OpenCloud
/
MatrixSynapse
mirror of https://github.com/matrix-org/synapse
1
0
Fork 0
Code Issues Releases Wiki Activity
MatrixSynapse/v1.91/setup/turn/eturnal.html

324 lines
30 KiB
HTML
Raw Normal View History

deploy: 7064b4bcf311c45855c0f9d11a9db8a963b252b9
2023-08-23 18:35:44 +02:00
<!DOCTYPE HTML>
<html lang="en" class="sidebar-visible no-js light">
<head>
<!-- Book generated using mdBook -->
<meta charset="UTF-8">
<title>eturnal TURN server - 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">
</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 ? "navy" : "light";
</script>
<!-- Work around some values being stored in localStorage wrapped in quotes -->
<script type="text/javascript">
try {
var theme = localStorage.getItem('mdbook-theme');
var sidebar = localStorage.getItem('mdbook-sidebar');
if (theme.startsWith('"') && theme.endsWith('"')) {
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
}
if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
}
} catch (e) { }
</script>
<!-- Set the theme before any content is loaded, prevents flash -->
<script type="text/javascript">
var theme;
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
if (theme === null || theme === undefined) { theme = default_theme; }
var html = document.querySelector('html');
html.classList.remove('no-js')
html.classList.remove('light')
html.classList.add(theme);
html.classList.add('js');
</script>
<!-- Hide / unhide sidebar before it is displayed -->
<script type="text/javascript">
var html = document.querySelector('html');
var sidebar = 'hidden';
if (document.body.clientWidth >= 1080) {
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
sidebar = sidebar || 'visible';
}
html.classList.remove('sidebar-visible');
html.classList.add("sidebar-" + sidebar);
</script>
<nav id="sidebar" class="sidebar" aria-label="Table of contents">
<div class="sidebar-scrollbox">
<ol class="chapter"><li class="chapter-item expanded affix "><li class="part-title">Introduction</li><li class="chapter-item expanded "><a href="../../welcome_and_overview.html">Welcome and Overview</a></li><li class="chapter-item expanded affix "><li class="part-title">Setup</li><li class="chapter-item expanded "><a href="../../setup/installation.html">Installation</a></li><li class="chapter-item expanded "><a href="../../postgres.html">Using Postgres</a></li><li class="chapter-item expanded "><a href="../../reverse_proxy.html">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" class="active">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 href="../../usage/configuration/index.html">Configuration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../usage/configuration/config_documentation.html">Configuration Manual</a></li><li class="chapter-item expanded "><a href="../../usage/configuration/homeserver_sample_config.html">Homeserver Sample Config File</a></li><li class="chapter-item expanded "><a href="../../usage/configuration/logging_sample_config.html">Logging Sample Config File</a></li><li class="chapter-item expanded "><a href="../../structured_logging.html">Structured Logging</a></li><li class="chapter-item expanded "><a href="../../templates.html">Templates</a></li><li class="chapter-item expanded "><a href="../../usage/configuration/user_authentication/index.html">User Authentication</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../usage/configuration/user_authentication/single_sign_on/index.html">Single-Sign On</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../openid.html">OpenID Connect</a></li><li class="chapter-item expanded "><a href="../../usage/configuration/user_authentication/single_sign_on/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="../../usage/configuration/user_authentication/single_sign_on/cas.html">CAS</a></li><li class="chapter-item expanded "><a href="../../sso_mapping_providers.html">SSO Mapping Providers</a></li></ol></li><li class="chapter-item expanded "><a href="../../password_auth_providers.html">Password Auth Providers</a></li><li class="chapter-item expanded "><a href="../../jwt.html">JSON Web Tokens</a></li><li class="chapter-item expanded "><a href="../../usage/configuration/user_authentication/refresh_tokens.html">Refresh Tokens</a></li></ol></li><li class="chapter-item expanded "><a href="../../CAPTCHA_SETUP.html">Registration Captcha</a></li><li class="chapter-item expanded "><a href="../../application_services.html">Application Services</a></li><li class="chapter-item expanded "><a href="../../server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="../../consent_tracking.html">Consent Tracking</a></li><li class="chapter-item expanded "><a href="../../user_directory.html">User Directory</a></li><li class="chapter-item expanded "><a href="../../message_retention_policies.html">Message Retention Policies</a></li><li class="chapter-item expanded "><a href="../../modules/index.html">Pluggable Modules</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../
</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" aria-expanded="false" aria-controls="theme-list">
<i class="fa fa-paint-brush"></i>
</button>
<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
<li role="none"><button role="menuitem" class="theme" id="light">Light (default)</button></li>
<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
</ul>
<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
<i class="fa fa-search"></i>
</button>
</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/matrix-org/synapse" title="Git repository" aria-label="Git repository">
<i id="git-repository-button" class="fa fa-github"></i>
</a>
<a href="https://github.com/matrix-org/synapse/edit/develop/docs/setup/turn/eturnal.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="eturnal-turn-server"><a class="header" href="#eturnal-turn-server">eturnal TURN server</a></h1>
<p>The following sections describe how to install <a href="https://github.com/processone/eturnal">eturnal</a>
(which implements the TURN REST API).</p>
<h2 id="eturnal-setup"><a class="header" href="#eturnal-setup"><code>eturnal</code> setup</a></h2>
<h3 id="initial-installation"><a class="header" href="#initial-installation">Initial installation</a></h3>
<p>The <code>eturnal</code> TURN server implementation is available from a variety of sources
such as native package managers, binary packages, installation from source or
<a href="https://eturnal.net/documentation/code/docker.html">container image</a>. They are
all described <a href="https://github.com/processone/eturnal#installation">here</a>.</p>
<p>Quick-Test instructions in a <a href="https://github.com/processone/eturnal/blob/master/QUICK-TEST.md">Linux Shell</a>
or with <a href="https://github.com/processone/eturnal/blob/master/docker-k8s/QUICK-TEST.md">Docker</a>
are available as well.</p>
<h3 id="configuration"><a class="header" href="#configuration">Configuration</a></h3>
<p>After installation, <code>eturnal</code> usually ships a <a href="https://github.com/processone/eturnal/blob/master/config/eturnal.yml">default configuration file</a>
here: <code>/etc/eturnal.yml</code> (and, if not found there, there is a backup file here:
<code>/opt/eturnal/etc/eturnal.yml</code>). It uses the (indentation-sensitive!) <a href="https://en.wikipedia.org/wiki/YAML">YAML</a>
format. The file contains further explanations.</p>
<p>Here are some hints how to configure eturnal on your <a href="https://github.com/processone/eturnal#configuration">host machine</a>
or when using e.g. <a href="https://eturnal.net/documentation/code/docker.html">Docker</a>.
You may also further deep dive into the <a href="https://eturnal.net/documentation/">reference documentation</a>.</p>
<p><code>eturnal</code> runs out of the box with the default configuration. To enable TURN and
to integrate it with your homeserver, some aspects in <code>eturnal</code>'s default configuration file
must be edited:</p>
<ol>
<li>
<p>Homeserver's <a href="../../usage/configuration/config_documentation.html#turn_shared_secret"><code>turn_shared_secret</code></a>
and eturnal's shared <code>secret</code> for authentication</p>
<p>Both need to have the same value. Uncomment and adjust this line in <code>eturnal</code>'s
configuration file:</p>
<pre><code class="language-yaml">secret: &quot;long-and-cryptic&quot; # Shared secret, CHANGE THIS.
</code></pre>
<p>One way to generate a <code>secret</code> is with <code>pwgen</code>:</p>
<pre><code class="language-sh">pwgen -s 64 1
</code></pre>
</li>
<li>
<p>Public IP address</p>
<p>If your TURN server is behind NAT, the NAT gateway must have an external,
publicly-reachable IP address. <code>eturnal</code> tries to autodetect the public IP address,
however, it may also be configured by uncommenting and adjusting this line, so
<code>eturnal</code> advertises that address to connecting clients:</p>
<pre><code class="language-yaml">relay_ipv4_addr: &quot;203.0.113.4&quot; # The server's public IPv4 address.
</code></pre>
<p>If your NAT gateway is reachable over both IPv4 and IPv6, you may
configure <code>eturnal</code> to advertise each available address:</p>
<pre><code class="language-yaml">relay_ipv4_addr: &quot;203.0.113.4&quot; # The server's public IPv4 address.
relay_ipv6_addr: &quot;2001:db8::4&quot; # The server's public IPv6 address (optional).
</code></pre>
<p>When advertising an external IPv6 address, ensure that the firewall and
network settings of the system running your TURN server are configured to
accept IPv6 traffic, and that the TURN server is listening on the local
IPv6 address that is mapped by NAT to the external IPv6 address.</p>
</li>
<li>
<p>Logging</p>
<p>If <code>eturnal</code> was started by systemd, log files are written into the
<code>/var/log/eturnal</code> directory by default. In order to log to the <a href="https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html">journal</a>
instead, the <code>log_dir</code> option can be set to <code>stdout</code> in the configuration file.</p>
</li>
<li>
<p>Security considerations</p>
<p>Consider your security settings. TURN lets users request a relay which will
connect to arbitrary IP addresses and ports. The following configuration is
suggested as a minimum starting point, <a href="https://eturnal.net/documentation/#blacklist">see also the official documentation</a>:</p>
<pre><code class="language-yaml">## Reject TURN relaying from/to the following addresses/networks:
blacklist: # This is the default blacklist.
- &quot;127.0.0.0/8&quot; # IPv4 loopback.
- &quot;::1&quot; # IPv6 loopback.
- recommended # Expands to a number of networks recommended to be
# blocked, but includes private networks. Those
# would have to be 'whitelist'ed if eturnal serves
# local clients/peers within such networks.
</code></pre>
<p>To whitelist IP addresses or specific (private) networks, you need to <strong>add</strong> a
whitelist part into the configuration file, e.g.:</p>
<pre><code class="language-yaml">whitelist:
- &quot;192.168.0.0/16&quot;
- &quot;203.0.113.113&quot;
- &quot;2001:db8::/64&quot;
</code></pre>
<p>The more specific, the better.</p>
</li>
<li>
<p>TURNS (TURN via TLS/DTLS)</p>
<p>Also consider supporting TLS/DTLS. To do this, adjust the following settings
in the <code>eturnal.yml</code> configuration file (TLS parts should not be commented anymore):</p>
<pre><code class="language-yaml">listen:
- ip: &quot;::&quot;
port: 3478
transport: udp
- ip: &quot;::&quot;
port: 3478
transport: tcp
- ip: &quot;::&quot;
port: 5349
transport: tls
## TLS certificate/key files (must be readable by 'eturnal' user!):
tls_crt_file: /etc/eturnal/tls/crt.pem
tls_key_file: /etc/eturnal/tls/key.pem
</code></pre>
<p>In this case, replace the <code>turn:</code> schemes in homeserver's <code>turn_uris</code> settings
with <code>turns:</code>. More is described <a href="../../usage/configuration/config_documentation.html#turn_uris">here</a>.</p>
<p>We recommend that you only try to set up TLS/DTLS once you have set up a
basic installation and got it working.</p>
<p>NB: If your TLS certificate was provided by Let's Encrypt, TLS/DTLS will
not work with any Matrix client that uses Chromium's WebRTC library. This
currently includes Element Android &amp; iOS; for more details, see their
<a href="https://github.com/vector-im/element-android/issues/1533">respective</a>
<a href="https://github.com/vector-im/element-ios/issues/2712">issues</a> as well as the underlying
<a href="https://bugs.chromium.org/p/webrtc/issues/detail?id=11710">WebRTC issue</a>.
Consider using a ZeroSSL certificate for your TURN server as a working alternative.</p>
</li>
<li>
<p>Firewall</p>
<p>Ensure your firewall allows traffic into the TURN server on the ports
you've configured it to listen on (By default: 3478 and 5349 for TURN
traffic (remember to allow both TCP and UDP traffic), and ports 49152-65535
for the UDP relay.)</p>
</li>
<li>
<p>Reload/ restarting <code>eturnal</code></p>
<p>Changes in the configuration file require <code>eturnal</code> to reload/ restart, this
can be achieved by:</p>
<pre><code class="language-sh">eturnalctl reload
</code></pre>
<p><code>eturnal</code> performs a configuration check before actually reloading/ restarting
and provides hints, if something is not correctly configured.</p>
</li>
</ol>
<h3 id="eturnalctl-opterations-script"><a class="header" href="#eturnalctl-opterations-script">eturnalctl opterations script</a></h3>
<p><code>eturnal</code> offers a handy <a href="https://eturnal.net/documentation/#Operation">operations script</a>
which can be called e.g. to check, whether the service is up, to restart the service,
to query how many active sessions exist, to change logging behaviour and so on.</p>
<p>Hint: If <code>eturnalctl</code> is not part of your <code>$PATH</code>, consider either sym-linking it (e.g. ´ln -s /opt/eturnal/bin/eturnalctl /usr/local/bin/eturnalctl´) or call it from the default <code>eturnal</code> directory directly: e.g. <code>/opt/eturnal/bin/eturnalctl info</code></p>
</main>
<nav class="nav-wrapper" aria-label="Page navigation">
<!-- Mobile navigation buttons -->
<a rel="prev" href="../../setup/turn/coturn.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="../../delegate.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="../../setup/turn/coturn.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="../../delegate.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>
</body>
</html>