https://docs.rs/rustls/0.23.45/rustls/crypto/aws_lc_rs/kx_group/static.X25519MLKEM768.html).
-
-## Enable
-
-1. Make a configuration backup; ensure that **TLS 1.3** is enabled.
-2. Open **Settings → TLS policy** and enable **Experimental post-quantum key exchange (PQC)**. Keep your current **cipher suite** list unless you have a specific reason to change it. The KEX group is enabled by the switch, **not** by adding X25519MLKEM768 to the cipher-suite textarea.
-3. Select **Validate, save and apply**. The TLS status reports the configured key-exchange groups, not the group used by each individual connection.
-4. Test HTTPS, HTTP/1.1, HTTP/2 and (if enabled) HTTP/3 on staging with a client that supports hybrid KEX, and with older clients that use classical KEX.
-
-`post_quantum` is stored on the global policy (the default is false):
-
-```json
-{"tls": {"policy": {"tls12": true, "tls13": true, "cipher_suites": [], "post_quantum": true}}}
-```
-
-This fragment illustrates the `tls` field; do not replace your full configuration with it.
-
-### Per-vhost behavior
-
-A Vhost **inherits** the global TLS policy by default. If it has an explicit `tls_policy` override, the override may disable PQC, but it cannot enable PQC while the global setting is disabled. Existing overrides that do not contain `post_quantum` are treated as `false`, even after you enable PQC globally. HTTP/3 Vhosts require their override, if any, to match the global TLS policy exactly, including PQC. Update or remove conflicting overrides before enabling PQC on H3.
-
-The administration TLS listener also uses the global policy when administration HTTPS is enabled. Open connections keep their negotiated keys; only **new handshakes** use the updated policy.
-
-## Test negotiated group
-
-Requires **OpenSSL 3.5+** with `X25519MLKEM768` support:
-
-```bash
-openssl s_client -connect example.com:443 -servername example.com \
-  -tls1_3 -groups X25519MLKEM768 -brief
-```
-
-Check for `Protocol version: TLSv1.3` and `Negotiated TLS1.3 group: X25519MLKEM768` (format depends on OpenSSL). Compare with a classic-only client using `-groups X25519` and test TLS 1.2 if it is enabled. For HTTP/3, also use an actual QUIC/H3 client and test with UDP blocked to verify fallback to H2/H1; `openssl s_client` does not test QUIC.
-
-If your TLS connection ends at a CDN, load balancer or TLS-terminating proxy, the test shows **that intermediary**, not RustProxy. To check RustProxy, connect to its listener directly while preserving SNI, and verify its actual certificate.
-
-## Caveats and rollback
-
-- Hybrid handshakes are larger and can hit MTU/middlebox limits, especially over QUIC. Measure connection errors, handshake latency, memory and CPU under expected load. Some legacy clients and devices may reject hybrid negotiation.
-- Enabling the switch changes the incoming TLS cryptographic provider to `aws-lc-rs`; some uncommon certificates, algorithms or hardware platforms may behave differently. `aws-lc-rs` requires a native C/C++ build toolchain; CMake may be needed for some build modes (non-FIPS commonly does not require it). The `ring` provider remains used where the switch is off and for existing outbound integrations.
-- A non-empty cipher-suite allowlist must contain suites supported by the selected provider; invalid combinations are rejected. PQC requires TLS 1.3.
-- For immediate rollback, **uncheck PQC in Settings → TLS policy and save**, and if necessary remove per-Vhost overrides that require PQC. Confirm new connections negotiate classic X25519. Existing sessions cannot renegotiate in place; close/reconnect them to retest. Keep the prior binary and backups available for a full rollback.
-- **Release verification:** the PQC implementation inherited from 0.34.9 still requires native Cargo build, TLS handshake, QUIC interoperability and production load acceptance. Verify the provisionally updated `Cargo.lock` with `cargo metadata --locked` (and refresh it with Cargo if needed), then run `cargo check --all-targets`, `cargo test --all-targets`, `cargo build --release`, and protocol tests before deployment. See the release changelog and source verification notes.

docs/TRANSPORT.md

@@ -18,8 +18,7 @@ Transport settings attach to **named listeners**, and a Vhost must select the ap
 - **For new QUIC connections only:** updates to `max_concurrent_bidistream`, `max_concurrent_unistream`, `max_idle_timeout` and reductions to `max_concurrent_connections` are applied without restart. Existing QUIC connections keep their negotiated limits. If no existing UDP socket matches the saved listener address, no H3 is advertised or accepted on the old address.
 - **Restart needed:** UDP listener enable/disable, changing IP/port/TLS properties, UDP socket buffer sizes, changes to H1/H2 listener settings and increasing `max_concurrent_connections` above the startup bound. The live listener status continues to show `restart_required` for these cases. After a restart, the new connection cap can take effect.
 
-
-### QUIC UDP socket buffers (0.34.3)
+### QUIC UDP socket buffers
 
 The HTTP/3 settings of each TLS listener include:
 
@@ -41,7 +40,6 @@ sudo ss -uapm | grep -A1 rust-proxy
 
 Read the `HTTP/3 UDP effective socket buffers` startup log message. `ss` should show approximately `rb4194304,tb4194304` (or larger if the OS adjusts values) when the requested size is granted. Changes to the OS maxima alone do not resize an existing socket; the configured buffer size is applied when a QUIC listener starts. High default/maxima for every program are not recommended as a substitute for explicit per-socket configuration. No specific throughput gain is guaranteed; compare H2/H3 at matched traffic before/after.
 
-
 ## Backend protocol selection
 
 | Backend mode | HTTPS origin | Plain HTTP origin |
@@ -55,10 +53,30 @@ WebSockets normally use HTTP/1.1 Upgrade. HTTP/2/HTTP/3 client requests can stil
 
 ## TLS and trust
 
-**Experimental (0.34.9):** Settings → TLS policy has a disabled-by-default **Post-quantum key exchange (PQC)** switch for hybrid TLS 1.3 X25519MLKEM768. This is a TLS key-exchange group, not a cipher suite. See [Post-quantum TLS](TLS_POST_QUANTUM.md) for prerequisites, fallback, HTTP/3 and rollback.
-
 Public HTTPS requires a correct certificate with hostname coverage. Administration TLS is separate. Backend `https://` encrypts traffic, but **upstream certificate verification is opt-in by default** in the current backend model; enable it and specify CA/name where needed. Private/loopback addresses and routing to a local RustProxy listener require explicit risk overrides.
 
+## Post-quantum TLS key exchange (optional)
+
+**Settings → TLS policy → Post-quantum key exchange** enables the hybrid TLS 1.3 group **X25519MLKEM768** (X25519 combined with ML-KEM-768) for incoming TLS. It is a key-exchange group, not a cipher suite: certificates and AES-GCM/ChaCha20-Poly1305 ciphers stay unchanged, and classic groups remain available as a fallback. The setting is off by default and requires TLS 1.3.
+
+When enabled, incoming TLS uses the `aws-lc-rs` provider; otherwise `ring` is used. Outbound connections (backends, ACME, update checks) are not affected. The setting is stored as `tls.policy.post_quantum`:
+
+```json
+{"tls": {"policy": {"tls12": true, "tls13": true, "cipher_suites": [], "post_quantum": true}}}
+```
+
+- Vhosts inherit the global policy. A per-Vhost `tls_policy` override can disable PQC but cannot enable it when the global switch is off. HTTP/3 Vhosts need an override that matches the global policy exactly.
+- Only new handshakes use the updated policy; open connections keep their keys.
+- Hybrid handshakes are larger and may hit MTU or middlebox limits, especially over QUIC; some legacy clients reject them.
+- Roll back by unchecking the switch and saving.
+
+Verify the negotiated group with OpenSSL 3.5 or newer, directly against the RustProxy listener (not a CDN in front of it):
+
+```bash
+openssl s_client -connect example.com:443 -servername example.com \
+  -tls1_3 -groups X25519MLKEM768 -brief
+```
+
 ## Timeouts, request bodies and streaming
 
 Idle/read/connect/response-header timeouts and backend connection pools are configurable. A response may stream after its headers have arrived; response-header metrics are not full-body duration. WebSockets and Streams have separate idle lifetimes and should be tested with the actual application. RustProxy rejects suspicious ambiguous request targets rather than normalizing them into potentially unsafe backend paths.

docs/TROUBLESHOOTING.md

@@ -54,8 +54,7 @@ rust-proxy --data-dir /var/lib/rustproxy config validate config.json
 
 Use **Logs → Live Logs** or the `--livelogs` CLI mode to correlate request IDs, Vhost/route/backend and status. Inspect **Stored Logs** for previously saved JSONL and selected low-level protocol failures.
 
-## HTTP/3 throughput and CPU diagnostics (0.34.3 source candidate)
-
+## HTTP/3 throughput and CPU diagnostics
 Do not assume that low H3 throughput is a CPU bottleneck from the overall VM percentage alone. A 50% VM reading can mean one saturated vCPU on a 2-vCPU machine. Quinn uses UDP datagrams, per-packet QUIC/TLS, congestion control and OS/virtual NIC offloads; H1/H2 over TCP can behave differently under the same load. Quinn enables UDP GSO by default when the platform supports it, but some VM/network stacks fall back to per-datagram sends.
 
 1. Run **four matched tests** against the same OpenSpeedTest/large streaming endpoint: direct backend H1, proxied HTTPS H2, proxied HTTPS H3 download, proxied H3 upload. Record client speed, per-process CPU, **per-thread** CPU, and whether the problem persists with a larger number of simultaneous clients.
@@ -69,27 +68,23 @@ Do not assume that low H3 throughput is a CPU bottleneck from the overall VM per
    ```
 
 3. If available, use `perf top -p "$(pidof rust-proxy)"` briefly during the benchmark, and inspect `%sys` / `%soft` in `mpstat -P ALL 1`. Check whether guest CPU has `aes` instruction support with `lscpu`.
-4. For the 0.34.3 source candidate, set `RUST_LOG=rust_proxy::http3=debug` in a **test** deployment and inspect `HTTP/3 bulk transfer transport snapshot` logs: `quic_lost_packets`, `quic_congestion_events`, `quic_rtt_ms`, `quic_cwnd_bytes`, `quic_path_mtu`, `quic_udp_tx_datagrams` and `quic_udp_tx_ios`. Those Quinn counters are **connection-wide cumulative snapshots**, not stream-specific deltas; compare differences for one isolated connection or across successive samples.
+4. Set `RUST_LOG=rust_proxy::http3=debug` in a **test** deployment and inspect `HTTP/3 bulk transfer transport snapshot` logs: `quic_lost_packets`, `quic_congestion_events`, `quic_rtt_ms`, `quic_cwnd_bytes`, `quic_path_mtu`, `quic_udp_tx_datagrams` and `quic_udp_tx_ios`. Those Quinn counters are **connection-wide cumulative snapshots**, not stream-specific deltas; compare differences for one isolated connection or across successive samples.
 
-5. Run `ss -uapm | grep -A1 rust-proxy` during a transfer; check `skmem rb`, `tb` and whether dropped-datagram `d` increments. RustProxy 0.34.3 defaults to 4 MiB per direction and logs the actual SO_RCVBUF/SO_SNDBUF effective values on bind. If Linux clamps them, inspect `sysctl net.core.rmem_max net.core.wmem_max`; saving new socket buffer targets in the panel requires a listener restart. See [HTTP transport](TRANSPORT.md#quic-udp-socket-buffers-0343).
+5. Run `ss -uapm | grep -A1 rust-proxy` during a transfer; check `skmem rb`, `tb` and whether dropped-datagram `d` increments. RustProxy defaults to 4 MiB per direction and logs the actual SO_RCVBUF/SO_SNDBUF effective values on bind. If Linux clamps them, inspect `sysctl net.core.rmem_max net.core.wmem_max`; saving new socket buffer targets in the panel requires a listener restart. See [HTTP transport](TRANSPORT.md#quic-udp-socket-buffers).
 
 A rising loss/retransmission count or shrinking congestion window with low CPU suggests packet pacing, network path, UDP buffer/offload or VM issues. With negligible loss and one saturated worker thread, investigate QUIC encryption, UDP send/receive and application streaming costs using `perf` before changing window sizes. HTTP/3 overhead can also affect large file transfers, uploads and long-lived H3 streams; speedtest is only one way to expose it. No throughput improvement is claimed without a production-equivalent QUIC benchmark.
 
-## Rollout gate for RustProxy 0.34.0
+## Release rollout checklist
 
-The latest source optimizations were **not all compiled or performance-tested** in the evidence supplied with this release. Before deploying:
+1. Verify HTTP/1.1, HTTPS, HTTP/2, HTTP/3 (if enabled), WebSockets and multi-backend failover against a real origin.
+2. Test private origin constraints, ACL/authentication, rate limits and protected cache content.
+3. Test Web Server static files, PHP-FPM, cache revalidation/invalidation and `sendfile=auto` if enabled.
+4. Exercise certificate renewal/reload and a backup **restore** on staging.
+5. Compare performance only with matched configurations and repeatable traffic; see [Performance](PERFORMANCE.md).
 
-1. Build using the declared Rust toolchain and run the project's available regression suite on the target platform.
-2. Verify HTTP/1.1, HTTPS, HTTP/2, HTTP/3 (if enabled), WebSockets and multi-backend failover with a real origin.
-3. Test private origin constraints, ACL/auth/CSRF, rate limits and protected cache content.
-4. Test Web Server static files, PHP-FPM, cache revalidation/invalidation and optional `sendfile=auto` only if enabled.
-5. Exercise certificate renewal/reload and backup **restore** on isolated staging.
-6. Compare performance only under matched configurations with controlled repeatable traffic; do **not** label 0.34.0 as faster merely because its source reduces internal work.
-
-For persistent problems, use the feature-specific guide in [Documentation](README.md) and preserve a redacted error example with environment/version and request ID.
-
-## OIDC central login (0.34.16)
+For persistent problems, use the feature-specific guide in [Documentation](README.md) and keep a redacted error example with the version and request ID.
 
+## OIDC central login
 - **Login does not start / 502:** verify that the HTTPS Issuer URL is the exact `issuer` from `/.well-known/openid-configuration`, including any path or trailing slash. RustProxy must resolve that address and connect to it with a trusted certificate, or you must configure an explicit internal backend origin for server-side OIDC requests. Discovery, authorization, token, UserInfo and JWKS endpoints must have the same HTTPS origin as the issuer.
 - **Redirect URI mismatch:** register the exact `https://APP-HOST/_rustproxy/oidc/callback` value with the identity provider. The callback hostname must be explicitly listed in the protected Vhost hosts and be accessed over HTTPS. Don't protect the IdP's own login Vhost using this OIDC setting.
 - **Invalid code, nonce or signature:** ensure that the provider issues an `id_token` using RS256 or ES256 and that a confidential client uses `client_secret_basic` with authorization code and PKCE S256. Repeated callback requests or overwritten browser transaction cookies are refused. A single browser login flow per protected host avoids cookie conflicts.

docs/VHOSTS.md

@@ -58,13 +58,15 @@ Sample documents in `examples/vhosts-private.json` and `examples/vhosts-balanced
 
 A backend's `preserve_host` option can retain the frontend authority when appropriate. HTTPS encryption alone does not guarantee verified backend identity: `tls_verify` is **false by default**. Enable verification and configure trusted CA/name for sensitive connections. Private, loopback and RustProxy-local listener targets require explicit security exceptions; do not point a public route to the admin listener. Read [Security](SECURITY.md).
 
-Connection reuse is bounded by configured idle-pool/recycle limits. 0.34.0 changes the default H1 upstream idle pool for newly configured Vhosts; previously saved explicit values remain. Configure timeouts to suit expected request and upload behavior; a slow origin may need more than the default response-header timeout.
+Connection reuse is bounded by configured idle-pool/recycle limits. The default H1 upstream idle pool applies to newly configured Vhosts; previously saved explicit values remain. Configure timeouts to suit expected request and upload behavior; a slow origin may need more than the default response-header timeout.
 
 ## Load balancing and health
 
 Backend pools support scheduling/weighting, standby members, draining and optional session affinity. Check the **Backends** status view for member health, recently observed HTTP response code, upstream protocol and resource usage. A reported status from normal traffic is not necessarily the result of a health probe.
 
 - Health monitoring may use TCP or HTTP checks with a path, Host, interval and thresholds. Avoid write endpoints; use a lightweight `/health` or equivalent.
+- **Health check port** (`health_check.port`) probes a different port than the one receiving traffic, like `check port` in HAProxy. Example: a backend serving traffic on `http://10.0.0.5:80` with a status endpoint on port `8079` uses `"health_check": {"mode": "http", "path": "/status", "port": 8079}`. The probe keeps the backend host, scheme, TLS settings and address restrictions; only the port changes. Leave it empty to probe the traffic port. The port can be set for the whole pool or per backend.
+- **Expected response text** (`health_check.expect_body`) makes an HTTP probe fail unless the first 64 KiB of the response body contain the given text, like `http-check expect string` in HAProxy. Use it for status pages that answer `200` even when the application is degraded, for example `"expect_body": "\"status\":\"ok\""`. Failed matches appear as `http_body` in backend health details.
 - Each member can override the pool health check or disable active/passive monitoring with `health_check_enabled=false`. Disabling checks treats the member as available, not proven healthy.
 - New monitored pools can temporarily have no eligible healthy member until rise checks succeed. A failed/incorrect check can produce `503` even if the process is reachable.
 - `backup` members act as fallbacks; `drain` prevents new normal selection while letting existing work complete within normal lifetimes. Explicitly pinned backends need careful policy review.

docs/WEB_SERVER.md

@@ -46,9 +46,8 @@ For PHP applications, the separate **PHP-FPM pool user** needs its own access to
 | **Symlinks** | `deny` by default; `inside_root` is an explicit less restrictive policy. |
 | **Hardening** | Optional checks for common sensitive/attack paths and removal of selected server-identifying headers; not a full WAF. |
 
-### Static delivery (`sendfile`) — 0.34.0
-
-In **Web Server → Edit service → Delivery**, `sendfile` supports `off` (default) and `auto`. On **Linux**, eligible full static **GET** responses of at least **64 KiB** over **unencrypted HTTP/1.1** may use a kernel file-transfer path. TLS, HTTP/2, HTTP/3, ranged or transformed content, compressed responses and active object-cache responses keep the normal streaming path. This transport choice should not invalidate otherwise compatible cached objects. It is an **unverified source candidate** in the provided archive: test it on the actual server before use and do not assume a measured speedup.
+### Static delivery (`sendfile`)
+In **Web Server → Edit service → Delivery**, `sendfile` supports `off` (default) and `auto`. On **Linux**, eligible full static **GET** responses of at least **64 KiB** over **unencrypted HTTP/1.1** may use a kernel file-transfer path. TLS, HTTP/2, HTTP/3, ranged or transformed content, compressed responses and active object-cache responses keep the normal streaming path. This transport choice should not invalidate otherwise compatible cached objects. Measure on your own hardware before enabling it; see [Performance](PERFORMANCE.md).
 
 ## Rewrites and application presets
 

grafana/README.md

@@ -12,7 +12,7 @@ latency, backend health/EWMA latency/active work, traffic, probe age and upstrea
 variables **Docker agent** and **Docker service** filter only this section, which keeps
 multi-agent installations readable without changing the ordinary vhost panels.
 
-The **0.33.0 Web Server** row adds header-ready request rates, status-class and
+The **Web Server** row adds header-ready request rates, status-class and
 static/PHP/other donut breakdowns, error percentage, response-header latency,
 payload byte rates, and downstream compression by codec. **PHP-FPM / FastCGI**
 adds request activity, RustProxy PHP permit capacity, and errors grouped by
@@ -29,7 +29,7 @@ classes, cache outcomes, capture-state gauges and configured-route traffic. Raw
 are intentionally absent from Prometheus labels.
 
 Import the JSON in Grafana and select a Prometheus datasource when prompted. The
-dashboard expects RustProxy 0.33.0 for its newest Web Server metric names
+dashboard expects a RustProxy version that exports the Web Server metric names
 (and also retains the older panels); a scrape interval around 15s is suitable.
 Collectors can be disabled in RustProxy settings; panels for disabled collectors
 will simply show no series.

install-debian13.sh

@@ -106,18 +106,14 @@ run_builder() {
 
 run_builder git clone --depth 1 "$REPO_URL" "$work/RustProxy"
 
-# The builder, not root, owns the toolchain. Never update a system-wide
-# apt-managed compiler or change the user's default rustup toolchain.
-# rustup is needed even when an older system-installed cargo exists.
+# The unprivileged builder owns its rustup toolchain; system compilers are left untouched.
 if ! run_builder bash -c 'command -v rustup >/dev/null 2>&1'; then
   echo "Installing rustup for build user: $builder"
   run_builder env RUSTUP_INIT_SKIP_PATH_CHECK=yes bash -c \
     'set -o pipefail; wget -qO- --https-only --secure-protocol=TLSv1_2 https://sh.rustup.rs | sh -s -- -y --profile minimal --no-modify-path --default-toolchain none'
 fi
 
-# Read the actual requirements from the checked-out sources, not a hardcoded
-# Rust version. The project may inherit rust-version from [workspace.package].
-# The channel from rust-toolchain.toml (or legacy rust-toolchain) takes precedence.
+# Read the required Rust version and channel from the checked-out sources.
 rust_settings=$(python3 - "$work/RustProxy" <<'PY_RUST'
 import pathlib
 import re
@@ -175,8 +171,7 @@ if [[ -z "$installed_rust" ]] || ! rust_version_at_least "$installed_rust" "$req
       run_builder rustup update "$build_toolchain"
       ;;
     *)
-      # A fixed toolchain must be respected. Do not silently override a pin
-      # that is older than the manifest's minimum supported Rust version.
+      # Never silently override a pinned toolchain older than rust-version.
       if [[ -n "$installed_rust" ]]; then
         echo "Pinned toolchain '$build_toolchain' is older than rust-version $required_rust; fix rust-toolchain.toml in the repository." >&2
         exit 1
@@ -193,8 +188,7 @@ fi
 run_builder rustup run "$build_toolchain" cargo --version
 echo "Building with Rust $installed_rust ($build_toolchain); required >= $required_rust."
 
-# Keep source builds reliable on small Debian VPSes. The repository release
-# profile may use LTO/codegen settings that can make rustc exceed RAM limits.
+# Lighter release settings keep builds within RAM limits on small VPSes.
 BUILD_JOBS="${RUSTPROXY_BUILD_JOBS:-1}"
 if ! [[ "$BUILD_JOBS" =~ ^[1-9][0-9]*$ ]]; then
   echo "RUSTPROXY_BUILD_JOBS must be a positive integer." >&2
@@ -230,8 +224,7 @@ if [[ "$MODE" == install ]]; then
     printf 'Administration is loopback-only by default. Use an SSH tunnel or enable Administration HTTPS before remote exposure.\n'
   fi
 else
-  # update.sh reads the saved installation record and therefore preserves the
-  # existing data directory, HTTP/TLS/admin binds and service account.
+  # update.sh preserves the saved data directory, binds and service account.
   bash update.sh \
     --binary target/release/rust-proxy \
     --prefix "$PREFIX"

integrations/opnsense-acme/opnsense-rustproxy-cert-deploy.sh

@@ -1,8 +1,7 @@
 #!/bin/sh
 set -eu
 
-# Deploy an externally issued OPNsense/os-acme-client certificate to RustProxy 0.23.x.
-# Configuration is kept separately so the API token does not need to live in this script.
+# Deploy an OPNsense os-acme-client certificate to RustProxy; settings live in a separate file.
 
 CONFIG_FILE="${RUSTPROXY_ACME_CONFIG:-/usr/local/etc/rustproxy-acme.conf}"
 
@@ -62,10 +61,7 @@ KEY_PUB=$(
 "$OPENSSL" x509 -in "$CERT_FILE" -checkend 0 -noout >/dev/null 2>&1 \
     || fail "Certificate is already expired"
 
-# Always reconcile with RustProxy. The deploy endpoint is idempotent: an identical
-# RustProxy-owned generation is a server-side no-op, while a missing certificate id
-# is created and a changed manual certificate is rotated atomically. This avoids
-# trusting stale local state when the RustProxy configuration was changed separately.
+# The deploy endpoint is idempotent, so always reconcile instead of trusting local state.
 
 umask 077
 TMP_JSON=$(mktemp "${TMPDIR:-/tmp}/rustproxy-cert.XXXXXX") || fail "mktemp failed"
@@ -73,8 +69,7 @@ TMP_CURL=$(mktemp "${TMPDIR:-/tmp}/rustproxy-curl.XXXXXX") || { rm -f "$TMP_JSON
 TMP_RESPONSE=$(mktemp "${TMPDIR:-/tmp}/rustproxy-response.XXXXXX") || { rm -f "$TMP_JSON" "$TMP_CURL"; fail "mktemp failed"; }
 trap 'rm -f "$TMP_JSON" "$TMP_CURL" "$TMP_RESPONSE"' EXIT HUP INT TERM
 
-# PEM is line-oriented Base64 plus BEGIN/END markers. Escape it as a JSON string
-# without needing jq/python on OPNsense.
+# Escape PEM as a JSON string without jq/python.
 pem_json() {
     awk '{
         gsub(/\\/, "\\\\");
@@ -114,8 +109,7 @@ if [ -n "${RUSTPROXY_CACERT:-}" ]; then
     printf 'cacert = "%s"\n' "$RUSTPROXY_CACERT" >> "$TMP_CURL"
 fi
 
-# Optional curl --resolve equivalent, e.g. rustproxy.lan:8443:10.10.10.20.
-# This lets the URL use the certificate DNS name while traffic goes to a fixed LAN IP.
+# Optional curl --resolve value, e.g. rustproxy.lan:8443:10.10.10.20.
 if [ -n "${RUSTPROXY_RESOLVE:-}" ]; then
     printf 'resolve = "%s"\n' "$RUSTPROXY_RESOLVE" >> "$TMP_CURL"
 fi

integrations/routeros-oci-build/README.md

@@ -77,10 +77,10 @@ ENV_FILE=integrations/routeros-oci-build/.env \
   bash integrations/routeros-oci-build/build-routeros-oci.sh push
 ```
 
-With RustProxy version `0.25.0` and the defaults this publishes:
+For example, with RustProxy version `0.35.3` and the defaults this publishes:
 
 ```text
-zot.example.net/network/rustproxy:0.25.0
+zot.example.net/network/rustproxy:0.35.3
 zot.example.net/network/rustproxy:latest
 zot.example.net/network/rustproxy:routeros
 ```

integrations/routeros-oci-build/build-routeros-oci.sh

@@ -1,9 +1,7 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-# RustProxy multi-arch OCI builder for RouterOS.
-# Rust compilation runs on BUILDPLATFORM. Target binaries are cross-compiled,
-# so rustc/cargo do not run through QEMU for arm64 builds.
+# RustProxy multi-arch OCI builder for RouterOS (cross-compiled, no QEMU rustc).
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
@@ -74,8 +72,7 @@ VERSION="$(awk '
 ' "$PROJECT_ROOT/Cargo.toml")"
 [[ -n "$VERSION" ]] || { echo "Cannot determine package version from Cargo.toml" >&2; exit 1; }
 
-# Registry/image. Preferred format: REGISTRY + IMAGE_NAME.
-# OCI_IMAGE is kept as a compatible shorthand.
+# Image: REGISTRY + IMAGE_NAME (or OCI_IMAGE shorthand).
 if [[ -n "${OCI_IMAGE:-}" ]]; then
   IMAGE_REPO="${OCI_IMAGE%/}"
   REGISTRY="${OCI_REGISTRY:-${IMAGE_REPO%%/*}}"

langs/en_US.json

@@ -457,6 +457,9 @@
     "vhHttp": "HTTP status + response time",
     "vhHealthPath": "HTTP check path",
     "vhHealthHost": "HTTP Host override (optional)",
+    "vhHealthPort": "Health check port (optional)",
+    "vhHealthPortPlaceholder": "Backend port",
+    "vhHealthExpectBody": "Expected text in HTTP response (optional)",
     "vhInterval": "Interval (ms)",
     "vhTimeout": "Timeout (ms)",
     "vhSlow": "Slow threshold (ms; 0 = off)",
@@ -464,7 +467,7 @@
     "vhRise": "Successes before recovery",
     "vhStatusMin": "Minimum HTTP status",
     "vhStatusMax": "Maximum HTTP status",
-    "vhHealthNote": "HTTP probes use HTTP/1.1 and measure time to headers, not body duration. When Host override is blank, RustProxy automatically uses the first exact DNS hostname of the vhost; if none exists it falls back to the backend host. Use TCP for h2c-only services. New backends wait for successful probes. Active health is independent from passive health.",
+    "vhHealthNote": "HTTP probes use HTTP/1.1 and measure time to headers, not body duration. When Host override is blank, RustProxy automatically uses the first exact DNS hostname of the vhost; if none exists it falls back to the backend host. Use TCP for h2c-only services. New backends wait for successful probes. Active health is independent from passive health. Health check port probes a different port than traffic (for example a status port 8079 for a backend on port 80); host, TLS and address restrictions stay the same. Expected text marks the backend as down unless the first 64 KiB of the HTTP probe response contain it.",
     "vhPassiveHealth": "Passive Backend Health",
     "vhPassiveEnabled": "Allow normal request failures to mark a backend unhealthy",
     "vhPassiveHelp": "Off by default. Errors are still logged and counted, but normal user traffic cannot change backend health until this is explicitly enabled.",
@@ -942,6 +945,7 @@
     "docsWrites": "Enable write operations",
     "docsWriteConfirm": "This sends a real change to RustProxy. Continue?",
     "docsExpired": "Session ended. Sign in again.",
+    "docsImage": "Screenshot",
     "docsError": "Documentation could not be loaded.",
     "docsAccount": "Signed in as",
     "docsReadOnly": "Read-only execution by default. SSE streams and login/setup are not executed here.",
@@ -2250,11 +2254,21 @@
     "about": "About",
     "aboutTitle": "About RustProxy",
     "aboutAuthor": "Author",
+    "aboutLicenseText": "Full license text",
+    "aboutDocumentation": "Documentation and API reference",
+    "aboutLicensePointWarranty": "The software is provided without any warranty.",
+    "aboutLicensePointNetwork": "If you run a modified version as a network service, its users must be able to obtain the modified source code.",
+    "aboutLicensePointShare": "Distributed copies and modified versions must stay under the same license and include their source code.",
+    "aboutLicensePointUse": "Use it for any purpose, including commercial deployments.",
+    "aboutLicenseTitle": "License summary",
+    "aboutSpdx": "SPDX identifier",
+    "aboutCopyright": "Copyright",
+    "aboutTagline": "Reverse proxy, web server, certificate manager and traffic monitor in a single service with a built-in administration panel.",
     "aboutLicense": "License",
-    "aboutLicenseValue": "GNU AGPL v3",
-    "aboutOpenSourceText": "RustProxy is an open-source project. Its source code is publicly available for inspection, development and community contribution.",
-    "aboutRepository": "Official source repository",
-    "aboutPackagesRepository": "Official package repository",
+    "aboutLicenseValue": "GNU AGPL v3.0 or later",
+    "aboutOpenSourceText": "RustProxy is free and open-source software. You may use, study, modify and redistribute it under the terms of the GNU Affero General Public License, version 3 or any later version.",
+    "aboutRepository": "Source code",
+    "aboutPackagesRepository": "Website and packages",
     "aboutPythonRuntime": "Certificate Python runtime",
     "runtimePython": "Python",
     "runtimePip": "pip",
@@ -2758,6 +2772,22 @@
     "overviewExtraCacheMissRateDetail": "Rate of cache misses.",
     "overviewExtraBackendActive": "In-flight backend requests",
     "overviewExtraBackendActiveDetail": "Current HTTP upstream requests across backends.",
+    "overviewExtraBackendsHealthy": "Healthy backends",
+    "overviewExtraBackendsHealthyDescription": "Monitored backend members that currently pass health checks, with the names of failing members.",
+    "overviewExtraBackendsNone": "No monitored backends",
+    "overviewExtraBackendsDown": "Down",
+    "overviewExtraBackendsAllUp": "All monitored backends are up",
+    "overviewExtraErrorShare": "Error share",
+    "overviewExtraErrorShareDescription": "Share of HTTP requests that ended with an error in the last sampling interval.",
+    "overviewExtraErrorShareDetail": "Errors / requests",
+    "overviewExtraRejectedRate": "Rejected by limits / s",
+    "overviewExtraRejectedRateDescription": "Requests and connections rejected by concurrency limits. Sustained values suggest raising max-connections or max-inflight.",
+    "overviewExtraRejectedDetail": "Total requests / connections",
+    "overviewExtraCertExpiry": "Nearest certificate expiry",
+    "overviewExtraCertExpiryDescription": "Days until the earliest installed certificate expires; the bar is full at 90 days or more.",
+    "overviewExtraCertNone": "No certificates installed",
+    "overviewExtraCertCount": "certificates",
+    "overviewExtraDaysUnit": "days",
     "overviewWideProtocolRates": "HTTP/1.1 · HTTP/2 · HTTP/3 traffic",
     "overviewWideProtocolRatesDetail": "Requests per second by frontend protocol.",
     "overviewWideCpu": "System and process CPU",

langs/pl_pl.json

@@ -457,6 +457,9 @@
     "vhHttp": "Status HTTP + czas odpowiedzi",
     "vhHealthPath": "Ścieżka testu HTTP",
     "vhHealthHost": "Własny Host testu HTTP (opcjonalny)",
+    "vhHealthPort": "Port testu zdrowia (opcjonalny)",
+    "vhHealthPortPlaceholder": "Port backendu",
+    "vhHealthExpectBody": "Oczekiwany tekst w odpowiedzi HTTP (opcjonalny)",
     "vhInterval": "Interwał (ms)",
     "vhTimeout": "Limit czasu (ms)",
     "vhSlow": "Próg wolnej odpowiedzi (ms; 0 = wył.)",
@@ -464,7 +467,7 @@
     "vhRise": "Sukcesy przed przywróceniem",
     "vhStatusMin": "Minimalny status HTTP",
     "vhStatusMax": "Maksymalny status HTTP",
-    "vhHealthNote": "Sondy HTTP używają HTTP/1.1 i mierzą czas do nagłówków, nie czas całego body. Gdy pole Host jest puste, RustProxy automatycznie używa pierwszej dokładnej domeny DNS vhosta; jeśli jej nie ma, używa hosta backendu. Dla usług tylko h2c użyj TCP. Nowe backendy czekają na udaną sondę. Active health jest niezależny od passive health.",
+    "vhHealthNote": "Sondy HTTP używają HTTP/1.1 i mierzą czas do nagłówków, nie czas całego body. Gdy pole Host jest puste, RustProxy automatycznie używa pierwszej dokładnej domeny DNS vhosta; jeśli jej nie ma, używa hosta backendu. Dla usług tylko h2c użyj TCP. Nowe backendy czekają na udaną sondę. Active health jest niezależny od passive health. Port testu zdrowia pozwala sprawdzać inny port niż ruch (np. port statusu 8079 dla backendu na porcie 80); host, TLS i ograniczenia adresów pozostają te same. Oczekiwany tekst oznacza backend jako niedostępny, jeśli pierwsze 64 KiB odpowiedzi testu HTTP go nie zawiera.",
     "vhPassiveHealth": "Pasywne zdrowie backendu",
     "vhPassiveEnabled": "Pozwól, aby błędy zwykłych requestów oznaczały backend jako niedostępny",
     "vhPassiveHelp": "Domyślnie wyłączone. Błędy nadal są logowane i zliczane, ale zwykły ruch użytkowników nie zmienia stanu backendu bez świadomego włączenia.",
@@ -942,6 +945,7 @@
     "docsWrites": "Włącz operacje zapisu",
     "docsWriteConfirm": "Ta operacja naprawdę zmieni RustProxy. Kontynuować?",
     "docsExpired": "Sesja wygasła. Zaloguj się ponownie.",
+    "docsImage": "Zrzut ekranu",
     "docsError": "Nie udało się wczytać dokumentacji.",
     "docsAccount": "Zalogowano jako",
     "docsReadOnly": "Domyślnie wykonywane są tylko odczyty. Strumienie SSE oraz logowanie i setup nie są tu uruchamiane.",
@@ -2250,11 +2254,21 @@
     "about": "O projekcie",
     "aboutTitle": "O RustProxy",
     "aboutAuthor": "Autor",
+    "aboutLicenseText": "Pełny tekst licencji",
+    "aboutDocumentation": "Dokumentacja i dokumentacja API",
+    "aboutLicensePointWarranty": "Oprogramowanie jest dostarczane bez jakiejkolwiek gwarancji.",
+    "aboutLicensePointNetwork": "Jeśli udostępniasz zmodyfikowaną wersję jako usługę sieciową, jej użytkownicy muszą mieć dostęp do zmodyfikowanego kodu źródłowego.",
+    "aboutLicensePointShare": "Rozpowszechniane kopie i wersje zmodyfikowane muszą pozostać na tej samej licencji i zawierać kod źródłowy.",
+    "aboutLicensePointUse": "Możesz go używać w dowolnym celu, także komercyjnie.",
+    "aboutLicenseTitle": "Licencja w skrócie",
+    "aboutSpdx": "Identyfikator SPDX",
+    "aboutCopyright": "Prawa autorskie",
+    "aboutTagline": "Reverse proxy, serwer WWW, menedżer certyfikatów i monitor ruchu w jednej usłudze z wbudowanym panelem administracyjnym.",
     "aboutLicense": "Licencja",
-    "aboutLicenseValue": "GNU AGPL v3",
-    "aboutOpenSourceText": "RustProxy jest projektem open source. Kod źródłowy jest publicznie dostępny do wglądu, rozwoju i współtworzenia.",
-    "aboutRepository": "Oficjalne repozytorium źródłowe",
-    "aboutPackagesRepository": "Oficjalne repozytorium pakietów",
+    "aboutLicenseValue": "GNU AGPL v3.0 lub nowsza",
+    "aboutOpenSourceText": "RustProxy jest wolnym oprogramowaniem o otwartym kodzie. Możesz go używać, analizować, modyfikować i rozpowszechniać na warunkach licencji GNU Affero General Public License w wersji 3 lub dowolnej późniejszej.",
+    "aboutRepository": "Kod źródłowy",
+    "aboutPackagesRepository": "Strona i pakiety",
     "aboutPythonRuntime": "Środowisko Python certyfikatów",
     "runtimePython": "Python",
     "runtimePip": "pip",
@@ -2758,6 +2772,22 @@
     "overviewExtraCacheMissRateDetail": "Tempo nietrafień w cache.",
     "overviewExtraBackendActive": "Żądania do backendów",
     "overviewExtraBackendActiveDetail": "Suma aktualnych żądań do backendów HTTP.",
+    "overviewExtraBackendsHealthy": "Sprawne backendy",
+    "overviewExtraBackendsHealthyDescription": "Monitorowane backendy, które obecnie przechodzą testy zdrowia, wraz z nazwami niedziałających.",
+    "overviewExtraBackendsNone": "Brak monitorowanych backendów",
+    "overviewExtraBackendsDown": "Niedostępne",
+    "overviewExtraBackendsAllUp": "Wszystkie monitorowane backendy działają",
+    "overviewExtraErrorShare": "Udział błędów",
+    "overviewExtraErrorShareDescription": "Odsetek żądań HTTP zakończonych błędem w ostatnim interwale próbkowania.",
+    "overviewExtraErrorShareDetail": "Błędy / żądania",
+    "overviewExtraRejectedRate": "Odrzucone przez limity / s",
+    "overviewExtraRejectedRateDescription": "Żądania i połączenia odrzucone przez limity współbieżności. Stałe wartości oznaczają, że warto podnieść max-connections lub max-inflight.",
+    "overviewExtraRejectedDetail": "Łącznie żądania / połączenia",
+    "overviewExtraCertExpiry": "Najbliższe wygaśnięcie certyfikatu",
+    "overviewExtraCertExpiryDescription": "Dni do wygaśnięcia najwcześniej kończącego się certyfikatu; pasek jest pełny przy 90 dniach lub więcej.",
+    "overviewExtraCertNone": "Brak zainstalowanych certyfikatów",
+    "overviewExtraCertCount": "certyfikatów",
+    "overviewExtraDaysUnit": "dni",
     "overviewWideProtocolRates": "Ruch HTTP/1.1 · HTTP/2 · HTTP/3",
     "overviewWideProtocolRatesDetail": "Tempo żądań według protokołu frontendu.",
     "overviewWideCpu": "CPU systemu i procesu",

make_zip.py

@@ -15,7 +15,7 @@ ROOT = Path(__file__).resolve().parent
 MANAGED = [
     'src', 'tests', 'scripts', 'tools', 'integrations', 'nagios', 'docker-agent', 'migrations', 'examples', 'docs', 'langs', 'deploy', 'grafana',
     '.github', '.cargo', 'Cargo.toml', 'Cargo.lock', 'build.rs', 'rust-toolchain.toml', 'UPDATE_CHECK.toml',
-    'dev.sh', 'upgrade.sh', 'install.sh', 'install-debian13.sh', 'update.sh', 'README.md', 'ROADMAP.md',
+    'dev.sh', 'upgrade.sh', 'install.sh', 'install-debian13.sh', 'update.sh', 'README.md', 'LICENSE',
     'CHANGELOG.md', 'AGENTS.md', '.env.example', '.gitignore', '.dockerignore',
     'Dockerfile', 'make_zip.py',
 ]
@@ -39,9 +39,7 @@ def files() -> list[Path]:
             rel = file.relative_to(ROOT)
             if any(part in EXCLUDED for part in rel.parts) or file.suffix in ('.pyc', '.pyo', '.zip'):
                 continue
-            # Never ship local environment files from recursively managed trees.
-            # Explicit templates such as .env.example remain safe because they are
-            # named in MANAGED and do not have the exact basename `.env`.
+            # Never ship local .env files; templates such as .env.example are listed explicitly.
             if rel.name == '.env':
                 continue
             if rel.as_posix() == 'docker-agent/docker-agent':

scripts/audit_css_usage.py

@@ -99,9 +99,7 @@ def structural_inventory(paths: list[Path]) -> dict:
         families = [tuple(sorted({family for selector in entry['selectors']
                                   for family in VENDOR_SELECTOR.findall(selector)}))
                     for entry in entries]
-        # A browser can reject an entire comma-separated selector list when it
-        # contains another engine's pseudo-element. Keep one body per compatible
-        # family, while still rejecting copies within the same family.
+        # Vendor pseudo-element families legitimately repeat one rule body.
         vendor_only = (any(families) and all(len(family) <= 1 for family in families)
                        and len(families) == len(set(families)))
         repeated_bodies.append({'scope': list(scope), 'rules': entries,

scripts/build/swagger_assets.py

@@ -33,7 +33,7 @@ ASSETS = {
 LICENSE_MEMBERS = ("LICENSE", "NOTICE", "dist/swagger-ui-bundle.js.LICENSE.txt")
 HELP = ("Install Python 3.10+ and allow HTTPS access to github.com/codeload.github.com, "
         "or set SWAGGER_UI_DOWNLOAD_URL=file:///absolute/path/swagger-ui-5.33.1.zip "
-        "to a reviewed copy of the same tag archive. See docs/API_ACCESS.md.")
+        "to a reviewed copy of the same tag archive. See docs/INSTALL.md.")
 
 
 class AssetError(ValueError):

scripts/deploy/deploy_runtime.py

@@ -211,9 +211,7 @@ def admin_health_endpoint(record: dict) -> tuple[str, bool, str]:
                 if isinstance(values, list):
                     allowed_hosts = [str(value).strip() for value in values if str(value).strip()]
     except (OSError, sqlite3.Error, ValueError, TypeError, json.JSONDecodeError):
-        # Old releases and damaged/uninitialized databases used the startup HTTP
-        # listener. The real startup diagnostics remain authoritative if this
-        # compatibility read cannot resolve persisted settings.
+        # Fall back to the startup listener for old or uninitialized databases.
         pass
 
     host, port = (raw[1:].split(']:') if raw.startswith('[') else raw.rsplit(':', 1))
@@ -234,9 +232,7 @@ def healthy(record: dict, version: str, attempts: int = 30) -> bool:
     host, port = (raw[1:].split(']:') if raw.startswith('[') else raw.rsplit(':', 1))
     for _ in range(attempts):
         if tls:
-            # Local deployment health is process identity/liveness, not PKI validation.
-            # The configured admin certificate may intentionally be self-signed or for
-            # a DNS name while we connect to the local socket.
+            # Local liveness probe only; the admin certificate may be self-signed.
             conn = http.client.HTTPSConnection(host, int(port), timeout=2, context=ssl._create_unverified_context())
         else:
             conn = http.client.HTTPConnection(host, int(port), timeout=2)
@@ -362,14 +358,12 @@ def update(record: dict, binary: Path, sha: str, start: bool, refresh_geoip: boo
         # Repair missing or stale installer-owned shell setup on upgrades.
         install_shell_path(prefix)
         check_shell_path(prefix)
-        # Repair stale root:root/0700 metadata before staging/network work and before
-        # stopping the currently healthy service.
+        # Repair stale ownership before stopping the running service.
         ensure_service_data_access(data, account)
         release, version = stage(binary, prefix, record['user'], sha)
         geoip_names: list[str] = []
         if refresh_geoip:
-            # Keep the same lock for checksum/download staging and publication. The
-            # runtime worker uses this file too, so manual upgrades cannot race it.
+            # Shared lock with the runtime worker prevents concurrent upgrades.
             geoip_lock_fd = acquire_geoip_update_lock(data, account.pw_uid, account.pw_gid)
             geoip_stage, geoip_names = prepare_geoip_update(data, prefix)
         active = subprocess.run(['systemctl', 'is-active', '--quiet', SERVICE], check=False, stdout=subprocess.DEVNULL).returncode == 0

scripts/deploy/upgrade.py

@@ -13,7 +13,7 @@ from scripts.version import project_version
 
 MANAGED = ["build.rs", "langs", "deploy", "debian", "grafana", "make_zip.py", "src", "tests", "scripts", "tools", "integrations", "nagios", "docker-agent", "migrations", "examples", "docs", ".github", ".cargo",
            "Cargo.toml", "Cargo.lock", "rust-toolchain.toml", "dev.sh", "upgrade.sh", "install.sh", "update.sh",
-           "README.md", "ROADMAP.md", "CHANGELOG.md", "AGENTS.md", "SHA256SUMS",
+           "README.md", "LICENSE", "CHANGELOG.md", "AGENTS.md", "SHA256SUMS",
            ".env.example", ".gitignore"]
 
 
@@ -72,12 +72,7 @@ def upgrade(source: Path, target: Path, *, stopped: bool, data_dir: Path | None
                 elif new.is_file():
                     installed.append(name)
                     shutil.copy2(new, old)
-            # Old renewal observations were diagnostic scheduler state only;
-            # certificates, accounts and renewal profiles live elsewhere. 0.19.1
-            # has no runtime JSON importer. Validate the obsolete sidecar now,
-            # write the completed source-upgrade manifest, then remove the file
-            # as the final fallible operation. SQLite observations are rebuilt by
-            # the normal renewal scheduler. No second legacy copy is retained.
+            # Obsolete renewal sidecar: validate, record the manifest, then remove it last.
             runtime_data = (data_dir or (target / "data")).resolve()
             certs_dir = runtime_data / "certs"
             if certs_dir.is_symlink():

scripts/preflight.py

@@ -132,7 +132,7 @@ def check(root: Path, repair_known: bool = False) -> list[str]:
         flat = module.parent.with_suffix(".rs")
         if flat.is_file():
             raise ValueError(f"Conflicting Rust modules: {flat.relative_to(root)} and {module.relative_to(root)}")
-    for path in ["src/auth/mod.rs", "src/auth/store.rs", "src/backup/snapshot.rs", "src/upstream.rs", "src/tls.rs", "src/config/internal_routing.rs", "src/proxy/websocket.rs", "src/proxy/error_fallback.rs", "src/cache/mod.rs", "src/cache/model.rs", "src/cache/lifecycle.rs", "src/cache/cold.rs", "src/cache/dashboard.rs", "src/cache/tickets.rs", "src/cache/lookup.rs", "src/cache/policy.rs", "src/cache/fill.rs", "src/cache/tests.rs", "src/settings.rs", "src/compression/mod.rs", "src/diagnostics.rs", "src/traffic/mod.rs", "src/system_stats/mod.rs", "src/system_stats/linux/mod.rs", "src/vhost.rs", "src/vhost/error_fallback.rs", "src/web_server/mod.rs", "src/web_server/config.rs", "src/web_server/filesystem.rs", "src/web_server/security.rs", "src/web_server/response.rs", "src/web_server/request.rs", "src/web_server/routing.rs", "src/web_server/fastcgi.rs", "src/web_server/htaccess.rs", "src/web_server/serve.rs", "src/web_server/tests.rs", "src/balance.rs", "src/security/mod.rs", "src/admin/web/vhosts/core.js", "src/admin/web/vhosts/rates.js", "src/admin/web/vhosts/health.js", "src/admin/web/vhosts/editor.js", "src/admin/web/vhosts/render.js", "src/admin/web/web-server.js", "src/admin/web/streams.js", "src/admin/web/host404.js", "src/admin/web/app/core.js", "src/admin/web/app/session-resume.js", "src/admin/web/app/preferences.js", "src/admin/web/app/config-history.js", "src/admin/web/app/runtime.js", "src/admin/web/app/settings.js", "src/admin/web/management.js", "src/admin/web/drafts.js", "src/pages/mod.rs", "tools/dev/mock_server.py", "tools/dev/mock_auth.py", "src/forwarding.rs", "src/tinyauth/mod.rs", "src/http3.rs", "src/stream.rs", "src/admin/web/integrations.js", "src/admin/web/traffic-panel.js", "src/prometheus.rs", "src/admin/web/settings.js", "src/admin/web/docker.js", "src/docker.rs", "docker-agent/main.go", "docker-agent/model.go", "docker-agent/docker.go", "docker-agent/network.go", "docker-agent/certificate.go", "docker-agent/server.go", "docker-agent/main_test.go", "docker-agent/rustproxy-docker-agent.service", "docker-agent/install.sh", "docs/DOCKER_DISCOVERY.md", "docs/WEB_SERVER.md", "docs/PHP_FPM.md", "docs/README.md", "CHANGELOG.md", "ROADMAP.md", "scripts/runtime/acme_provider.py", "src/basic_auth/mod.rs", "scripts/deploy/deploy.py", "scripts/deploy/deploy_core.py", "scripts/deploy/deploy_runtime.py", "scripts/migration/migrate_npm.py", "scripts/migration/migrate_npm_core.py", "scripts/migration/migrate_npm_api.py", "docs/MIGRATION.md", "docs/STREAMS.md", "install.sh", "install-debian13.sh", "update.sh", "build.rs", "scripts/build/swagger_assets.py", "src/admin/documentation.rs", "src/admin/openapi.json", "langs/en_US.json", "langs/pl_pl.json", "Dockerfile", ".dockerignore", "docs/CONTAINER.md", "docs/MONITORING.md", "docs/CUSTOM_LOCATIONS.md", "grafana/rustproxy-overview.json"]:
+    for path in ["src/auth/mod.rs", "src/auth/store.rs", "src/backup/snapshot.rs", "src/upstream.rs", "src/tls.rs", "src/config/internal_routing.rs", "src/proxy/websocket.rs", "src/proxy/error_fallback.rs", "src/cache/mod.rs", "src/cache/model.rs", "src/cache/lifecycle.rs", "src/cache/cold.rs", "src/cache/dashboard.rs", "src/cache/tickets.rs", "src/cache/lookup.rs", "src/cache/policy.rs", "src/cache/fill.rs", "src/cache/tests.rs", "src/settings.rs", "src/compression/mod.rs", "src/diagnostics.rs", "src/traffic/mod.rs", "src/system_stats/mod.rs", "src/system_stats/linux/mod.rs", "src/vhost.rs", "src/vhost/error_fallback.rs", "src/web_server/mod.rs", "src/web_server/config.rs", "src/web_server/filesystem.rs", "src/web_server/security.rs", "src/web_server/response.rs", "src/web_server/request.rs", "src/web_server/routing.rs", "src/web_server/fastcgi.rs", "src/web_server/htaccess.rs", "src/web_server/serve.rs", "src/web_server/tests.rs", "src/balance.rs", "src/security/mod.rs", "src/admin/web/vhosts/core.js", "src/admin/web/vhosts/rates.js", "src/admin/web/vhosts/health.js", "src/admin/web/vhosts/editor.js", "src/admin/web/vhosts/render.js", "src/admin/web/web-server.js", "src/admin/web/streams.js", "src/admin/web/host404.js", "src/admin/web/app/core.js", "src/admin/web/app/session-resume.js", "src/admin/web/app/preferences.js", "src/admin/web/app/config-history.js", "src/admin/web/app/runtime.js", "src/admin/web/app/settings.js", "src/admin/web/management.js", "src/admin/web/drafts.js", "src/pages/mod.rs", "tools/dev/mock_server.py", "tools/dev/mock_auth.py", "src/forwarding.rs", "src/tinyauth/mod.rs", "src/http3.rs", "src/stream.rs", "src/admin/web/integrations.js", "src/admin/web/traffic-panel.js", "src/prometheus.rs", "src/admin/web/settings.js", "src/admin/web/docker.js", "src/docker.rs", "docker-agent/main.go", "docker-agent/model.go", "docker-agent/docker.go", "docker-agent/network.go", "docker-agent/certificate.go", "docker-agent/server.go", "docker-agent/main_test.go", "docker-agent/rustproxy-docker-agent.service", "docker-agent/install.sh", "docs/DOCKER_DISCOVERY.md", "docs/WEB_SERVER.md", "docs/PHP_FPM.md", "docs/README.md", "CHANGELOG.md", "LICENSE", "docs/FEATURES.md", "docs/PERFORMANCE.md", "scripts/runtime/acme_provider.py", "src/basic_auth/mod.rs", "scripts/deploy/deploy.py", "scripts/deploy/deploy_core.py", "scripts/deploy/deploy_runtime.py", "scripts/migration/migrate_npm.py", "scripts/migration/migrate_npm_core.py", "scripts/migration/migrate_npm_api.py", "docs/MIGRATION.md", "docs/STREAMS.md", "install.sh", "install-debian13.sh", "update.sh", "build.rs", "scripts/build/swagger_assets.py", "src/admin/documentation.rs", "src/admin/openapi.json", "langs/en_US.json", "langs/pl_pl.json", "Dockerfile", ".dockerignore", "docs/INSTALL.md", "docs/MONITORING.md", "docs/CUSTOM_LOCATIONS.md", "grafana/rustproxy-overview.json"]:
         if not (root / path).is_file():
             raise ValueError(f"Incomplete RustProxy 0.34.2 source tree: missing {path}")
     for path in ("scripts/__init__.py", "scripts/build/__init__.py", "scripts/build/panel_css.py", "src/admin/web/css/manifest.json"):

scripts/runtime/acme_provider.py

@@ -39,8 +39,7 @@ PROVIDER_FIELDS = {
 
 
 def credential(value: object) -> str:
-    # All supported API keys are ASCII tokens. Reject whitespace/newlines and
-    # INI metacharacters; provider input must never add options or sections.
+    # API keys are ASCII tokens; reject anything that could inject INI content.
     if not isinstance(value, str) or not re.fullmatch(r"[A-Za-z0-9_./+\-=]{8,4096}", value):
         raise AcmeError("acme.invalid_api_credential")
     return value
@@ -196,8 +195,7 @@ def certbot_command(value: dict, work: Path, credential_file: Path, command_pref
 
 
 def read_generated(work: Path, name: str) -> bytes:
-    # Certbot live entries are symlinks into its private archive. Resolve only
-    # within that archive, then open without following a second/final symlink.
+    # Resolve live symlinks only inside Certbot's archive.
     archive = (work / "config" / "archive").resolve(strict=True)
     path = (work / "config" / "live" / "rustproxy" / name).resolve(strict=True)
     if not path.is_relative_to(archive):
@@ -220,8 +218,7 @@ def issue(raw: dict, certificate_directory: Path, executable: str | None = None)
     private_directory(certificate_directory)
     root = certificate_directory / "acme"
     private_directory(root)
-    # Each identity/environment has isolated CA accounts, DNS credentials and
-    # Certbot lineages. Both profile IDs and directory paths are operator-owned.
+    # Each profile has isolated CA accounts, credentials and lineages.
     suffix = "" if value["provider"] == "rfc2136" else "-" + value["provider"]
     work = root / (value["environment"] + "-" + value["certificate_id"] + suffix)
     private_directory(work)
@@ -236,9 +233,7 @@ def issue(raw: dict, certificate_directory: Path, executable: str | None = None)
             raise AcmeError("acme.profile_busy") from None
         for folder in ["config", "work", "logs"]:
             private_directory(work / folder)
-        # DNS credentials are supplied by RustProxy's encrypted Secret Store.
-        # Certbot needs a file path, but the plaintext file exists only while the
-        # provider command runs and is deleted before this worker returns.
+        # Secret Store credentials exist as a plaintext file only while Certbot runs.
         credential_file = work / (value["provider"] + ".ini")
         if value["provider"] == "http01":
             webroot = certificate_directory / "acme-http01"
@@ -265,8 +260,7 @@ def issue(raw: dict, certificate_directory: Path, executable: str | None = None)
                 credential_file.unlink(missing_ok=True)
         cert = read_generated(work, "fullchain.pem")
         key = read_generated(work, "privkey.pem")
-        # Immutable copies allow validation/publication without changing the
-        # active certificate during CA work or a concurrent configuration edit.
+        # Work on immutable copies so the active certificate never changes mid-run.
         stem = "acme-" + uuid.uuid4().hex
         cert_path = certificate_directory / (stem + ".pem")
         key_path = certificate_directory / (stem + ".key")
@@ -392,8 +386,7 @@ def renew(raw: dict, certificate_directory: Path, executable: str | None = None)
         if not isinstance(names, list) or not 1 <= len(names) <= 16:
             raise AcmeError("acme.invalid_domains")
         names = [domain(n, wildcard=value["provider"] != "http01") for n in names]
-        # The renewal config persists, but provider credentials do not. Recreate
-        # the exact path referenced by Certbot only for this invocation.
+        # Credentials are recreated only for the duration of this invocation.
         read_private(work / "config" / "renewal" / "rustproxy.conf", 65536)
         credential_file = work / (value["provider"] + ".ini")
         if value["provider"] != "http01":
@@ -436,8 +429,7 @@ def renew(raw: dict, certificate_directory: Path, executable: str | None = None)
             return output
         if dates["not_after_unix"] < old_dates["not_after_unix"]:
             raise AcmeError("acme.renewal_older_certificate")
-        # Content-addressed immutable staging makes a retry after a publication
-        # failure idempotent (no additional orphan PEMs each time).
+        # Content-addressed staging keeps retries idempotent.
         stem = "acme-" + hashlib.sha256(cert + b"\0" + key).hexdigest()[:48]
         paths = [(certificate_directory / (stem + ".pem"), cert), (certificate_directory / (stem + ".key"), key)]
         if len(list(certificate_directory.glob("acme-*.key"))) >= 1024 and not paths[1][0].exists():

scripts/start_stream_backends.sh

@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 # Start two TCP and two UDP mock backends for RustProxy Stream tests.
 # Usage: ./start_stream_backends.sh [bind-host]
-# Defaults to loopback for safety. Use 0.0.0.0 only on a controlled test network.
 set -euo pipefail
 
 DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"

src/acme/providers/mod.rs

@@ -35,17 +35,20 @@ async fn execute(
     .map_err(|_| "acme.validation_worker_failed".to_owned())?
 }
 
-pub async fn challenge(
-    axum::extract::State(state): axum::extract::State<Arc<App>>,
-    request: axum::extract::Request,
-    next: axum::middleware::Next,
-) -> axum::response::Response {
+const CHALLENGE_PREFIX: &str = "/.well-known/acme-challenge/";
+
+pub fn is_challenge_path(path: &str) -> bool {
+    path.starts_with(CHALLENGE_PREFIX)
+}
+
+pub async fn challenge(state: Arc<App>, request: axum::extract::Request) -> axum::response::Response {
     use axum::{body::Body, response::IntoResponse};
     use tokio::io::AsyncReadExt;
-    const PREFIX: &str = "/.well-known/acme-challenge/";
-    let Some(token) = request.uri().path().strip_prefix(PREFIX) else {
-        return next.run(request).await;
-    };
+    let token = request
+        .uri()
+        .path()
+        .strip_prefix(CHALLENGE_PREFIX)
+        .unwrap_or_default();
     let denied = || {
         (
             StatusCode::NOT_FOUND,

src/admin/documentation/documents.rs

@@ -11,10 +11,11 @@ macro_rules! reader_doc {
 pub(super) static READER_DOCUMENTS: &[(&str, &str, &str)] = &[
     reader_doc!("README.md", "project"),
     reader_doc!("CHANGELOG.md", "project"),
-    reader_doc!("ROADMAP.md", "project"),
+    reader_doc!("LICENSE", "project"),
     reader_doc!("docs/README.md", "guides"),
+    reader_doc!("docs/FEATURES.md", "guides"),
+    reader_doc!("docs/SCREENSHOTS.md", "guides"),
     reader_doc!("docs/INSTALL.md", "guides"),
-    reader_doc!("docs/CONTAINER.md", "guides"),
     reader_doc!("docs/CONFIGURATION.md", "guides"),
     reader_doc!("docs/VHOSTS.md", "guides"),
     reader_doc!("docs/CUSTOM_LOCATIONS.md", "guides"),
@@ -24,11 +25,9 @@ pub(super) static READER_DOCUMENTS: &[(&str, &str, &str)] = &[
     reader_doc!("docs/CACHE.md", "guides"),
     reader_doc!("docs/RESPONSE_DELIVERY.md", "guides"),
     reader_doc!("docs/TRANSPORT.md", "guides"),
-    reader_doc!("docs/TLS_POST_QUANTUM.md", "guides"),
     reader_doc!("docs/STREAMS.md", "guides"),
-    reader_doc!("docs/ACME_PROVIDERS.md", "guides"),
+    reader_doc!("docs/CERTIFICATES.md", "guides"),
     reader_doc!("docs/DOCKER_DISCOVERY.md", "guides"),
-    reader_doc!("docs/INTEGRATIONS.md", "guides"),
     reader_doc!("docs/DASHBOARD.md", "guides"),
     reader_doc!("docs/MONITORING.md", "guides"),
     reader_doc!("docs/LOGS.md", "guides"),
@@ -36,6 +35,6 @@ pub(super) static READER_DOCUMENTS: &[(&str, &str, &str)] = &[
     reader_doc!("docs/MIGRATION.md", "guides"),
     reader_doc!("docs/SECURITY.md", "guides"),
     reader_doc!("docs/API.md", "guides"),
-    reader_doc!("docs/API_ACCESS.md", "guides"),
+    reader_doc!("docs/PERFORMANCE.md", "guides"),
     reader_doc!("docs/TROUBLESHOOTING.md", "guides"),
 ];

src/admin/documentation/tests.rs

@@ -12,7 +12,7 @@ mod tests {
         assert!(documents.iter().any(|doc| doc["path"] == "docs/PHP_FPM.md"));
         assert!(documents
             .iter()
-            .any(|doc| doc["path"] == "docs/TLS_POST_QUANTUM.md"));
+            .any(|doc| doc["path"] == "docs/FEATURES.md"));
         assert!(documents.iter().all(|doc| {
             doc["path"].as_str().is_some_and(|value| !value.is_empty())
                 && doc["title"].as_str().is_some_and(|value| !value.is_empty())

src/admin/openapi.json

@@ -2,7 +2,7 @@
   "openapi": "3.0.3",
   "info": {
     "title": "RustProxy Administration API",
-    "version": "0.35.0",
+    "version": "0.35.3",
     "description": "Administration API for the active panel origin. Sign in through the panel; the same-origin HttpOnly cookie authenticates all private operations. Mutations also require the exact Origin, X-RustProxy-Request: 1 and a session-bound X-CSRF-Token. Loopback HTTP is the default; Settings can enable HTTPS before using a non-loopback administration bind. This document contains no live configuration or credentials. Object schemas marked extensible are summaries: full configuration validation is authoritative in Rust. The API also permits explicitly scoped GeneralApiBearer tokens on a narrow route allowlist, with RO/RW and source CIDR checks; API-token management and Prometheus-token management are browser-session-only."
   },
   "servers": [
@@ -3434,6 +3434,19 @@
             "nullable": true,
             "description": "Optional HTTP Host override. When null for an HTTP vhost probe, RustProxy uses the first exact vhost DNS hostname; if none exists it falls back to the backend host."
           },
+          "port": {
+            "type": "integer",
+            "minimum": 1,
+            "maximum": 65535,
+            "nullable": true,
+            "description": "Optional port for active probes. When null or equal to the backend port, probes use the backend address; otherwise TCP and HTTP probes connect to the same host on this port with the same TLS settings and address restrictions."
+          },
+          "expect_body": {
+            "type": "string",
+            "nullable": true,
+            "maxLength": 256,
+            "description": "Optional text that must appear in the first 64 KiB of an HTTP probe response body. A response with an accepted status but without this text counts as a failed probe (result http_body)."
+          },
           "interval_ms": {
             "type": "integer",
             "minimum": 250,
@@ -3766,6 +3779,10 @@
                 "extra_h3_share",
                 "extra_cache_miss_rate",
                 "extra_backend_active",
+                "extra_backends_healthy",
+                "extra_error_share",
+                "extra_rejected_rate",
+                "extra_cert_expiry",
                 "wide_protocol_rates",
                 "wide_cpu",
                 "wide_memory",
@@ -3847,6 +3864,10 @@
               "extra_h3_share",
               "extra_cache_miss_rate",
               "extra_backend_active",
+              "extra_backends_healthy",
+              "extra_error_share",
+              "extra_rejected_rate",
+              "extra_cert_expiry",
               "wide_protocol_rates",
               "wide_cpu",
               "wide_memory",
@@ -3935,6 +3956,10 @@
                 "extra_h3_share",
                 "extra_cache_miss_rate",
                 "extra_backend_active",
+                "extra_backends_healthy",
+                "extra_error_share",
+                "extra_rejected_rate",
+                "extra_cert_expiry",
                 "wide_protocol_rates",
                 "wide_cpu",
                 "wide_memory",
@@ -4004,6 +4029,10 @@
               "extra_h3_share",
               "extra_cache_miss_rate",
               "extra_backend_active",
+              "extra_backends_healthy",
+              "extra_error_share",
+              "extra_rejected_rate",
+              "extra_cert_expiry",
               "wide_protocol_rates",
               "wide_cpu",
               "wide_memory",
@@ -9521,7 +9550,7 @@
             }
           }
         },
-        "description": "Maximum body 16 KiB. Staging by default. Production requires explicit consent. Provider fields depend on the selected provider; see docs/ACME_PROVIDERS.md. Poll GET /api/acme.",
+        "description": "Maximum body 16 KiB. Staging by default. Production requires explicit consent. Provider fields depend on the selected provider; see docs/CERTIFICATES.md. Poll GET /api/acme.",
         "parameters": [
           {
             "name": "Origin",

src/admin/tests.rs

@@ -1043,8 +1043,7 @@ mod tests {
             .unwrap();
         assert_eq!(response.status(), StatusCode::BAD_REQUEST);
 
-        // GET returns the same standalone section shape accepted by PUT, at the
-        // matching revision and without unrequested configuration fields.
+        // GET returns the same section shape that PUT accepts.
         let read = router
             .clone()
             .oneshot(

src/admin/web/app/config-history.js

@@ -21,8 +21,7 @@ function syncConfigHistoryRestoreButton() {
     button.hidden = configHistorySelectedRevision === null;
     button.disabled = busy || !envelope || !Number.isSafeInteger(revision) || revision >= Number(envelope.revision);
 }
-// Compare leaf fields, not serialized object/array blobs. Object IDs are used
-// for stable array paths so reordering vhosts does not become a huge fake diff.
+// Leaf-level diff keyed by object IDs, so reordering is not a change.
 function configDiff(before, after, path = "$", output = [], depth = 0) {
     if (output.length >= 200 || Object.is(before, after)) return output;
     if (depth >= 24) {

src/admin/web/app/core.js

@@ -165,7 +165,7 @@ function setPanel(name, navigate = true) {
     if (name === "filelogs") void window.rustProxyFileLogs?.refresh();
     if (name === "tls") void refreshCertificateInventory().then(() => { if (authenticated && currentPanel === "tls") renderCertificates(); });
 }
-function bytes(value) { if (value < 1024) return `${value} B`; for (const unit of ["KiB", "MiB", "GiB", "TiB"]) { value /= 1024; if (value < 1024 || unit === "TiB") return `${value.toFixed(value < 10 ? 1 : 0)} ${unit}`; } }
+function bytes(value) { if (value < 1024) return `${Math.round(value)} B`; for (const unit of ["KiB", "MiB", "GiB", "TiB"]) { value /= 1024; if (value < 1024 || unit === "TiB") return `${value.toFixed(value < 10 ? 1 : 0)} ${unit}`; } }
 function uptime(value) {
     let seconds = Math.max(0, Math.floor(Number(value) || 0));
     if (seconds < 60) return `${seconds}s`;
@@ -232,7 +232,23 @@ window.rustProxyOverviewSamples.onChange(() => {
     }
     redrawOverviewHistoryCharts();
 });
-function renderStatus(s, systemSample = false) {
+// Safari has no CSS scroll anchoring: keep the element under the viewport centre in place
+// when a live refresh changes the height of content above it.
+const nativeScrollAnchoring = typeof CSS !== "undefined" && CSS.supports?.("overflow-anchor", "auto");
+function preserveScrollAnchor(render) {
+    if (nativeScrollAnchoring || window.scrollY <= 0) return render();
+    const probe = document.elementFromPoint(window.innerWidth / 2, window.innerHeight / 2);
+    const anchor = probe?.closest?.("article, tr, .mini-live-chart, .network-interface-row") || probe;
+    const before = anchor?.isConnected ? anchor.getBoundingClientRect().top : null;
+    const result = render();
+    if (before !== null && anchor.isConnected) {
+        const shift = anchor.getBoundingClientRect().top - before;
+        if (Math.abs(shift) >= 1) window.scrollBy(0, shift);
+    }
+    return result;
+}
+function renderStatus(s, systemSample = false) { return preserveScrollAnchor(() => renderStatusNow(s, systemSample)); }
+function renderStatusNow(s, systemSample = false) {
     const firstStatus = latestStatus === null;
     latestStatus = {
         ...(latestStatus || {}), ...s,

src/admin/web/app/dashboard-layout-editor.js

@@ -144,9 +144,7 @@ window.rustProxyDashboardLayout = (() => {
             widen.addEventListener("click", () => resize(id, 1));
             const widthValue = el("span", `${width}/12`, "overview-layout-width-value");
             widthValue.title = t("overviewLayoutWidth");
-            // The visual editor intentionally keeps uniformly sized previews.
-            // Group sizing separately from ordering/hiding so both sets wrap
-            // inside a narrow dialog rather than spilling into adjacent tiles.
+            // Size and order controls are grouped separately so they wrap in narrow dialogs.
             const sizeActions = el("span", undefined, "overview-layout-size-actions");
             sizeActions.append(narrow, widthValue, widen);
             const orderActions = el("span", undefined, "overview-layout-order-actions");

src/admin/web/app/overview-extra-metrics.js

@@ -8,10 +8,12 @@ window.rustProxyExtraOverview = (() => {
         "extra_response_latency", "extra_backend_unhealthy",
         "extra_total_rps", "extra_active_exchanges", "extra_h1_share", "extra_h3_share",
         "extra_cache_miss_rate", "extra_backend_active",
+        "extra_backends_healthy", "extra_error_share", "extra_rejected_rate", "extra_cert_expiry",
     ];
     const bounded = new Set([
         "extra_process_fds", "extra_cache_memory", "extra_cold_queue_memory", "extra_cold_storage",
         "extra_h1_share", "extra_h2_share", "extra_h3_share",
+        "extra_backends_healthy", "extra_cert_expiry",
     ]);
     const histories = new Map(), lastCounter = new Map(), lastValue = new Map();
     const lastUnits = new Map(), lastSegments = new Map();
@@ -98,11 +100,36 @@ window.rustProxyExtraOverview = (() => {
                 unit: "count", detail: ""
             };
         }
+        if (id === "extra_backends_healthy") {
+            const members = Array.isArray(status.backend_pools)
+                ? status.backend_pools.flatMap(pool => (pool.members || []).map(member => ({ pool: pool.id, ...member }))) : null;
+            if (!members) return { value: null, unit: "count", detail: "" };
+            const monitored = members.filter(member => member.health_check_enabled !== false && member.health_mode !== "off");
+            const down = monitored.filter(member => member.status === "down" || member.healthy === false);
+            const up = monitored.length - down.length;
+            return {
+                value: monitored.length ? `${fmt(up)} / ${fmt(monitored.length)}` : null, unit: "text",
+                meterPercent: monitored.length ? up / monitored.length * 100 : null,
+                detail: !monitored.length ? t("overviewExtraBackendsNone")
+                    : down.length ? `${t("overviewExtraBackendsDown")}: ${down.slice(0, 3).map(member => `${member.pool}/${member.id}`).join(", ")}${down.length > 3 ? " …" : ""}`
+                        : t("overviewExtraBackendsAllUp"),
+            };
+        }
+        if (id === "extra_cert_expiry") {
+            const inventory = typeof certificateInventory !== "undefined" && certificateInventory instanceof Map ? [...certificateInventory.values()] : [];
+            const dated = inventory.filter(cert => Number.isFinite(Number(cert?.days_remaining)))
+                .sort((a, b) => Number(a.days_remaining) - Number(b.days_remaining));
+            if (!dated.length) return { value: null, unit: "days", detail: t("overviewExtraCertNone") };
+            const nearest = dated[0], days = Number(nearest.days_remaining);
+            const name = (Array.isArray(nearest.covered_hosts) && nearest.covered_hosts[0]) || (Array.isArray(nearest.hosts) && nearest.hosts[0]) || nearest.id;
+            return { value: days, unit: "days", meterPercent: Math.max(0, Math.min(100, days / 90 * 100)), detail: `${name} · ${fmt(dated.length)} ${t("overviewExtraCertCount")}` };
+        }
         if (id === "extra_cache_memory") return ramBudget(c.resident_bytes, c.hot_limit_bytes);
         if (id === "extra_cold_queue_memory") return ramBudget(c.cold_queue_bytes, c.cold_queue_limit_bytes);
         if (id === "extra_cold_storage") return ramBudget(c.cold_bytes, c.cold_limit_bytes);
         if (!["extra_tls_error_rate", "extra_request_error_rate", "extra_cache_hit_rate", "extra_h2_share",
-            "extra_total_rps", "extra_h1_share", "extra_h3_share", "extra_cache_miss_rate"].includes(id))
+            "extra_total_rps", "extra_h1_share", "extra_h3_share", "extra_cache_miss_rate",
+            "extra_error_share", "extra_rejected_rate"].includes(id))
             return { value: null, unit: "count", detail: "" };
         const fields = ({
             extra_tls_error_rate: [m.tls_handshake_errors],
@@ -113,8 +140,10 @@ window.rustProxyExtraOverview = (() => {
             extra_h3_share: [m.http3_requests, m.requests],
             extra_total_rps: [m.requests],
             extra_cache_miss_rate: [c.misses],
+            extra_error_share: [m.errors, m.requests],
+            extra_rejected_rate: [m.rejected_requests, m.rejected_connections],
         })[id].map(positive);
-        const unit = ["extra_cache_hit_rate", "extra_h2_share", "extra_h1_share", "extra_h3_share"].includes(id)
+        const unit = ["extra_cache_hit_rate", "extra_h2_share", "extra_h1_share", "extra_h3_share", "extra_error_share"].includes(id)
             ? "percent" : "rate";
         if (fields.some(v => v === null)) {
             lastCounter.delete(id);
@@ -124,6 +153,12 @@ window.rustProxyExtraOverview = (() => {
         const result = elapsedDelta(id, fields, now);
         if (!result) return { value: null, unit, detail: "", slices: null };
         const { deltas, seconds } = result;
+        if (id === "extra_rejected_rate") return {
+            value: (deltas[0] + deltas[1]) / seconds, unit, detail: `${t("overviewExtraRejectedDetail")}: ${fmt(fields[0])} / ${fmt(fields[1])}`
+        };
+        if (id === "extra_error_share") return {
+            value: deltas[1] > 0 ? Math.min(100, deltas[0] / deltas[1] * 100) : 0, unit, detail: `${t("overviewExtraErrorShareDetail")}: ${fmt(deltas[0])} / ${fmt(deltas[1])}`
+        };
         if (unit === "rate") return { value: deltas[0] / seconds, unit, detail: "" };
         const sum = id === "extra_cache_hit_rate" ? deltas[0] + deltas[1] : deltas[1];
         return {
@@ -137,6 +172,8 @@ window.rustProxyExtraOverview = (() => {
         if (unit === "bytes") return fmtBytes(value);
         if (unit === "ms") return `${fmt(value, 1)} ms`;
         if (unit === "rate") return `${fmt(value, 1)}/s`;
+        if (unit === "days") return `${fmt(value)} ${t("overviewExtraDaysUnit")}`;
+        if (unit === "text") return String(value);
         return fmt(value);
     }
     function points(id, history, unit) {

src/admin/web/app/overview-samples.js

@@ -9,18 +9,27 @@ window.rustProxyOverviewSamples = (() => {
     } catch { /* Private browsing or storage policy: temporary selection still works. */ }
     let limit = saved;
     const callbacks = new Set();
+    let confirmationTimer = null;
     const getLimit = () => limit;
     const trim = array => {
         if (Array.isArray(array) && array.length > limit) array.splice(0, array.length - limit);
         return array;
     };
-    function sync(messageKey = limit === saved ? "overviewSamplesSaved" : "overviewSamplesTemporary") {
+    // The status is shown only for a temporary choice, a storage problem or briefly after saving.
+    function sync(messageKey = limit === saved ? null : "overviewSamplesTemporary", confirmation = false) {
         const select = document.getElementById("overview-live-samples");
         if (select) select.value = String(limit);
         const state = document.getElementById("overview-samples-state");
         if (state) {
-            state.dataset.i18n = messageKey;
-            state.textContent = t(messageKey);
+            clearTimeout(confirmationTimer);
+            if (messageKey) {
+                state.dataset.i18n = messageKey;
+                state.textContent = t(messageKey);
+                state.style.visibility = "visible";
+            } else {
+                state.style.visibility = "hidden";
+            }
+            if (confirmation) confirmationTimer = setTimeout(() => { state.style.visibility = "hidden"; }, 2500);
         }
         const save = document.getElementById("overview-samples-save");
         if (save) save.disabled = limit === saved;
@@ -43,7 +52,7 @@ window.rustProxyOverviewSamples = (() => {
         const changed = count !== limit;
         limit = count;
         if (changed) for (const callback of callbacks) callback(limit);
-        sync();
+        if (persist) sync("overviewSamplesSaved", true); else sync();
         return true;
     }
     function init() {

src/admin/web/app/rate-sampling.js

@@ -1,6 +1,4 @@
-// One continuity policy for all browser-side counter-derived rates.
-// Background tabs cannot supply a valid instantaneous rate for an interval
-// spanning the pause. Keep the plotted history and rebase on the next sample.
+// Shared rate sampling: rebase after background-tab pauses instead of plotting a false spike.
 const rustProxyRateSampling = (() => {
     let generation = 0;
     const pause = () => { generation += 1; };
@@ -19,6 +17,10 @@ const rustProxyRateSampling = (() => {
             at - previous.at <= Math.max(10000, seconds * 3000));
     }
     function difference(previous, values, at, intervalSeconds = 3) {
+        if (previous && previous.generation === generation && Number.isFinite(at) &&
+            Number.isFinite(previous.at) && at >= previous.at && at - previous.at < 250) {
+            return { next: previous, deltas: null, seconds: null, rapid: true };
+        }
         const next = { ...stamp(at), values: [...values] };
         if (!continuous(previous, at, intervalSeconds) ||
             values.some((value, i) => !Number.isFinite(value) || value < 0 ||

src/admin/web/app/refresh.js

@@ -182,7 +182,7 @@ const rustProxyRefresh = (() => {
             const value = await api("/api/system-info", { signal });
             if (!isCurrent()) return;
             latestStatus = { ...(latestStatus || {}), ...value };
-            if (latestStatus.metrics) renderDiagnostics(latestStatus, false, true);
+            if (latestStatus.metrics) preserveScrollAnchor(() => renderDiagnostics(latestStatus, false, true));
             window.rustProxySettings?.render();
         }
     });

src/admin/web/css/00-tokens.css

@@ -1,6 +1,4 @@
-/* Theme palettes and appearance tokens. Runtime preference variables remain writable by JavaScript.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Theme palettes and appearance tokens */
 
 :root {
   color-scheme: dark;

src/admin/web/css/10-base.css

@@ -1,6 +1,4 @@
-/* Shared reset, typography, controls, forms, tables, cards and overlay primitives.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Shared reset, typography, controls, forms, tables, cards and overlay primitives */
 
 * {
   box-sizing: border-box;
@@ -1304,8 +1302,9 @@ body[data-density=compact] .page-footer {
 }
 
 .about-dialog {
-  width: calc(min(560px, 100vw - 24px));
-  overflow: hidden;
+  width: calc(min(640px, 100vw - 24px));
+  max-height: calc(100vh - 24px);
+  overflow: auto;
 }
 
 .about-dialog .window-heading button {
@@ -1370,6 +1369,38 @@ body[data-density=compact] .page-footer {
   line-height: 1.65;
 }
 
+.about-license {
+  display: grid;
+  gap: 8px;
+  padding: 12px 14px;
+  border: 1px solid var(--line);
+  background: var(--panel);
+}
+
+.about-license h3 {
+  margin: 0;
+}
+
+.about-license p {
+  margin: 0;
+  line-height: 1.6;
+}
+
+.about-license ul {
+  display: grid;
+  gap: 4px;
+  margin: 0;
+  padding-inline-start: 18px;
+  color: var(--muted);
+  line-height: 1.5;
+}
+
+.about-links {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr);
+  gap: 6px;
+}
+
 .about-repository {
   justify-content: space-between;
   gap: 12px;
@@ -1381,7 +1412,9 @@ body[data-density=compact] .page-footer {
 .about-repository span:last-child {
   color: var(--muted);
   font: 10px var(--mono);
-  overflow-wrap: anywhere;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
 }
 
 html[data-table-density=compact] :is(table th, table td) {
@@ -1479,7 +1512,6 @@ html[data-table-density=ultra] :is(table th, table td) {
   align-items: center;
 }
 
-/* Keep generated ACL instructions in the original metrics-example code style. */
 .path-permissions {
   min-width: 0;
 }
@@ -1506,7 +1538,6 @@ html[data-table-density=ultra] :is(table th, table td) {
   max-width: 260px;
 }
 
-/* Permission guidance belongs to its generated command block, not the path inputs. */
 #certificate-external-acl-example.path-permissions {
   margin-top: 20px;
   border-top: 1px solid var(--line);

src/admin/web/css/20-shell.css

@@ -1,6 +1,4 @@
-/* Application startup, authentication, navigation, page chrome and draft dock.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Application startup, authentication, navigation, page chrome and draft dock */
 
 html.app-loading .shell {
   visibility: hidden;

src/admin/web/css/30-overview.css

@@ -1,6 +1,4 @@
-/* Overview metrics, charts, dashboard density, inline layout controls and presets.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Overview metrics, charts, dashboard density, inline layout controls and presets */
 
 html[data-theme=ultra_dark] :is(.card, .stat, dialog) {
   box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
@@ -76,8 +74,7 @@ html[data-theme=cream] :is(.card, .stat, dialog) {
   stroke-dasharray: var(--chart-grid-dash, 2 5);
 }
 
-/* Optional X/Y scale readouts do not change SVG coordinates or chart ranges.
- * Labels are HTML, not distorted SVG text under preserveAspectRatio="none". */
+/* Axis labels are HTML overlays, not stretched SVG text. */
 .rp-chart-axis-host {
   position: relative;
   display: flow-root;
@@ -2122,3 +2119,17 @@ html[data-dashboard-density] #panel-overview .stat :is(.stat-chart-legend, .over
   color: var(--muted);
   font: 400 10px var(--mono);
 }
+
+/* Live values stay on one line so refreshes do not change card heights. */
+.mini-live-chart-head> :last-child,
+.network-interface-row-head .network-interface-head-actions {
+  flex: 0 0 auto;
+  white-space: nowrap;
+}
+
+.mini-live-chart-head>span:first-child {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}

src/admin/web/css/40-editors.css

@@ -1,6 +1,4 @@
-/* Shared service editors: Vhosts, backends, Web Server, Streams, routing and ACL pickers.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Shared service editors: Vhosts, backends, Web Server, Streams, routing and ACL pickers */
 
 .host-chip-editor.field-invalid,
 .listener-choices.field-invalid {

src/admin/web/css/50-settings.css

@@ -1,6 +1,4 @@
-/* Settings, certificates, integrations and Docker agent/service management.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Settings, certificates, integrations and Docker agent/service management */
 
 .settings-tabs button.has-unsaved:after {
   content: "";
@@ -1205,7 +1203,7 @@ html[data-dashboard-density=normal] #panel-overview .stat>span,
   width: 100%;
   min-width: 0;
 }
-/* 0.34.13: global security policy forms, grouped with clear control boundaries. */
+/* Global security policy forms */
 .global-policy-form .global-policy-section {
   display: grid;
   gap: 10px;

src/admin/web/css/60-monitoring.css

@@ -1,6 +1,4 @@
-/* Traffic, cache, transformations, live/stored logs and configuration history.
- * Order is defined in manifest.json; responsive rules are centralized in 70-responsive.css.
- */
+/* Traffic, cache, transformations, live/stored logs and configuration history */
 
 .certificate-card .pill,
 .cache-miss-key,

src/admin/web/css/70-responsive.css

@@ -1,6 +1,4 @@
-/* Responsive rules. Each viewport, container and reduced-motion condition is declared once.
- * Historical overrides were resolved before consolidation; preserve the documented order.
- */
+/* Responsive rules */
 
 @media (min-width:1201px) {
   #panel-overview .stats-grid {
@@ -1052,7 +1050,8 @@
   }
 
   .named-listener-row .vh-grid,
-  .about-meta {
+  .about-meta,
+  .about-links {
     grid-template-columns: 1fr;
   }
 
@@ -1388,7 +1387,6 @@
     letter-spacing: -2px;
   }
 
-  /* The standalone auth heading keeps its later, unconditional font size. */
   .login-section h1:where(:not(.auth-main h1)) {
     font-size: 40px;
   }

src/admin/web/css/README.md

@@ -91,9 +91,3 @@ When replacing a previously built checkout with a source ZIP, include the root
 the [generated-CSS recovery steps](../../../../scripts/README.md#missing-generated-css-during-rust-compilation).
 Source preflight does not generate Cargo outputs. The build tracks the generated
 bundle as well as its inputs, and rejects a missing or empty output.
-
-The optional [dashboard browser regression runner](../../../../tools/dev/README-dashboard-css.md)
-assembles the actual HTML and JavaScript against synthetic API fixtures and
-compares a supplied baseline stylesheet with the built candidate. It includes
-breakpoint/container boundaries and dynamic editor states. Its dependencies are
-development-only; they are not part of the application build or deployment.

src/admin/web/dashboard-defaults.json

@@ -78,7 +78,11 @@
     "www_failures",
     "www_traffic",
     "www_top_services",
-    "www_status_trend"
+    "www_status_trend",
+    "extra_backends_healthy",
+    "extra_error_share",
+    "extra_rejected_rate",
+    "extra_cert_expiry"
   ],
   "dashboard_hidden_widgets": [
     "cache_outcomes",
@@ -132,7 +136,11 @@
     "www_status_trend",
     "extra_cold_queue_memory",
     "wide_cache_activity",
-    "backend_rotations"
+    "backend_rotations",
+    "extra_backends_healthy",
+    "extra_error_share",
+    "extra_rejected_rate",
+    "extra_cert_expiry"
   ],
   "dashboard_density": "compact",
   "overview_samples": 600

src/admin/web/dashboard-widgets.json

@@ -867,5 +867,49 @@
     "category": "web_server",
     "default_hidden": true,
     "display_type": "chart"
+  },
+  {
+    "id": "extra_backends_healthy",
+    "label_key": "overviewExtraBackendsHealthy",
+    "description_key": "overviewExtraBackendsHealthyDescription",
+    "element_selector": "[data-dashboard-widget=\"extra_backends_healthy\"]",
+    "data_source": "backend_status",
+    "no_data": "neutral_dash",
+    "category": "backends",
+    "default_hidden": true,
+    "display_type": "value_chart"
+  },
+  {
+    "id": "extra_error_share",
+    "label_key": "overviewExtraErrorShare",
+    "description_key": "overviewExtraErrorShareDescription",
+    "element_selector": "[data-dashboard-widget=\"extra_error_share\"]",
+    "data_source": "status_metrics",
+    "no_data": "neutral_dash",
+    "category": "performance",
+    "default_hidden": true,
+    "display_type": "value_chart"
+  },
+  {
+    "id": "extra_rejected_rate",
+    "label_key": "overviewExtraRejectedRate",
+    "description_key": "overviewExtraRejectedRateDescription",
+    "element_selector": "[data-dashboard-widget=\"extra_rejected_rate\"]",
+    "data_source": "status_metrics",
+    "no_data": "neutral_dash",
+    "category": "performance",
+    "default_hidden": true,
+    "display_type": "value_chart"
+  },
+  {
+    "id": "extra_cert_expiry",
+    "label_key": "overviewExtraCertExpiry",
+    "description_key": "overviewExtraCertExpiryDescription",
+    "element_selector": "[data-dashboard-widget=\"extra_cert_expiry\"]",
+    "data_source": "system_status",
+    "no_data": "neutral_dash",
+    "category": "overview",
+    "default_hidden": true,
+    "display_type": "value_chart"
   }
 ]

src/admin/web/docs.css

@@ -1,4 +1,4 @@
-/* A deliberately self-contained documentation layout. */
+/* Documentation Reader layout. */
 * {
     box-sizing: border-box
 }
@@ -325,6 +325,38 @@ main {
     color: #52606d
 }
 
+.reader-table {
+    overflow-x: auto;
+    margin: 14px 0
+}
+
+.reader-table table {
+    border-collapse: collapse;
+    width: 100%;
+    font-size: 14px
+}
+
+.reader-table :is(th, td) {
+    text-align: left;
+    vertical-align: top;
+    padding: 7px 10px;
+    border: 1px solid #e0e5ea;
+    line-height: 1.5
+}
+
+.reader-table th {
+    background: #f4f6f8
+}
+
+.reader-image {
+    display: block;
+    margin: 12px 0;
+    padding: 10px 12px;
+    border: 1px dashed #c9d1d9;
+    color: #52606d;
+    font-size: 13px
+}
+
 .reader-empty {
     color: #687581;
     padding: 10px 8px
@@ -344,8 +376,7 @@ main {
         padding: 18px
     }
 }
-/* Authenticated documentation uses the same stored corner preference as the
-   main panel, while retaining its original flat shape for "Original". */
+/* Corner style follows the panel preference. */
 html[data-corner-style=square] {
     --rp-docs-radius-surface: 0px;
     --rp-docs-radius-control: 0px;

src/admin/web/docs.js

@@ -10,6 +10,7 @@
   let documents = [], docsByPath = new Map(), currentDocument = null, activeTab = "reader";
   let channel = null; try { channel = new BroadcastChannel("rustproxy-admin-session"); } catch { }
   const t = key => translations[key] ?? fallback[key] ?? key;
+  const REPOSITORY_RAW = "https://git.linuxiarz.pl/gru/RustProxy/raw/branch/master";
 
   function docsConfirm(message) {
     return new Promise(resolve => {
@@ -78,12 +79,22 @@
   }
 
   function appendInline(parent, text, basePath) {
-    const pattern = /(`[^`]+`|\[[^\]]+\]\([^)]+\))/g; let offset = 0;
+    const pattern = /(`[^`]+`|\*\*[^*]+\*\*|!?\[[^\]]*\]\([^)]+\))/g; let offset = 0;
     for (const match of text.matchAll(pattern)) {
       if (match.index > offset) parent.append(document.createTextNode(text.slice(offset, match.index)));
       const token = match[0];
       if (token.startsWith("`")) {
         const code = document.createElement("code"); code.textContent = token.slice(1, -1); parent.append(code);
+      } else if (token.startsWith("**")) {
+        const strong = document.createElement("strong"); appendInline(strong, token.slice(2, -2), basePath); parent.append(strong);
+      } else if (token.startsWith("!")) {
+        const parsed = /^!\[([^\]]*)\]\(([^)]+)\)$/.exec(token);
+        const caption = document.createElement("a"); caption.className = "reader-image";
+        caption.textContent = `${t("docsImage")}: ${parsed[1] || parsed[2]}`;
+        const target = parsed[2].trim();
+        caption.href = /^https?:\/\//i.test(target) ? target : `${REPOSITORY_RAW}/${normalizeDocPath(basePath, target)}`;
+        caption.target = "_blank"; caption.rel = "noreferrer";
+        parent.append(caption);
       } else {
         const parsed = /^\[([^\]]+)\]\(([^)]+)\)$/.exec(token); const anchor = document.createElement("a");
         anchor.textContent = parsed[1]; const target = parsed[2].trim();
@@ -106,7 +117,7 @@
   function renderMarkdown(documentInfo) {
     const target = element("docs-reader-content"); target.replaceChildren();
     const lines = documentInfo.content.replaceAll("\r\n", "\n").split("\n");
-    let code = null, list = null, paragraph = [];
+    let code = null, list = null, table = null, paragraph = [];
     const flushParagraph = () => { if (!paragraph.length) return; const p = document.createElement("p"); appendInline(p, paragraph.join(" ").trim(), documentInfo.path); target.append(p); paragraph = []; };
     const closeList = () => { list = null; };
     for (const line of lines) {
@@ -117,6 +128,16 @@
         continue;
       }
       if (code) { code.lines.push(line); code.node.textContent = code.lines.join("\n"); continue; }
+      if (/^\s*\|.*\|\s*$/.test(line)) {
+        flushParagraph(); closeList();
+        const cells = line.trim().slice(1, -1).split("|").map(cell => cell.trim());
+        if (cells.every(cell => /^:?-{2,}:?$/.test(cell))) continue;
+        if (!table) { table = document.createElement("table"); const wrap = document.createElement("div"); wrap.className = "reader-table"; wrap.append(table); target.append(wrap); }
+        const row = document.createElement("tr");
+        for (const cell of cells) { const node = document.createElement(table.rows.length ? "td" : "th"); appendInline(node, cell, documentInfo.path); row.append(node); }
+        table.append(row); continue;
+      }
+      table = null;
       const heading = /^(#{1,4})\s+(.+)$/.exec(line);
       if (heading) { flushParagraph(); closeList(); const h = document.createElement(`h${heading[1].length}`); appendInline(h, heading[2], documentInfo.path); target.append(h); continue; }
       const bullet = /^\s*[-*]\s+(.+)$/.exec(line), ordered = /^\s*\d+\.\s+(.+)$/.exec(line);

src/admin/web/index.html

@@ -3143,7 +3143,7 @@
                                     <p class="fine" data-i18n="tlsPqcHelp">TLS 1.3 only: prioritize hybrid
                                         X25519MLKEM768 with classic key exchanges as fallback. This is a key exchange
                                         group, not a cipher suite. Disabled by default.</p>
-                                    <a href="/docs#doc=docs%2FTLS_POST_QUANTUM.md" target="_blank"
+                                    <a href="/docs#doc=docs%2FTRANSPORT.md" target="_blank"
                                         rel="noopener noreferrer" data-i18n="tlsPqcDocs">Learn about PQC, compatibility
                                         and testing (documentation)</a>
                                 </div>
@@ -4300,24 +4300,52 @@ log_errors = On</code></pre>
                 <span aria-hidden="true" class="brand-mark">r<span>/</span>p</span>
                 <div><span class="small-label">RustProxy</span><strong>__RUSTPROXY_VERSION__</strong></div>
             </div>
+            <p data-i18n="aboutTagline">Reverse proxy, web server, certificate manager and traffic monitor in a single
+                service with a built-in administration panel.</p>
             <dl class="about-meta">
                 <div>
                     <dt data-i18n="aboutAuthor">Author</dt>
-                    <dd>Mateusz Gruszczynski @linuxiarz.pl</dd>
+                    <dd>Mateusz Gruszczyński · linuxiarz.pl</dd>
                 </div>
                 <div>
                     <dt data-i18n="aboutLicense">License</dt>
-                    <dd data-i18n="aboutLicenseValue">GNU AGPL v3</dd>
+                    <dd data-i18n="aboutLicenseValue">GNU AGPL v3.0 or later</dd>
+                </div>
+                <div>
+                    <dt data-i18n="aboutCopyright">Copyright</dt>
+                    <dd>© 2026 Mateusz Gruszczyński</dd>
+                </div>
+                <div>
+                    <dt data-i18n="aboutSpdx">SPDX identifier</dt>
+                    <dd><code>AGPL-3.0-or-later</code></dd>
                 </div>
             </dl>
-            <p data-i18n="aboutOpenSourceText">RustProxy is an open-source project. Its source code is publicly
-                available for inspection, development and community contribution.</p>
-            <a class="outline about-repository" href="https://git.linuxiarz.pl/gru/RustProxy" rel="noopener noreferrer"
-                target="_blank"><span data-i18n="aboutRepository">Official source
-                    repository</span><span>git.linuxiarz.pl/gru/RustProxy</span></a>
-            <a class="outline about-repository" href="https://rustproxy.linuxiarz.pl/" rel="noopener noreferrer"
-                target="_blank"><span data-i18n="aboutPackagesRepository">Official package
-                    repository</span><span>rustproxy.linuxiarz.pl</span></a>
+            <section class="about-license" aria-labelledby="about-license-title">
+                <h3 class="small-label" data-i18n="aboutLicenseTitle" id="about-license-title">License summary</h3>
+                <p data-i18n="aboutOpenSourceText">RustProxy is free and open-source software. You may use, study,
+                    modify and redistribute it under the terms of the GNU Affero General Public License, version 3
+                    or any later version.</p>
+                <ul>
+                    <li data-i18n="aboutLicensePointUse">Use it for any purpose, including commercial deployments.</li>
+                    <li data-i18n="aboutLicensePointShare">Distributed copies and modified versions must stay under the
+                        same license and include their source code.</li>
+                    <li data-i18n="aboutLicensePointNetwork">If you run a modified version as a network service, its
+                        users must be able to obtain the modified source code.</li>
+                    <li data-i18n="aboutLicensePointWarranty">The software is provided without any warranty.</li>
+                </ul>
+            </section>
+            <div class="about-links">
+                <a class="outline about-repository" href="https://rustproxy.linuxiarz.pl/" rel="noopener noreferrer"
+                    target="_blank"><span data-i18n="aboutPackagesRepository">Website and packages</span><span>rustproxy.linuxiarz.pl</span></a>
+                <a class="outline about-repository" href="https://git.linuxiarz.pl/gru/RustProxy"
+                    rel="noopener noreferrer" target="_blank"><span data-i18n="aboutRepository">Source
+                        code</span><span>git.linuxiarz.pl/gru/RustProxy</span></a>
+                <a class="outline about-repository" href="/docs#doc=docs%2FREADME.md" rel="noopener"
+                    target="_blank"><span data-i18n="aboutDocumentation">Documentation and API
+                        reference</span><span>/docs</span></a>
+                <a class="outline about-repository" href="/docs#doc=LICENSE" rel="noopener" target="_blank"><span
+                        data-i18n="aboutLicenseText">Full license text</span><span>LICENSE</span></a>
+            </div>
         </article>
     </dialog>
     <div aria-live="polite" class="toast" hidden="" id="toast" popover="manual" role="status"></div>

src/admin/web/partials/overview-metrics.html

@@ -365,6 +365,36 @@
         </polyline>
     </svg><small id="overview-extra-extra_backend_unhealthy-detail">-</small>
 </article>
+<article class="stat stat-meter" data-dashboard-widget="extra_backends_healthy" hidden>
+    <span data-i18n="overviewExtraBackendsHealthy">overviewExtraBackendsHealthy</span><strong id="overview-extra-extra_backends_healthy">-</strong>
+    <div class="overview-meter" id="overview-extra-extra_backends_healthy-meter" role="progressbar"
+        data-i18n-aria="overviewExtraBackendsHealthy" aria-valuemin="0" aria-valuemax="100" aria-valuetext="-">
+        <span class="overview-meter-fill" id="overview-extra-extra_backends_healthy-meter-fill"></span>
+    </div><small id="overview-extra-extra_backends_healthy-detail">-</small>
+</article>
+<article class="stat stat-chart" data-dashboard-widget="extra_error_share" hidden>
+    <span data-i18n="overviewExtraErrorShare">overviewExtraErrorShare</span><strong id="overview-extra-extra_error_share">-</strong>
+    <svg preserveAspectRatio="none" data-i18n-aria="overviewExtraErrorShare" role="img" viewBox="0 0 300 60">
+        <path class="chart-grid" d="M0 15H300 M0 30H300 M0 45H300"></path>
+        <polyline class="diagnostic-line" id="overview-extra-extra_error_share-line" points="0,55 300,55">
+        </polyline>
+    </svg><small id="overview-extra-extra_error_share-detail">-</small>
+</article>
+<article class="stat stat-chart" data-dashboard-widget="extra_rejected_rate" hidden>
+    <span data-i18n="overviewExtraRejectedRate">overviewExtraRejectedRate</span><strong id="overview-extra-extra_rejected_rate">-</strong>
+    <svg preserveAspectRatio="none" data-i18n-aria="overviewExtraRejectedRate" role="img" viewBox="0 0 300 60">
+        <path class="chart-grid" d="M0 15H300 M0 30H300 M0 45H300"></path>
+        <polyline class="diagnostic-line" id="overview-extra-extra_rejected_rate-line" points="0,55 300,55">
+        </polyline>
+    </svg><small id="overview-extra-extra_rejected_rate-detail">-</small>
+</article>
+<article class="stat stat-meter" data-dashboard-widget="extra_cert_expiry" hidden>
+    <span data-i18n="overviewExtraCertExpiry">overviewExtraCertExpiry</span><strong id="overview-extra-extra_cert_expiry">-</strong>
+    <div class="overview-meter" id="overview-extra-extra_cert_expiry-meter" role="progressbar"
+        data-i18n-aria="overviewExtraCertExpiry" aria-valuemin="0" aria-valuemax="100" aria-valuetext="-">
+        <span class="overview-meter-fill" id="overview-extra-extra_cert_expiry-meter-fill"></span>
+    </div><small id="overview-extra-extra_cert_expiry-detail">-</small>
+</article>
 <article class="stat stat-chart" data-dashboard-widget="extra_total_rps" hidden>
     <span data-i18n="overviewExtraTotalRps">HTTP requests / s</span><strong
         id="overview-extra-extra_total_rps">-</strong>

src/admin/web/vhosts/core.js

@@ -24,7 +24,6 @@ const group = (key, advanced = false) => {
   const body = el("div", undefined, "vh-grid"); box.append(body); container.append(box); return body;
 };
 const note = (parent, key) => { const node = text("p", key, "fine vh-wide"); parent.append(node); return node; };
-// Presentation-only subgroup: all existing inputs remain inside their original form.
 const subsection = (parent, key) => {
   const box = el("section", undefined, "vh-wide vh-setting-section");
   box.append(text("h3", key));
@@ -39,6 +38,7 @@ const num = (name, scope) => { const value = Number(str(name, scope)); if (!Numb
 const yes = (name, scope) => read(name, scope).checked;
 const lines = value => value.split(/[\n,]+/).map(s => s.trim()).filter(Boolean);
 const nullable = (name, scope) => str(name, scope) || null;
+const optionalPort = (name, scope) => { const value = str(name, scope); return value ? Number(value) : null; };
 const defaultProxyTimeouts = () => ({ connect_timeout_seconds: 10, response_header_timeout_seconds: 120, read_timeout_seconds: 60, send_timeout_seconds: 60 });
 const changed = () => { dirty = true; };
 const fillWebServices = (select, chosen = "") => {
@@ -215,8 +215,7 @@ function memberRow(parent, value = { id: `origin-${parent.children.length + 1}`,
   const connection = el("div", undefined, "vh-wide vh-backend-switches vh-backend-connection"); main.append(connection);
   controls["member-private"] = field(connection, "member-private", "vhPrivate", value.allow_private, "checkbox");
   const preserve = field(connection, "member-host", "vhPreserveHost", value.preserve_host === true, "checkbox");
-  // Preserve Host is a request-authority choice, not an HTTP/1.1-only option.
-  // The Rust forwarder keeps HTTP/2 :authority consistent with this value.
+  // Preserve Host also applies to HTTP/2 :authority.
 
   const advanced = el("details", undefined, "vh-wide vh-backend-advanced"), extra = el("div", undefined, "vh-grid"); advanced.append(text("summary", "advanced"), extra);
   field(extra, "member-allowlist", "vhAddressAllowlist", (value.address_allowlist || []).join("\n"), "textarea", { rows: 2, maxLength: 8192 });
@@ -230,8 +229,7 @@ function memberRow(parent, value = { id: `origin-${parent.children.length + 1}`,
   field(extra, "member-max-concurrent", "vhMaxConcurrentRequests", value.max_concurrent_requests ?? 0, "number", { required: true, min: 0, max: 1000000 });
   field(extra, "member-queue-timeout", "vhBackendQueueTimeout", value.queue_timeout_ms ?? 0, "number", { required: true, min: 0, max: 60000 });
   note(extra, "vhBackendCapacityHelp");
-  // The per-member settings live in the Health tab. Keep one persistent form
-  // per backend, so switching the selection never discards unsaved edits.
+  // One persistent form per backend keeps unsaved edits when switching.
   const healthPanel = el("section", undefined, "vh-grid vh-backend-health-panel");
   const customHealth = field(healthPanel, "member-health-custom", "backendHealthOverride", value.health_check != null, "checkbox");
   const health = value.health_check || {};
@@ -239,6 +237,8 @@ function memberRow(parent, value = { id: `origin-${parent.children.length + 1}`,
   field(healthFields, "member-health-mode", "vhHealthMode", health.mode || "tcp", "select", { values: [["off", "vhOff"], ["tcp", "vhTcp"], ["http", "vhHttp"]] });
   field(healthFields, "member-health-path", "vhHealthPath", health.path ?? "/", "text", { maxLength: 1024 });
   field(healthFields, "member-health-host", "vhHealthHost", health.host ?? "", "text", { maxLength: 253 });
+  field(healthFields, "member-health-port", "vhHealthPort", health.port ?? "", "number", { min: 1, max: 65535, step: 1 }).placeholder = t("vhHealthPortPlaceholder");
+  field(healthFields, "member-health-expect-body", "vhHealthExpectBody", health.expect_body ?? "", "text", { maxLength: 256 });
   field(healthFields, "member-health-interval", "vhInterval", health.interval_ms ?? 5000, "number", { min: 250, max: 300000, required: true });
   field(healthFields, "member-health-timeout", "vhTimeout", health.timeout_ms ?? 2000, "number", { min: 50, max: 60000, required: true });
   field(healthFields, "member-health-slow", "vhSlow", health.slow_response_ms ?? 1500, "number", { min: 0, max: 60000, required: true });
@@ -305,9 +305,7 @@ function debugOriginIssues(members) {
     let parsed; try { parsed = new URL(member.url); } catch { return false; }
     const host = parsed.hostname.replace(/^\[|\]$/g, ""), ipHost = /^\d{1,3}(?:\.\d{1,3}){3}$/.test(host) || host.includes(":");
     if (parsed.protocol !== "https:" || !ipHost) return false;
-    // The troubleshooting preset is OPTIONAL, not a protocol compatibility rule.
-    // Warn only when IP-host TLS verification may need an explicit identity;
-    // HTTP/1.1, Auto and H2 plus preserve_host are all valid configurations.
+    // Warn only when TLS verification of an IP host needs an explicit server name.
     return member.tls_verify === true && !String(member.tls_server_name || "").trim();
   });
 }
@@ -498,9 +496,7 @@ function locationsEditor(parent, values) {
     row.addEventListener("input", () => { syncUi(); sync(); }); row.addEventListener("change", () => { syncUi(); sync(); });
     rows.append(row); syncUi();
   }
-  // The main vhost backend is an internal fallback, not a Custom location.
-  // An empty location list must stay empty so the editor cannot accidentally
-  // delete or recreate the main route as user configuration.
+  // The main backend is an internal fallback, never an editable location.
   for (const value of values) add(value);
   const bottom = el("div", undefined, "vh-wide location-toolbar location-toolbar-bottom"); bottom.append(button("locationAdd", () => { add(); sync(); }, "primary")); parent.append(bottom);
   form.querySelector(".vh-members").addEventListener("input", () => { for (const select of rows.querySelectorAll('[name="location-backend"]')) memberOptions(select); });

src/admin/web/vhosts/editor.js

@@ -238,6 +238,8 @@ function load(value = defaults(), migrationIds = [], show = true) {
   const healthOffWarning = note(g, "vhHealthOffWarning"); const syncHealthWarning = () => { healthOffWarning.hidden = healthMode.value !== "off"; }; healthMode.addEventListener("change", syncHealthWarning); syncHealthWarning();
   field(g, "health-path", "vhHealthPath", health.path || "/", "text", { required: true, maxLength: 1024 });
   field(g, "health-host", "vhHealthHost", health.host || "", "text", { maxLength: 260 });
+  field(g, "health-port", "vhHealthPort", health.port ?? "", "number", { min: 1, max: 65535, step: 1 }).placeholder = t("vhHealthPortPlaceholder");
+  field(g, "health-expect-body", "vhHealthExpectBody", health.expect_body || "", "text", { maxLength: 256 });
   for (const [name, key, val, min, max] of [["interval", "vhInterval", health.interval_ms ?? 5000, 250, 300000], ["timeout", "vhTimeout", health.timeout_ms ?? 2000, 50, 60000], ["slow", "vhSlow", health.slow_response_ms ?? 1500, 0, 60000], ["fall", "vhFall", health.fall ?? 3, 1, 20], ["rise", "vhRise", health.rise ?? 2, 1, 20], ["status-min", "vhStatusMin", health.expected_status_min ?? 200, 100, 599], ["status-max", "vhStatusMax", health.expected_status_max ?? 399, 100, 599]]) field(g, name, key, val, "number", { required: true, min, max }); note(g, "vhHealthNote");
   backendHealthEditorControl = backendHealthEditor(g, members);
   note(g, "backendHealthOverridesHelp");
@@ -560,7 +562,7 @@ function collect() {
     pool_eligible: yes("member-pool", row), backup: yes("member-backup", row), drain: yes("member-drain", row),
     health_check_enabled: yes("member-health-enabled", row),
     health_check: yes("member-health-custom", row.memberHealthPanel) ? {
-      mode: str("member-health-mode", row.memberHealthPanel), path: str("member-health-path", row.memberHealthPanel), host: nullable("member-health-host", row.memberHealthPanel),
+      mode: str("member-health-mode", row.memberHealthPanel), path: str("member-health-path", row.memberHealthPanel), host: nullable("member-health-host", row.memberHealthPanel), port: optionalPort("member-health-port", row.memberHealthPanel), expect_body: nullable("member-health-expect-body", row.memberHealthPanel),
       interval_ms: num("member-health-interval", row.memberHealthPanel), timeout_ms: num("member-health-timeout", row.memberHealthPanel), slow_response_ms: num("member-health-slow", row.memberHealthPanel),
       fall: num("member-health-fall", row.memberHealthPanel), rise: num("member-health-rise", row.memberHealthPanel),
       expected_status_min: num("member-health-min", row.memberHealthPanel), expected_status_max: num("member-health-max", row.memberHealthPanel)
@@ -630,7 +632,7 @@ function collect() {
     load_balancing: {
       algorithm: str("algorithm"), slow_start_seconds: num("slow-start"), keepalive: { enabled: yes("keepalive"), idle_timeout_seconds: num("idle-timeout"), max_idle_per_host: num("max-idle"), tcp_keepalive_seconds: num("tcp-keepalive"), pool_recycle_requests: num("pool-recycle-requests"), pool_recycle_seconds: num("pool-recycle-seconds"), http1_max_buffer_bytes: num("http1-max-buffer") },
       retry: { max_retries: num("retry-max"), retry_connect_errors: yes("retry-connect"), retry_timeouts: yes("retry-timeouts"), retry_statuses: str("retry-statuses").split(/[\s,]+/).filter(Boolean).map(value => Number(value)) },
-      health_check: { mode: str("health-mode"), path: str("health-path"), host: nullable("health-host"), interval_ms: num("interval"), timeout_ms: num("timeout"), slow_response_ms: num("slow"), fall: num("fall"), rise: num("rise"), expected_status_min: num("status-min"), expected_status_max: num("status-max") },
+      health_check: { mode: str("health-mode"), path: str("health-path"), host: nullable("health-host"), port: optionalPort("health-port"), expect_body: nullable("health-expect-body"), interval_ms: num("interval"), timeout_ms: num("timeout"), slow_response_ms: num("slow"), fall: num("fall"), rise: num("rise"), expected_status_min: num("status-min"), expected_status_max: num("status-max") },
       passive_health: {
         enabled: yes("passive-enabled"),
         count_connect_errors: yes("passive-connect"),

src/admin/web/vhosts/health.js

@@ -2,7 +2,7 @@
 function inheritBackendHealthInputs(panel) {
   for (const [local, shared] of [
     ["member-health-mode", "health-mode"], ["member-health-path", "health-path"],
-    ["member-health-host", "health-host"], ["member-health-interval", "interval"],
+    ["member-health-host", "health-host"], ["member-health-port", "health-port"], ["member-health-expect-body", "health-expect-body"], ["member-health-interval", "interval"],
     ["member-health-timeout", "timeout"], ["member-health-slow", "slow"],
     ["member-health-fall", "fall"], ["member-health-rise", "rise"],
     ["member-health-min", "status-min"], ["member-health-max", "status-max"]

src/admin/web/vhosts/render.js

@@ -516,6 +516,7 @@ function renderStatus(status) {
       errors: metrics ? Number(metrics.errors) || 0 : existing.errors ?? 0,
       traffic: metrics ? vhostTrafficRate(id, metrics, trafficSnapshot, trafficNow, seenVhostTraffic) : existing.traffic ?? 0,
       latency: metrics ? Number(metrics.ewma_latency_ms) || 0 : existing.latency ?? 0,
+      measured: Boolean(metrics) || Boolean(existing.measured),
     });
   }
   for (const key of vhostTrafficHistory.keys()) if (!seenVhostTraffic.has(key)) vhostTrafficHistory.delete(key);
@@ -533,8 +534,10 @@ function renderStatus(status) {
   fill("vhostLatency", d => d.latency > 0 ? `${fmt(d.latency, 1)} ms` : "-"); fill("vhostTraffic", d => `${rateBytes(d.traffic)}/s`);
   const now = performance.now();
   for (const [id, data] of aggregate) {
+    if (!data.measured) continue;
     const history = chartHistory.get(id) || { last: null, points: [], bucketSize: 1, pendingSum: 0, pendingCount: 0 };
     const sample = rustProxyRateSampling.difference(history.last, [data.requests], now, rustProxyRateSampling.cadence("overview_seconds"));
+    if (sample.rapid) continue;
     const pausedRate = history.last !== null && sample.deltas === null;
     history.last = sample.next;
     const rate = sample.deltas ? sample.deltas[0] / sample.seconds : 0;

src/balance/health.rs

@@ -450,6 +450,7 @@ pub struct Member {
     pub backend: Arc<CompiledBackend>,
     pub definition: PoolMember,
     pub state: Arc<BackendState>,
+    health_probe: Option<Arc<CompiledBackend>>,
     health_settings: Arc<HealthCheck>,
     passive_settings: Arc<PassiveHealth>,
     token: String,

src/balance/lease_runtime.rs

@@ -291,12 +291,36 @@ impl Pool {
         text
     }
 }
+const PROBE_BODY_LIMIT: usize = 65_536;
+
+async fn probe_body_contains(mut body: hyper::body::Incoming, expected: &[u8]) -> bool {
+    use http_body_util::BodyExt;
+    let mut seen = Vec::new();
+    while seen.len() < PROBE_BODY_LIMIT {
+        match body.frame().await {
+            Some(Ok(frame)) => {
+                if let Ok(data) = frame.into_data() {
+                    let room = PROBE_BODY_LIMIT - seen.len();
+                    seen.extend_from_slice(&data[..data.len().min(room)]);
+                    if seen.windows(expected.len()).any(|window| window == expected) {
+                        return true;
+                    }
+                }
+            }
+            Some(Err(_)) => return false,
+            None => break,
+        }
+    }
+    seen.windows(expected.len()).any(|window| window == expected)
+}
+
 async fn probe(member: Arc<Member>, settings: Arc<HealthCheck>) {
     let start = Instant::now();
+    let target = member.health_probe.as_deref().unwrap_or(&member.backend);
     let result = tokio::time::timeout(Duration::from_millis(settings.timeout_ms), async {
         match settings.mode {
             HealthMode::Tcp => {
-                crate::upstream::tcp_probe(&member.backend.origin, &member.backend.address_policy)
+                crate::upstream::tcp_probe(&target.origin, &target.address_policy)
                     .await
                     .map(|_| "ok")
                     .unwrap_or("connect")
@@ -305,14 +329,14 @@ async fn probe(member: Arc<Member>, settings: Arc<HealthCheck>) {
                 let request = Request::builder()
                     .uri(format!(
                         "{}{}",
-                        member.backend.request_origin, settings.path
+                        target.request_origin, settings.path
                     ))
                     .header(
                         "host",
                         settings
                             .host
                             .as_deref()
-                            .unwrap_or_else(|| member.backend.host_header.to_str().unwrap_or("")),
+                            .unwrap_or_else(|| target.host_header.to_str().unwrap_or("")),
                     )
                     .header("connection", "close")
                     .header(
@@ -321,14 +345,20 @@ async fn probe(member: Arc<Member>, settings: Arc<HealthCheck>) {
                     )
                     .body(Body::empty());
                 match request {
-                    Ok(request) => match member.backend.websocket_client.request(request).await {
+                    Ok(request) => match target.websocket_client.request(request).await {
                         Ok(response) => {
-                            if (settings.expected_status_min..=settings.expected_status_max)
+                            if !(settings.expected_status_min..=settings.expected_status_max)
                                 .contains(&response.status().as_u16())
                             {
-                                "ok"
-                            } else {
                                 "http_status"
+                            } else if let Some(expected) = settings.expect_body.as_deref() {
+                                if probe_body_contains(response.into_body(), expected.as_bytes()).await {
+                                    "ok"
+                                } else {
+                                    "http_body"
+                                }
+                            } else {
+                                "ok"
                             }
                         }
                         Err(_) => "connect",

src/balance/model.rs

@@ -99,6 +99,8 @@ pub struct HealthCheck {
     pub mode: HealthMode,
     pub path: String,
     pub host: Option<String>,
+    pub port: Option<u16>,
+    pub expect_body: Option<String>,
     pub interval_ms: u64,
     pub timeout_ms: u64,
     pub slow_response_ms: u64,
@@ -113,6 +115,8 @@ impl Default for HealthCheck {
             mode: HealthMode::Tcp,
             path: "/".into(),
             host: None,
+            port: None,
+            expect_body: None,
             interval_ms: 5000,
             timeout_ms: 2000,
             slow_response_ms: 1500,
@@ -261,6 +265,13 @@ impl Settings {
                 && !h.path.bytes().any(|b| b <= 32 || b == 127),
             "invalid health HTTP path"
         );
+        ensure!(h.port != Some(0), "health check port must be 1..65535");
+        if let Some(expected) = &h.expect_body {
+            ensure!(
+                !expected.is_empty() && expected.len() <= 256 && !expected.chars().any(char::is_control),
+                "health check expected body text must be 1..256 printable characters"
+            );
+        }
         if let Some(host) = &h.host {
             crate::config::request_host(host)?;
             let _: HeaderValue = host.parse()?;

src/balance/pool_core.rs

@@ -24,6 +24,7 @@ impl Pool {
                 let passive_settings = Arc::new(settings.passive_for(&definition));
                 Arc::new(Member {
                     state: Arc::new(BackendState::new(health_settings.mode)),
+                    health_probe: backend.health_probe.clone(),
                     definition,
                     backend,
                     health_settings,
@@ -112,7 +113,7 @@ impl Pool {
     }
     fn affinity<'a>(&self, headers: &'a HeaderMap) -> Option<&'a str> {
         let mut values = headers
-            .get_all("cookie")
+            .get_all(::http::header::COOKIE)
             .iter()
             .filter_map(|v| v.to_str().ok())
             .flat_map(|v| v.split(';'))
@@ -131,7 +132,7 @@ impl Pool {
             return;
         }
         let retained: Vec<_> = headers
-            .get_all("set-cookie")
+            .get_all(::http::header::SET_COOKIE)
             .iter()
             .filter(|value| {
                 value
@@ -142,9 +143,9 @@ impl Pool {
             })
             .cloned()
             .collect();
-        headers.remove("set-cookie");
+        headers.remove(::http::header::SET_COOKIE);
         for value in retained {
-            headers.append("set-cookie", value);
+            headers.append(::http::header::SET_COOKIE, value);
         }
     }
     pub fn strip_affinity(&self, headers: &mut HeaderMap) {
@@ -152,7 +153,7 @@ impl Pool {
             return;
         }
         let values: Vec<HeaderValue> = headers
-            .get_all("cookie")
+            .get_all(::http::header::COOKIE)
             .iter()
             .filter_map(|value| {
                 let Ok(text) = value.to_str() else {
@@ -175,9 +176,9 @@ impl Pool {
                 }
             })
             .collect();
-        headers.remove("cookie");
+        headers.remove(::http::header::COOKIE);
         for value in values {
-            headers.append("cookie", value);
+            headers.append(::http::header::COOKIE, value);
         }
     }
     pub fn select_member(&self, id: &str) -> Option<Selection> {

src/balance/tests.rs

@@ -832,4 +832,133 @@ mod tests {
         assert_eq!(state.last_status.load(Ordering::Relaxed), 503);
         assert_eq!(lock(&state.last_failure).detail, "status=503");
     }
+
+    fn health_port_config(backend_port: u16, health: serde_json::Value) -> crate::config::Config {
+        serde_json::from_value(serde_json::json!({
+            "listeners":{"endpoints":[{"id":"http","binding":{"address":"127.0.0.1:8080"}}]},
+            "vhosts":[{
+            "id":"app","frontend":{"hosts":["app.localhost"],"listener_ids":["http"]},
+            "backends":[{"id":"a","url":format!("http://127.0.0.1:{backend_port}"),"allow_private":true}],
+            "load_balancing":{"health_check":health}
+        }]})).unwrap()
+    }
+    fn health_port_policy() -> crate::config::ValidationPolicy {
+        crate::config::ValidationPolicy {
+            proxy_addr: "127.0.0.1:8080".parse().unwrap(),
+            admin_addr: "127.0.0.1:9090".parse().unwrap(),
+            tls_addr: None,
+            cert_dir: None,
+            data_dir: None,
+        }
+    }
+    #[test]
+    fn health_check_port_compiles_separate_probe_target() {
+        let policy = health_port_policy();
+        let snapshot = crate::config::compile(
+            health_port_config(9000, serde_json::json!({"mode":"tcp","port":8079})), 0, &policy).unwrap();
+        let backend = &snapshot.pools[0].members[0].backend;
+        assert_eq!(backend.origin, "http://127.0.0.1:9000");
+        assert_eq!(backend.health_probe.as_ref().unwrap().origin, "http://127.0.0.1:8079");
+        for health in [
+            serde_json::json!({"mode":"tcp","port":9000}),
+            serde_json::json!({"mode":"tcp"}),
+            serde_json::json!({"mode":"off","port":8079}),
+        ] {
+            let snapshot = crate::config::compile(health_port_config(9000, health), 0, &policy).unwrap();
+            assert!(snapshot.pools[0].members[0].backend.health_probe.is_none());
+        }
+        assert!(crate::config::compile(
+            health_port_config(9000, serde_json::json!({"mode":"tcp","port":0})), 0, &policy).is_err());
+        assert!(crate::config::compile(
+            health_port_config(9000, serde_json::json!({"mode":"http","port":9090})), 0, &policy).is_err());
+    }
+    #[tokio::test]
+    async fn health_check_probes_configured_port_instead_of_traffic_port() {
+        let traffic = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
+        let traffic_port = traffic.local_addr().unwrap().port();
+        let closed_port = {
+            let listener = std::net::TcpListener::bind("127.0.0.1:0").unwrap();
+            listener.local_addr().unwrap().port()
+        };
+        let policy = health_port_policy();
+        let config = health_port_config(traffic_port, serde_json::json!({
+            "mode":"tcp","port":closed_port,"fall":1,"rise":1,"interval_ms":250,"timeout_ms":200,"slow_response_ms":0}));
+        let snapshot = crate::config::compile(config, 0, &policy).unwrap();
+        let member = snapshot.pools[0].members[0].clone();
+        let settings = member.health_settings.clone();
+        probe(member.clone(), settings.clone()).await;
+        assert!(!member.state.healthy(), "probe must use the closed health port");
+
+        let health = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
+        let health_port = health.local_addr().unwrap().port();
+        drop(traffic);
+        let config = health_port_config(traffic_port, serde_json::json!({
+            "mode":"tcp","port":health_port,"fall":1,"rise":1,"interval_ms":250,"timeout_ms":200,"slow_response_ms":0}));
+        let snapshot = crate::config::compile(config, 0, &policy).unwrap();
+        let member = snapshot.pools[0].members[0].clone();
+        let settings = member.health_settings.clone();
+        probe(member.clone(), settings).await;
+        assert!(member.state.healthy(), "probe must succeed on the open health port while traffic port is closed");
+        tokio::time::timeout(Duration::from_secs(1), health.accept())
+            .await
+            .expect("health port must receive the probe connection")
+            .unwrap();
+    }
+
+    async fn one_shot_http(body: &'static str) -> (u16, tokio::task::JoinHandle<()>) {
+        use tokio::io::{AsyncReadExt, AsyncWriteExt};
+        let listener = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
+        let port = listener.local_addr().unwrap().port();
+        let task = tokio::spawn(async move {
+            while let Ok((mut socket, _)) = listener.accept().await {
+                let mut buffer = [0u8; 2048];
+                let _ = socket.read(&mut buffer).await;
+                let response = format!(
+                    "HTTP/1.1 200 OK\r\ncontent-length: {}\r\nconnection: close\r\n\r\n{}",
+                    body.len(), body
+                );
+                let _ = socket.write_all(response.as_bytes()).await;
+            }
+        });
+        (port, task)
+    }
+    #[tokio::test]
+    async fn http_health_check_requires_expected_body_text() {
+        let policy = health_port_policy();
+        for (body, healthy) in [("{\"status\":\"ok\"}", true), ("{\"status\":\"degraded\"}", false)] {
+            let (port, server) = one_shot_http(body).await;
+            let config = health_port_config(port, serde_json::json!({
+                "mode":"http","path":"/health","expect_body":"\"status\":\"ok\"",
+                "fall":1,"rise":1,"interval_ms":1000,"timeout_ms":800,"slow_response_ms":0}));
+            let snapshot = crate::config::compile(config, 0, &policy).unwrap();
+            let member = snapshot.pools[0].members[0].clone();
+            probe(member.clone(), member.health_settings.clone()).await;
+            assert_eq!(member.state.healthy(), healthy, "body {body}");
+            if !healthy {
+                assert_eq!(lock(&member.state.health).result, "http_body");
+            }
+            server.abort();
+        }
+        for invalid in ["", "line\nbreak"] {
+            assert!(crate::config::compile(
+                health_port_config(9000, serde_json::json!({"mode":"http","expect_body":invalid})), 0, &policy).is_err());
+        }
+    }
+
+    #[tokio::test]
+    async fn health_check_port_survives_live_reload_with_reused_clients() {
+        let policy = health_port_policy();
+        let defaults = (policy.proxy_addr, policy.tls_addr);
+        let first = crate::config::compile_reusing(
+            health_port_config(9000, serde_json::json!({"mode":"tcp"})), 0, &policy, defaults, None).unwrap();
+        assert!(first.pools[0].members[0].health_probe.is_none());
+        let second = crate::config::compile_reusing(
+            health_port_config(9000, serde_json::json!({"mode":"tcp","port":8079})), 1, &policy, defaults, Some(&first)).unwrap();
+        let member = &second.pools[0].members[0];
+        assert!(Arc::ptr_eq(&member.backend, &first.pools[0].members[0].backend), "traffic clients are reused");
+        assert_eq!(member.health_probe.as_ref().unwrap().origin, "http://127.0.0.1:8079");
+        let third = crate::config::compile_reusing(
+            health_port_config(9000, serde_json::json!({"mode":"tcp"})), 2, &policy, defaults, Some(&second)).unwrap();
+        assert!(third.pools[0].members[0].health_probe.is_none());
+    }
 }

src/cache/cache_regression_tests.rs

@@ -6,8 +6,7 @@ mod tests {
         h.insert("cache-control", value.parse().unwrap());
         h
     }
-    // Legacy-policy regression tests explicitly opt out of the new 0.34.7
-    // default; varnish-compatible behavior has its own test module.
+    // Legacy policy; varnish-compatible behavior is tested separately.
     fn settings() -> Settings {
         Settings {
             enabled: true,

src/cache/collapse.rs

@@ -1,3 +1,6 @@
+const UNCACHEABLE_MEMO_TTL: Duration = Duration::from_secs(30);
+const UNCACHEABLE_MEMO_CAPACITY: usize = 8192;
+
 struct FillFlight {
     id: u64,
     scope: String,
@@ -50,7 +53,7 @@ impl Drop for FillLeaderGuard {
 
 impl Cache {
     pub async fn claim_fill(self: &Arc<Self>, ticket: &Ticket, settings: &Settings) -> FillClaim {
-        if !settings.collapse_enabled {
+        if !settings.collapse_enabled || self.recently_uncacheable(&ticket.key) {
             return FillClaim::Disabled;
         }
         let existing = {
@@ -116,7 +119,46 @@ impl Cache {
         }
     }
 
+    /// Marks a key as uncacheable so requests skip coalescing.
+    pub fn remember_uncacheable(&self, ticket: &Ticket) {
+        let now = std::time::Instant::now();
+        let mut memo = self
+            .uncacheable_until
+            .lock()
+            .unwrap_or_else(|e| e.into_inner());
+        if memo.len() >= UNCACHEABLE_MEMO_CAPACITY {
+            memo.retain(|_, until| *until > now);
+            if memo.len() >= UNCACHEABLE_MEMO_CAPACITY {
+                return;
+            }
+        }
+        memo.insert(ticket.key, now + UNCACHEABLE_MEMO_TTL);
+    }
+
+    fn recently_uncacheable(&self, key: &Key) -> bool {
+        let mut memo = self
+            .uncacheable_until
+            .lock()
+            .unwrap_or_else(|e| e.into_inner());
+        match memo.get(key) {
+            Some(until) if *until > std::time::Instant::now() => true,
+            Some(_) => {
+                memo.remove(key);
+                false
+            }
+            None => false,
+        }
+    }
+
+    fn forget_uncacheable(&self) {
+        self.uncacheable_until
+            .lock()
+            .unwrap_or_else(|e| e.into_inner())
+            .clear();
+    }
+
     fn cancel_all_fill_flights(&self) {
+        self.forget_uncacheable();
         let flights = {
             let mut flights = self.fill_flights.lock().unwrap_or_else(|e| e.into_inner());
             flights
@@ -130,6 +172,7 @@ impl Cache {
     }
 
     fn cancel_scope_fill_flights(&self, scope: &str) {
+        self.forget_uncacheable();
         let removed = {
             let mut flights = self.fill_flights.lock().unwrap_or_else(|e| e.into_inner());
             let keys = flights

src/cache/fill.rs

@@ -92,9 +92,9 @@ impl Candidate {
                 .fetch_add(1, Ordering::Relaxed);
             return;
         }
-        if !self.headers.contains_key("date") {
+        if !self.headers.contains_key(::http::header::DATE) {
             if let Ok(value) = httpdate::fmt_http_date(SystemTime::now()).parse() {
-                self.headers.insert("date", value);
+                self.headers.insert(::http::header::DATE, value);
             }
         }
         self.headers.remove("x-request-id");

src/cache/lifecycle.rs

@@ -23,6 +23,7 @@ impl Cache {
             cold_read_bytes_active: AtomicU64::new(0),
             revalidating: Mutex::new(HashSet::new()),
             fill_flights: Mutex::new(HashMap::new()),
+            uncacheable_until: Mutex::new(HashMap::new()),
             fill_flight_sequence: AtomicU64::new(0),
             collapse_waiters: AtomicU64::new(0),
             bans: Mutex::new(Vec::new()),
@@ -75,6 +76,7 @@ impl Cache {
             cold_read_bytes_active: AtomicU64::new(0),
             revalidating: Mutex::new(HashSet::new()),
             fill_flights: Mutex::new(HashMap::new()),
+            uncacheable_until: Mutex::new(HashMap::new()),
             fill_flight_sequence: AtomicU64::new(0),
             collapse_waiters: AtomicU64::new(0),
             bans: Mutex::new(Vec::new()),