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diff --git a/v1.111/reverse_proxy.html b/v1.111/reverse_proxy.html new file mode 100644 index 0000000000..9b896d724d --- /dev/null +++ b/v1.111/reverse_proxy.html @@ -0,0 +1,448 @@ +<!DOCTYPE HTML> +<html lang="en" class="sidebar-visible no-js light"> + <head> + <!-- Book generated using mdBook --> + <meta charset="UTF-8"> + <title>Configuring a Reverse Proxy - Synapse</title> + <!-- Custom HTML head --> + <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> + <meta name="description" content=""> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="theme-color" content="#ffffff" /> + + <link rel="icon" href="favicon.svg"> + <link rel="shortcut icon" href="favicon.png"> + <link rel="stylesheet" href="css/variables.css"> + <link rel="stylesheet" href="css/general.css"> + <link rel="stylesheet" href="css/chrome.css"> + <link rel="stylesheet" href="css/print.css" media="print"> + <!-- Fonts --> + <link rel="stylesheet" href="FontAwesome/css/font-awesome.css"> + <link rel="stylesheet" href="fonts/fonts.css"> + <!-- Highlight.js Stylesheets --> + <link rel="stylesheet" href="highlight.css"> + <link rel="stylesheet" href="tomorrow-night.css"> + <link rel="stylesheet" href="ayu-highlight.css"> + + <!-- Custom theme stylesheets --> + <link rel="stylesheet" href="docs/website_files/table-of-contents.css"> + <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css"> + <link rel="stylesheet" href="docs/website_files/indent-section-headers.css"> + <link rel="stylesheet" href="docs/website_files/version-picker.css"> + </head> + <body> + <!-- Provide site root to javascript --> + <script type="text/javascript"> + var path_to_root = ""; + var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? 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class="chapter-item expanded "><a href="reverse_proxy.html" class="active">Configuring a Reverse Proxy</a></li><li class="chapter-item expanded "><a href="setup/forward_proxy.html">Configuring a Forward/Outbound Proxy</a></li><li class="chapter-item expanded "><a href="turn-howto.html">Configuring a Turn Server</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item expanded "><a href="setup/turn/eturnal.html">eturnal TURN server</a></li></ol></li><li class="chapter-item expanded "><a href="delegate.html">Delegation</a></li><li class="chapter-item expanded affix "><li class="part-title">Upgrading</li><li class="chapter-item expanded "><a href="upgrade.html">Upgrading between Synapse Versions</a></li><li class="chapter-item expanded affix "><li class="part-title">Usage</li><li class="chapter-item expanded "><a href="federate.html">Federation</a></li><li class="chapter-item expanded "><a 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format</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_faq.html">Admin FAQ</a></li><li class="chapter-item expanded "><div>Scripts</div></li></ol></li><li class="chapter-item expanded "><li class="part-title">Development</li><li class="chapter-item expanded "><a href="development/contributing_guide.html">Contributing Guide</a></li><li class="chapter-item expanded "><a href="code_style.html">Code Style</a></li><li class="chapter-item expanded "><a href="development/reviews.html">Reviewing Code</a></li><li class="chapter-item expanded "><a href="development/releases.html">Release Cycle</a></li><li class="chapter-item expanded "><a href="development/git.html">Git Usage</a></li><li class="chapter-item expanded "><div>Testing</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/demo.html">Demo scripts</a></li></ol></li><li class="chapter-item expanded "><a href="opentracing.html">OpenTracing</a></li><li class="chapter-item 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joins</a></li></ol></li><li class="chapter-item expanded "><a href="development/internal_documentation/index.html">Internal Documentation</a></li><li><ol class="section"><li class="chapter-item expanded "><div>Single Sign-On</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="development/cas.html">CAS</a></li></ol></li><li class="chapter-item expanded "><a href="development/room-dag-concepts.html">Room DAG concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol> + </div> + <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div> + </nav> + + <div id="page-wrapper" class="page-wrapper"> + + <div class="page"> + <div id="menu-bar-hover-placeholder"></div> + <div id="menu-bar" class="menu-bar sticky bordered"> + <div class="left-buttons"> + <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar"> + <i class="fa fa-bars"></i> + </button> + <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" 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(Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar"> + <i class="fa fa-search"></i> + </button> + <div class="version-picker"> + <div class="dropdown"> + <div class="select"> + <span></span> + <i class="fa fa-chevron-down"></i> + </div> + <input type="hidden" name="version"> + <ul class="dropdown-menu"> + <!-- Versions will be added dynamically in version-picker.js --> + </ul> + </div> + </div> + </div> + + <h1 class="menu-title">Synapse</h1> + + <div class="right-buttons"> + <a href="print.html" title="Print this book" aria-label="Print this book"> + <i id="print-button" class="fa fa-print"></i> + </a> + <a href="https://github.com/element-hq/synapse" title="Git repository" aria-label="Git repository"> + <i id="git-repository-button" class="fa fa-github"></i> + </a> + <a href="https://github.com/element-hq/synapse/edit/develop/docs/reverse_proxy.md" title="Suggest an edit" aria-label="Suggest an edit"> + <i id="git-edit-button" class="fa fa-edit"></i> + </a> + </div> + </div> + + <div id="search-wrapper" class="hidden"> + <form id="searchbar-outer" class="searchbar-outer"> + <input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header"> + </form> + <div id="searchresults-outer" class="searchresults-outer hidden"> + <div id="searchresults-header" class="searchresults-header"></div> + <ul id="searchresults"> + </ul> + </div> + </div> + <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM --> + <script type="text/javascript"> + document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible'); + document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible'); + Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) { + link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1); + }); + </script> + + <div id="content" class="content"> + <main> + <!-- Page table of contents --> + <div class="sidetoc"> + <nav class="pagetoc"></nav> + </div> + + <h1 id="using-a-reverse-proxy-with-synapse"><a class="header" href="#using-a-reverse-proxy-with-synapse">Using a reverse proxy with Synapse</a></h1> +<p>It is recommended to put a reverse proxy such as +<a href="https://nginx.org/en/docs/http/ngx_http_proxy_module.html">nginx</a>, +<a href="https://httpd.apache.org/docs/current/mod/mod_proxy_http.html">Apache</a>, +<a href="https://caddyserver.com/docs/quick-starts/reverse-proxy">Caddy</a>, +<a href="https://www.haproxy.org/">HAProxy</a> or +<a href="https://man.openbsd.org/relayd.8">relayd</a> in front of Synapse. One advantage +of doing so is that it means that you can expose the default https port +(443) to Matrix clients without needing to run Synapse with root +privileges.</p> +<p>You should configure your reverse proxy to forward requests to <code>/_matrix</code> or +<code>/_synapse/client</code> to Synapse, and have it set the <code>X-Forwarded-For</code> and +<code>X-Forwarded-Proto</code> request headers.</p> +<p>You should remember that Matrix clients and other Matrix servers do not +necessarily need to connect to your server via the same server name or +port. Indeed, clients will use port 443 by default, whereas servers default to +port 8448. Where these are different, we refer to the 'client port' and the +'federation port'. See <a href="https://matrix.org/docs/spec/server_server/latest#resolving-server-names">the Matrix +specification</a> +for more details of the algorithm used for federation connections, and +<a href="delegate.html">Delegation</a> for instructions on setting up delegation.</p> +<p><strong>NOTE</strong>: Your reverse proxy must not <code>canonicalise</code> or <code>normalise</code> +the requested URI in any way (for example, by decoding <code>%xx</code> escapes). +Beware that Apache <em>will</em> canonicalise URIs unless you specify +<code>nocanon</code>.</p> +<p>Let's assume that we expect clients to connect to our server at +<code>https://matrix.example.com</code>, and other servers to connect at +<code>https://example.com:8448</code>. The following sections detail the configuration of +the reverse proxy and the homeserver.</p> +<h2 id="homeserver-configuration"><a class="header" href="#homeserver-configuration">Homeserver Configuration</a></h2> +<p>The HTTP configuration will need to be updated for Synapse to correctly record +client IP addresses and generate redirect URLs while behind a reverse proxy. </p> +<p>In <code>homeserver.yaml</code> set <code>x_forwarded: true</code> in the port 8008 section and +consider setting <code>bind_addresses: ['127.0.0.1']</code> so that the server only +listens to traffic on localhost. (Do not change <code>bind_addresses</code> to <code>127.0.0.1</code> +when using a containerized Synapse, as that will prevent it from responding +to proxied traffic.)</p> +<p>Optionally, you can also set +<a href="./usage/configuration/config_documentation.html#listeners"><code>request_id_header</code></a> +so that the server extracts and re-uses the same request ID format that the +reverse proxy is using.</p> +<h2 id="reverse-proxy-configuration-examples"><a class="header" href="#reverse-proxy-configuration-examples">Reverse-proxy configuration examples</a></h2> +<p><strong>NOTE</strong>: You only need one of these.</p> +<h3 id="nginx"><a class="header" href="#nginx">nginx</a></h3> +<pre><code class="language-nginx">server { + listen 443 ssl; + listen [::]:443 ssl; + + # For the federation port + listen 8448 ssl default_server; + listen [::]:8448 ssl default_server; + + server_name matrix.example.com; + + location ~ ^(/_matrix|/_synapse/client) { + # note: do not add a path (even a single /) after the port in `proxy_pass`, + # otherwise nginx will canonicalise the URI and cause signature verification + # errors. + proxy_pass http://localhost:8008; + proxy_set_header X-Forwarded-For $remote_addr; + proxy_set_header X-Forwarded-Proto $scheme; + proxy_set_header Host $host; + + # Nginx by default only allows file uploads up to 1M in size + # Increase client_max_body_size to match max_upload_size defined in homeserver.yaml + client_max_body_size 50M; + + # Synapse responses may be chunked, which is an HTTP/1.1 feature. + proxy_http_version 1.1; + } +} +</code></pre> +<h3 id="caddy-v2"><a class="header" href="#caddy-v2">Caddy v2</a></h3> +<pre><code>matrix.example.com { + reverse_proxy /_matrix/* localhost:8008 + reverse_proxy /_synapse/client/* localhost:8008 +} + +example.com:8448 { + reverse_proxy /_matrix/* localhost:8008 +} +</code></pre> +<p><a href="delegate.html">Delegation</a> example:</p> +<pre><code>example.com { + header /.well-known/matrix/* Content-Type application/json + header /.well-known/matrix/* Access-Control-Allow-Origin * + respond /.well-known/matrix/server `{"m.server": "matrix.example.com:443"}` + respond /.well-known/matrix/client `{"m.homeserver":{"base_url":"https://matrix.example.com"},"m.identity_server":{"base_url":"https://identity.example.com"}}` +} + +matrix.example.com { + reverse_proxy /_matrix/* localhost:8008 + reverse_proxy /_synapse/client/* localhost:8008 +} +</code></pre> +<h3 id="apache"><a class="header" href="#apache">Apache</a></h3> +<pre><code class="language-apache"><VirtualHost *:443> + SSLEngine on + ServerName matrix.example.com + + RequestHeader set "X-Forwarded-Proto" expr=%{REQUEST_SCHEME} + AllowEncodedSlashes NoDecode + ProxyPreserveHost on + ProxyPass /_matrix http://127.0.0.1:8008/_matrix nocanon + ProxyPassReverse /_matrix http://127.0.0.1:8008/_matrix + ProxyPass /_synapse/client http://127.0.0.1:8008/_synapse/client nocanon + ProxyPassReverse /_synapse/client http://127.0.0.1:8008/_synapse/client +</VirtualHost> + +<VirtualHost *:8448> + SSLEngine on + ServerName example.com + + RequestHeader set "X-Forwarded-Proto" expr=%{REQUEST_SCHEME} + AllowEncodedSlashes NoDecode + ProxyPass /_matrix http://127.0.0.1:8008/_matrix nocanon + ProxyPassReverse /_matrix http://127.0.0.1:8008/_matrix +</VirtualHost> +</code></pre> +<p><strong>NOTE</strong>: ensure the <code>nocanon</code> options are included.</p> +<p><strong>NOTE 2</strong>: It appears that Synapse is currently incompatible with the ModSecurity module for Apache (<code>mod_security2</code>). If you need it enabled for other services on your web server, you can disable it for Synapse's two VirtualHosts by including the following lines before each of the two <code></VirtualHost></code> above:</p> +<pre><code class="language-apache"><IfModule security2_module> + SecRuleEngine off +</IfModule> +</code></pre> +<p><strong>NOTE 3</strong>: Missing <code>ProxyPreserveHost on</code> can lead to a redirect loop.</p> +<h3 id="haproxy"><a class="header" href="#haproxy">HAProxy</a></h3> +<pre><code>frontend https + bind *:443,[::]:443 ssl crt /etc/ssl/haproxy/ strict-sni alpn h2,http/1.1 + http-request set-header X-Forwarded-Proto https if { ssl_fc } + http-request set-header X-Forwarded-Proto http if !{ ssl_fc } + http-request set-header X-Forwarded-For %[src] + + # Matrix client traffic + acl matrix-host hdr(host) -i matrix.example.com matrix.example.com:443 + acl matrix-path path_beg /_matrix + acl matrix-path path_beg /_synapse/client + + use_backend matrix if matrix-host matrix-path + +frontend matrix-federation + bind *:8448,[::]:8448 ssl crt /etc/ssl/haproxy/synapse.pem alpn h2,http/1.1 + http-request set-header X-Forwarded-Proto https if { ssl_fc } + http-request set-header X-Forwarded-Proto http if !{ ssl_fc } + http-request set-header X-Forwarded-For %[src] + + default_backend matrix + +backend matrix + server matrix 127.0.0.1:8008 +</code></pre> +<p>Example configuration, if using a UNIX socket. The configuration lines regarding the frontends do not need to be modified.</p> +<pre><code>backend matrix + server matrix unix@/run/synapse/main_public.sock +</code></pre> +<p>Example configuration when using a single port for both client and federation traffic.</p> +<pre><code>frontend https + bind *:443,[::]:443 ssl crt /etc/ssl/haproxy/ strict-sni alpn h2,http/1.1 + http-request set-header X-Forwarded-Proto https if { ssl_fc } + http-request set-header X-Forwarded-Proto http if !{ ssl_fc } + http-request set-header X-Forwarded-For %[src] + + acl matrix-host hdr(host) -i matrix.example.com matrix.example.com:443 + acl matrix-sni ssl_fc_sni matrix.example.com + acl matrix-path path_beg /_matrix + acl matrix-path path_beg /_synapse/client + + use_backend matrix if matrix-host matrix-path + use_backend matrix if matrix-sni + +backend matrix + server matrix 127.0.0.1:8008 +</code></pre> +<p><a href="delegate.html">Delegation</a> example:</p> +<pre><code>frontend https + acl matrix-well-known-client-path path /.well-known/matrix/client + acl matrix-well-known-server-path path /.well-known/matrix/server + use_backend matrix-well-known-client if matrix-well-known-client-path + use_backend matrix-well-known-server if matrix-well-known-server-path + +backend matrix-well-known-client + http-after-response set-header Access-Control-Allow-Origin "*" + http-after-response set-header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" + http-after-response set-header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization" + http-request return status 200 content-type application/json string '{"m.homeserver":{"base_url":"https://matrix.example.com"},"m.identity_server":{"base_url":"https://identity.example.com"}}' + +backend matrix-well-known-server + http-after-response set-header Access-Control-Allow-Origin "*" + http-after-response set-header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" + http-after-response set-header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization" + http-request return status 200 content-type application/json string '{"m.server":"matrix.example.com:443"}' +</code></pre> +<h3 id="relayd"><a class="header" href="#relayd">Relayd</a></h3> +<pre><code>table <webserver> { 127.0.0.1 } +table <matrixserver> { 127.0.0.1 } + +http protocol "https" { + tls { no tlsv1.0, ciphers "HIGH" } + tls keypair "example.com" + match header set "X-Forwarded-For" value "$REMOTE_ADDR" + match header set "X-Forwarded-Proto" value "https" + + # set CORS header for .well-known/matrix/server, .well-known/matrix/client + # httpd does not support setting headers, so do it here + match request path "/.well-known/matrix/*" tag "matrix-cors" + match response tagged "matrix-cors" header set "Access-Control-Allow-Origin" value "*" + + pass quick path "/_matrix/*" forward to <matrixserver> + pass quick path "/_synapse/client/*" forward to <matrixserver> + + # pass on non-matrix traffic to webserver + pass forward to <webserver> +} + +relay "https_traffic" { + listen on egress port 443 tls + protocol "https" + forward to <matrixserver> port 8008 check tcp + forward to <webserver> port 8080 check tcp +} + +http protocol "matrix" { + tls { no tlsv1.0, ciphers "HIGH" } + tls keypair "example.com" + block + pass quick path "/_matrix/*" forward to <matrixserver> + pass quick path "/_synapse/client/*" forward to <matrixserver> +} + +relay "matrix_federation" { + listen on egress port 8448 tls + protocol "matrix" + forward to <matrixserver> port 8008 check tcp +} +</code></pre> +<h2 id="health-check-endpoint"><a class="header" href="#health-check-endpoint">Health check endpoint</a></h2> +<p>Synapse exposes a health check endpoint for use by reverse proxies. +Each configured HTTP listener has a <code>/health</code> endpoint which always returns +200 OK (and doesn't get logged).</p> +<h2 id="synapse-administration-endpoints"><a class="header" href="#synapse-administration-endpoints">Synapse administration endpoints</a></h2> +<p>Endpoints for administering your Synapse instance are placed under +<code>/_synapse/admin</code>. These require authentication through an access token of an +admin user. However as access to these endpoints grants the caller a lot of power, +we do not recommend exposing them to the public internet without good reason.</p> + + </main> + + <nav class="nav-wrapper" aria-label="Page navigation"> + <!-- Mobile navigation buttons --> + <a rel="prev" href="postgres.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left"> + <i class="fa fa-angle-left"></i> + </a> + <a rel="next" href="setup/forward_proxy.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right"> + <i class="fa fa-angle-right"></i> + </a> + <div style="clear: both"></div> + </nav> + </div> + </div> + + <nav class="nav-wide-wrapper" aria-label="Page navigation"> + <a rel="prev" href="postgres.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left"> + <i class="fa fa-angle-left"></i> + </a> + <a rel="next" href="setup/forward_proxy.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right"> + <i class="fa fa-angle-right"></i> + </a> + </nav> + + </div> + + <script type="text/javascript"> + window.playground_copyable = true; + </script> + <script src="elasticlunr.min.js" type="text/javascript" charset="utf-8"></script> + <script src="mark.min.js" type="text/javascript" charset="utf-8"></script> + <script src="searcher.js" type="text/javascript" charset="utf-8"></script> + <script src="clipboard.min.js" type="text/javascript" charset="utf-8"></script> + <script src="highlight.js" type="text/javascript" charset="utf-8"></script> + <script src="book.js" type="text/javascript" charset="utf-8"></script> + + <!-- Custom JS scripts --> + <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script> + <script type="text/javascript" src="docs/website_files/version-picker.js"></script> + <script type="text/javascript" src="docs/website_files/version.js"></script> + </body> +</html> |