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authorbabolivier <babolivier@users.noreply.github.com>2021-10-12 09:56:14 +0000
committerbabolivier <babolivier@users.noreply.github.com>2021-10-12 09:56:14 +0000
commit3e9f830a1f3368f5210862317e608a528735a38b (patch)
treea7249f0217264df9c009bba0f210a12a7e26d211 /v1.45/setup
parentdeploy: 5e29d417fc5933e26ba85a40c298d46b09580330 (diff)
downloadsynapse-3e9f830a1f3368f5210862317e608a528735a38b.tar.xz
deploy: 60af28c5dd803ac4ad1aa216574cac33b6daed6a
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+<!DOCTYPE HTML>
+<html lang="en" class="sidebar-visible no-js light">
+    <head>
+        <!-- Book generated using mdBook -->
+        <meta charset="UTF-8">
+        <title>Configuring a Forward/Outbound Proxy - Synapse</title>
+        
+        
+
+
+        <!-- Custom HTML head -->
+        
+
+
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+        <link rel="icon" href="../favicon.svg">
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+        
+        <link rel="stylesheet" href="../css/variables.css">
+        <link rel="stylesheet" href="../css/general.css">
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+
+        <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" class="active">Configuring a Forward/Outbound Proxy</a></li><li class="chapter-item expanded "><a href="../turn-howto.html">Configuring a Turn Server</a></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 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router callbacks</a></li><li class="chapter-item expanded "><a href="../modules/account_validity_callbacks.html">Account validity callbacks</a></li><li class="chapter-item expanded "><a href="../modules/porting_legacy_module.html">Porting a legacy module to the new interface</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="../workers.html">Workers</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../synctl_workers.html">Using synctl with Workers</a></li><li class="chapter-item expanded "><a href="../systemd-with-workers/index.html">Systemd</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="../usage/administration/index.html">Administration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../usage/administration/admin_api/index.html">Admin API</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../admin_api/account_validity.html">Account Validity</a></li><li 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"><div>Testing</div></li><li class="chapter-item expanded "><a href="../opentracing.html">OpenTracing</a></li><li class="chapter-item expanded "><a href="../development/database_schema.html">Database Schemas</a></li><li class="chapter-item expanded "><a href="../development/experimental_features.html">Experimental features</a></li><li class="chapter-item expanded "><div>Synapse Architecture</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../log_contexts.html">Log Contexts</a></li><li class="chapter-item expanded "><a href="../replication.html">Replication</a></li><li class="chapter-item expanded "><a href="../tcp_replication.html">TCP Replication</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></ol>
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+
+                        <h1 id="using-a-forward-proxy-with-synapse"><a class="header" href="#using-a-forward-proxy-with-synapse">Using a forward proxy with Synapse</a></h1>
+<p>You can use Synapse with a forward or outbound proxy. An example of when
+this is necessary is in corporate environments behind a DMZ (demilitarized zone).
+Synapse supports routing outbound HTTP(S) requests via a proxy. Only HTTP(S)
+proxy is supported, not SOCKS proxy or anything else.</p>
+<h2 id="configure"><a class="header" href="#configure">Configure</a></h2>
+<p>The <code>http_proxy</code>, <code>https_proxy</code>, <code>no_proxy</code> environment variables are used to
+specify proxy settings. The environment variable is not case sensitive.</p>
+<ul>
+<li><code>http_proxy</code>: Proxy server to use for HTTP requests.</li>
+<li><code>https_proxy</code>: Proxy server to use for HTTPS requests.</li>
+<li><code>no_proxy</code>: Comma-separated list of hosts, IP addresses, or IP ranges in CIDR
+format which should not use the proxy. Synapse will directly connect to these hosts.</li>
+</ul>
+<p>The <code>http_proxy</code> and <code>https_proxy</code> environment variables have the form: <code>[scheme://][&lt;username&gt;:&lt;password&gt;@]&lt;host&gt;[:&lt;port&gt;]</code></p>
+<ul>
+<li>
+<p>Supported schemes are <code>http://</code> and <code>https://</code>. The default scheme is <code>http://</code>
+for compatibility reasons; it is recommended to set a scheme. If scheme is set
+to <code>https://</code> the connection uses TLS between Synapse and the proxy.</p>
+<p><strong>NOTE</strong>: Synapse validates the certificates. If the certificate is not
+valid, then the connection is dropped.</p>
+</li>
+<li>
+<p>Default port if not given is <code>1080</code>.</p>
+</li>
+<li>
+<p>Username and password are optional and will be used to authenticate against
+the proxy.</p>
+</li>
+</ul>
+<p><strong>Examples</strong></p>
+<ul>
+<li>HTTP_PROXY=http://USERNAME:PASSWORD@10.0.1.1:8080/</li>
+<li>HTTPS_PROXY=http://USERNAME:PASSWORD@proxy.example.com:8080/</li>
+<li>NO_PROXY=master.hostname.example.com,10.1.0.0/16,172.30.0.0/16</li>
+</ul>
+<p><strong>NOTE</strong>:
+Synapse does not apply the IP blacklist to connections through the proxy (since
+the DNS resolution is done by the proxy). It is expected that the proxy or firewall
+will apply blacklisting of IP addresses.</p>
+<h2 id="connection-types"><a class="header" href="#connection-types">Connection types</a></h2>
+<p>The proxy will be <strong>used</strong> for:</p>
+<ul>
+<li>push</li>
+<li>url previews</li>
+<li>phone-home stats</li>
+<li>recaptcha validation</li>
+<li>CAS auth validation</li>
+<li>OpenID Connect</li>
+<li>Outbound federation</li>
+<li>Federation (checking public key revocation)</li>
+<li>Fetching public keys of other servers</li>
+<li>Downloading remote media</li>
+</ul>
+<p>It will <strong>not be used</strong> for:</p>
+<ul>
+<li>Application Services</li>
+<li>Identity servers</li>
+<li>In worker configurations
+<ul>
+<li>connections between workers</li>
+<li>connections from workers to Redis</li>
+</ul>
+</li>
+</ul>
+<h2 id="troubleshooting"><a class="header" href="#troubleshooting">Troubleshooting</a></h2>
+<p>If a proxy server is used with TLS (HTTPS) and no connections are established,
+it is most likely due to the proxy's certificates. To test this, the validation
+in Synapse can be deactivated.</p>
+<p><strong>NOTE</strong>: This has an impact on security and is for testing purposes only!</p>
+<p>To deactivate the certificate validation, the following setting must be made in
+<a href="../usage/configuration/homeserver_sample_config.html">homserver.yaml</a>.</p>
+<pre><code class="language-yaml">use_insecure_ssl_client_just_for_testing_do_not_use: true
+</code></pre>
+
+                    </main>
+
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diff --git a/v1.45/setup/installation.html b/v1.45/setup/installation.html
new file mode 100644
index 0000000000..374ed72ca1
--- /dev/null
+++ b/v1.45/setup/installation.html
@@ -0,0 +1,652 @@
+<!DOCTYPE HTML>
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+    <head>
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+        <title>Installation - Synapse</title>
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+                        <h1 id="installation-instructions"><a class="header" href="#installation-instructions">Installation Instructions</a></h1>
+<h2 id="choosing-your-server-name"><a class="header" href="#choosing-your-server-name">Choosing your server name</a></h2>
+<p>It is important to choose the name for your server before you install Synapse,
+because it cannot be changed later.</p>
+<p>The server name determines the &quot;domain&quot; part of user-ids for users on your
+server: these will all be of the format <code>@user:my.domain.name</code>. It also
+determines how other matrix servers will reach yours for federation.</p>
+<p>For a test configuration, set this to the hostname of your server. For a more
+production-ready setup, you will probably want to specify your domain
+(<code>example.com</code>) rather than a matrix-specific hostname here (in the same way
+that your email address is probably <code>user@example.com</code> rather than
+<code>user@email.example.com</code>) - but doing so may require more advanced setup: see
+<a href="../federate.html">Setting up Federation</a>.</p>
+<h2 id="installing-synapse"><a class="header" href="#installing-synapse">Installing Synapse</a></h2>
+<h3 id="prebuilt-packages"><a class="header" href="#prebuilt-packages">Prebuilt packages</a></h3>
+<p>Prebuilt packages are available for a number of platforms. These are recommended
+for most users.</p>
+<h4 id="docker-images-and-ansible-playbooks"><a class="header" href="#docker-images-and-ansible-playbooks">Docker images and Ansible playbooks</a></h4>
+<p>There is an official synapse image available at
+<a href="https://hub.docker.com/r/matrixdotorg/synapse">https://hub.docker.com/r/matrixdotorg/synapse</a> which can be used with
+the docker-compose file available at
+<a href="https://github.com/matrix-org/synapse/tree/develop/contrib/docker">contrib/docker</a>.
+Further information on this including configuration options is available in the README
+on hub.docker.com.</p>
+<p>Alternatively, Andreas Peters (previously Silvio Fricke) has contributed a
+Dockerfile to automate a synapse server in a single Docker image, at
+<a href="https://hub.docker.com/r/avhost/docker-matrix/tags/">https://hub.docker.com/r/avhost/docker-matrix/tags/</a></p>
+<p>Slavi Pantaleev has created an Ansible playbook,
+which installs the offical Docker image of Matrix Synapse
+along with many other Matrix-related services (Postgres database, Element, coturn,
+ma1sd, SSL support, etc.).
+For more details, see
+<a href="https://github.com/spantaleev/matrix-docker-ansible-deploy">https://github.com/spantaleev/matrix-docker-ansible-deploy</a></p>
+<h4 id="debianubuntu"><a class="header" href="#debianubuntu">Debian/Ubuntu</a></h4>
+<h5 id="matrixorg-packages"><a class="header" href="#matrixorg-packages">Matrix.org packages</a></h5>
+<p>Matrix.org provides Debian/Ubuntu packages of Synapse, for the amd64
+architecture via <a href="https://packages.matrix.org/debian/">https://packages.matrix.org/debian/</a>.</p>
+<p>To install the latest release:</p>
+<pre><code class="language-sh">sudo apt install -y lsb-release wget apt-transport-https
+sudo wget -O /usr/share/keyrings/matrix-org-archive-keyring.gpg https://packages.matrix.org/debian/matrix-org-archive-keyring.gpg
+echo &quot;deb [signed-by=/usr/share/keyrings/matrix-org-archive-keyring.gpg] https://packages.matrix.org/debian/ $(lsb_release -cs) main&quot; |
+    sudo tee /etc/apt/sources.list.d/matrix-org.list
+sudo apt update
+sudo apt install matrix-synapse-py3
+</code></pre>
+<p>Packages are also published for release candidates. To enable the prerelease
+channel, add <code>prerelease</code> to the <code>sources.list</code> line. For example:</p>
+<pre><code class="language-sh">sudo wget -O /usr/share/keyrings/matrix-org-archive-keyring.gpg https://packages.matrix.org/debian/matrix-org-archive-keyring.gpg
+echo &quot;deb [signed-by=/usr/share/keyrings/matrix-org-archive-keyring.gpg] https://packages.matrix.org/debian/ $(lsb_release -cs) main prerelease&quot; |
+    sudo tee /etc/apt/sources.list.d/matrix-org.list
+sudo apt update
+sudo apt install matrix-synapse-py3
+</code></pre>
+<p>The fingerprint of the repository signing key (as shown by <code>gpg /usr/share/keyrings/matrix-org-archive-keyring.gpg</code>) is
+<code>AAF9AE843A7584B5A3E4CD2BCF45A512DE2DA058</code>.</p>
+<h5 id="downstream-debian-packages"><a class="header" href="#downstream-debian-packages">Downstream Debian packages</a></h5>
+<p>We do not recommend using the packages from the default Debian <code>buster</code>
+repository at this time, as they are old and suffer from known security
+vulnerabilities. You can install the latest version of Synapse from
+<a href="#matrixorg-packages">our repository</a> or from <code>buster-backports</code>. Please
+see the <a href="https://backports.debian.org/Instructions/">Debian documentation</a>
+for information on how to use backports.</p>
+<p>If you are using Debian <code>sid</code> or testing, Synapse is available in the default
+repositories and it should be possible to install it simply with:</p>
+<pre><code class="language-sh">sudo apt install matrix-synapse
+</code></pre>
+<h5 id="downstream-ubuntu-packages"><a class="header" href="#downstream-ubuntu-packages">Downstream Ubuntu packages</a></h5>
+<p>We do not recommend using the packages in the default Ubuntu repository
+at this time, as they are old and suffer from known security vulnerabilities.
+The latest version of Synapse can be installed from <a href="#matrixorg-packages">our repository</a>.</p>
+<h4 id="fedora"><a class="header" href="#fedora">Fedora</a></h4>
+<p>Synapse is in the Fedora repositories as <code>matrix-synapse</code>:</p>
+<pre><code class="language-sh">sudo dnf install matrix-synapse
+</code></pre>
+<p>Oleg Girko provides Fedora RPMs at
+<a href="https://obs.infoserver.lv/project/monitor/matrix-synapse">https://obs.infoserver.lv/project/monitor/matrix-synapse</a></p>
+<h4 id="opensuse"><a class="header" href="#opensuse">OpenSUSE</a></h4>
+<p>Synapse is in the OpenSUSE repositories as <code>matrix-synapse</code>:</p>
+<pre><code class="language-sh">sudo zypper install matrix-synapse
+</code></pre>
+<h4 id="suse-linux-enterprise-server"><a class="header" href="#suse-linux-enterprise-server">SUSE Linux Enterprise Server</a></h4>
+<p>Unofficial package are built for SLES 15 in the openSUSE:Backports:SLE-15 repository at
+<a href="https://download.opensuse.org/repositories/openSUSE:/Backports:/SLE-15/standard/">https://download.opensuse.org/repositories/openSUSE:/Backports:/SLE-15/standard/</a></p>
+<h4 id="archlinux"><a class="header" href="#archlinux">ArchLinux</a></h4>
+<p>The quickest way to get up and running with ArchLinux is probably with the community package
+<a href="https://www.archlinux.org/packages/community/any/matrix-synapse/">https://www.archlinux.org/packages/community/any/matrix-synapse/</a>, which should pull in most of
+the necessary dependencies.</p>
+<p>pip may be outdated (6.0.7-1 and needs to be upgraded to 6.0.8-1 ):</p>
+<pre><code class="language-sh">sudo pip install --upgrade pip
+</code></pre>
+<p>If you encounter an error with lib bcrypt causing an Wrong ELF Class:
+ELFCLASS32 (x64 Systems), you may need to reinstall py-bcrypt to correctly
+compile it under the right architecture. (This should not be needed if
+installing under virtualenv):</p>
+<pre><code class="language-sh">sudo pip uninstall py-bcrypt
+sudo pip install py-bcrypt
+</code></pre>
+<h4 id="void-linux"><a class="header" href="#void-linux">Void Linux</a></h4>
+<p>Synapse can be found in the void repositories as 'synapse':</p>
+<pre><code class="language-sh">xbps-install -Su
+xbps-install -S synapse
+</code></pre>
+<h4 id="freebsd"><a class="header" href="#freebsd">FreeBSD</a></h4>
+<p>Synapse can be installed via FreeBSD Ports or Packages contributed by Brendan Molloy from:</p>
+<ul>
+<li>Ports: <code>cd /usr/ports/net-im/py-matrix-synapse &amp;&amp; make install clean</code></li>
+<li>Packages: <code>pkg install py37-matrix-synapse</code></li>
+</ul>
+<h4 id="openbsd"><a class="header" href="#openbsd">OpenBSD</a></h4>
+<p>As of OpenBSD 6.7 Synapse is available as a pre-compiled binary. The filesystem
+underlying the homeserver directory (defaults to <code>/var/synapse</code>) has to be
+mounted with <code>wxallowed</code> (cf. <code>mount(8)</code>), so creating a separate filesystem
+and mounting it to <code>/var/synapse</code> should be taken into consideration.</p>
+<p>Installing Synapse:</p>
+<pre><code class="language-sh">doas pkg_add synapse
+</code></pre>
+<h4 id="nixos"><a class="header" href="#nixos">NixOS</a></h4>
+<p>Robin Lambertz has packaged Synapse for NixOS at:
+<a href="https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/matrix-synapse.nix">https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/matrix-synapse.nix</a></p>
+<h3 id="installing-as-a-python-module-from-pypi"><a class="header" href="#installing-as-a-python-module-from-pypi">Installing as a Python module from PyPI</a></h3>
+<p>It's also possible to install Synapse as a Python module from PyPI.</p>
+<p>When following this route please make sure that the <a href="#platform-specific-prerequisites">Platform-specific prerequisites</a> are already installed.</p>
+<p>System requirements:</p>
+<ul>
+<li>POSIX-compliant system (tested on Linux &amp; OS X)</li>
+<li>Python 3.6 or later, up to Python 3.9.</li>
+<li>At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org</li>
+</ul>
+<p>To install the Synapse homeserver run:</p>
+<pre><code class="language-sh">mkdir -p ~/synapse
+virtualenv -p python3 ~/synapse/env
+source ~/synapse/env/bin/activate
+pip install --upgrade pip
+pip install --upgrade setuptools
+pip install matrix-synapse
+</code></pre>
+<p>This will download Synapse from <a href="https://pypi.org/project/matrix-synapse">PyPI</a>
+and install it, along with the python libraries it uses, into a virtual environment
+under <code>~/synapse/env</code>.  Feel free to pick a different directory if you
+prefer.</p>
+<p>This Synapse installation can then be later upgraded by using pip again with the
+update flag:</p>
+<pre><code class="language-sh">source ~/synapse/env/bin/activate
+pip install -U matrix-synapse
+</code></pre>
+<p>Before you can start Synapse, you will need to generate a configuration
+file. To do this, run (in your virtualenv, as before):</p>
+<pre><code class="language-sh">cd ~/synapse
+python -m synapse.app.homeserver \
+    --server-name my.domain.name \
+    --config-path homeserver.yaml \
+    --generate-config \
+    --report-stats=[yes|no]
+</code></pre>
+<p>... substituting an appropriate value for <code>--server-name</code>.</p>
+<p>This command will generate you a config file that you can then customise, but it will
+also generate a set of keys for you. These keys will allow your homeserver to
+identify itself to other homeserver, so don't lose or delete them. It would be
+wise to back them up somewhere safe. (If, for whatever reason, you do need to
+change your homeserver's keys, you may find that other homeserver have the
+old key cached. If you update the signing key, you should change the name of the
+key in the <code>&lt;server name&gt;.signing.key</code> file (the second word) to something
+different. See the <a href="https://matrix.org/docs/spec/server_server/latest.html#retrieving-server-keys">spec</a> for more information on key management).</p>
+<p>To actually run your new homeserver, pick a working directory for Synapse to
+run (e.g. <code>~/synapse</code>), and:</p>
+<pre><code class="language-sh">cd ~/synapse
+source env/bin/activate
+synctl start
+</code></pre>
+<h4 id="platform-specific-prerequisites"><a class="header" href="#platform-specific-prerequisites">Platform-specific prerequisites</a></h4>
+<p>Synapse is written in Python but some of the libraries it uses are written in
+C. So before we can install Synapse itself we need a working C compiler and the
+header files for Python C extensions.</p>
+<h5 id="debianubunturaspbian"><a class="header" href="#debianubunturaspbian">Debian/Ubuntu/Raspbian</a></h5>
+<p>Installing prerequisites on Ubuntu or Debian:</p>
+<pre><code class="language-sh">sudo apt install build-essential python3-dev libffi-dev \
+                     python3-pip python3-setuptools sqlite3 \
+                     libssl-dev virtualenv libjpeg-dev libxslt1-dev
+</code></pre>
+<h5 id="archlinux-1"><a class="header" href="#archlinux-1">ArchLinux</a></h5>
+<p>Installing prerequisites on ArchLinux:</p>
+<pre><code class="language-sh">sudo pacman -S base-devel python python-pip \
+               python-setuptools python-virtualenv sqlite3
+</code></pre>
+<h5 id="centosfedora"><a class="header" href="#centosfedora">CentOS/Fedora</a></h5>
+<p>Installing prerequisites on CentOS or Fedora Linux:</p>
+<pre><code class="language-sh">sudo dnf install libtiff-devel libjpeg-devel libzip-devel freetype-devel \
+                 libwebp-devel libxml2-devel libxslt-devel libpq-devel \
+                 python3-virtualenv libffi-devel openssl-devel python3-devel
+sudo dnf groupinstall &quot;Development Tools&quot;
+</code></pre>
+<h5 id="macos"><a class="header" href="#macos">macOS</a></h5>
+<p>Installing prerequisites on macOS:</p>
+<p>You may need to install the latest Xcode developer tools:</p>
+<pre><code class="language-sh">xcode-select --install
+</code></pre>
+<p>On ARM-based Macs you may need to explicitly install libjpeg which is a pillow dependency. You can use Homebrew (https://brew.sh):</p>
+<pre><code class="language-sh"> brew install jpeg
+</code></pre>
+<p>On macOS Catalina (10.15) you may need to explicitly install OpenSSL
+via brew and inform <code>pip</code> about it so that <code>psycopg2</code> builds:</p>
+<pre><code class="language-sh">brew install openssl@1.1
+export LDFLAGS=&quot;-L/usr/local/opt/openssl/lib&quot;
+export CPPFLAGS=&quot;-I/usr/local/opt/openssl/include&quot;
+</code></pre>
+<h5 id="opensuse-1"><a class="header" href="#opensuse-1">OpenSUSE</a></h5>
+<p>Installing prerequisites on openSUSE:</p>
+<pre><code class="language-sh">sudo zypper in -t pattern devel_basis
+sudo zypper in python-pip python-setuptools sqlite3 python-virtualenv \
+               python-devel libffi-devel libopenssl-devel libjpeg62-devel
+</code></pre>
+<h5 id="openbsd-1"><a class="header" href="#openbsd-1">OpenBSD</a></h5>
+<p>A port of Synapse is available under <code>net/synapse</code>. The filesystem
+underlying the homeserver directory (defaults to <code>/var/synapse</code>) has to be
+mounted with <code>wxallowed</code> (cf. <code>mount(8)</code>), so creating a separate filesystem
+and mounting it to <code>/var/synapse</code> should be taken into consideration.</p>
+<p>To be able to build Synapse's dependency on python the <code>WRKOBJDIR</code>
+(cf. <code>bsd.port.mk(5)</code>) for building python, too, needs to be on a filesystem
+mounted with <code>wxallowed</code> (cf. <code>mount(8)</code>).</p>
+<p>Creating a <code>WRKOBJDIR</code> for building python under <code>/usr/local</code> (which on a
+default OpenBSD installation is mounted with <code>wxallowed</code>):</p>
+<pre><code class="language-sh">doas mkdir /usr/local/pobj_wxallowed
+</code></pre>
+<p>Assuming <code>PORTS_PRIVSEP=Yes</code> (cf. <code>bsd.port.mk(5)</code>) and <code>SUDO=doas</code> are
+configured in <code>/etc/mk.conf</code>:</p>
+<pre><code class="language-sh">doas chown _pbuild:_pbuild /usr/local/pobj_wxallowed
+</code></pre>
+<p>Setting the <code>WRKOBJDIR</code> for building python:</p>
+<pre><code class="language-sh">echo WRKOBJDIR_lang/python/3.7=/usr/local/pobj_wxallowed  \\nWRKOBJDIR_lang/python/2.7=/usr/local/pobj_wxallowed &gt;&gt; /etc/mk.conf
+</code></pre>
+<p>Building Synapse:</p>
+<pre><code class="language-sh">cd /usr/ports/net/synapse
+make install
+</code></pre>
+<h5 id="windows"><a class="header" href="#windows">Windows</a></h5>
+<p>If you wish to run or develop Synapse on Windows, the Windows Subsystem For
+Linux provides a Linux environment on Windows 10 which is capable of using the
+Debian, Fedora, or source installation methods. More information about WSL can
+be found at <a href="https://docs.microsoft.com/en-us/windows/wsl/install-win10">https://docs.microsoft.com/en-us/windows/wsl/install-win10</a> for
+Windows 10 and <a href="https://docs.microsoft.com/en-us/windows/wsl/install-on-server">https://docs.microsoft.com/en-us/windows/wsl/install-on-server</a>
+for Windows Server.</p>
+<h2 id="setting-up-synapse"><a class="header" href="#setting-up-synapse">Setting up Synapse</a></h2>
+<p>Once you have installed synapse as above, you will need to configure it.</p>
+<h3 id="using-postgresql"><a class="header" href="#using-postgresql">Using PostgreSQL</a></h3>
+<p>By default Synapse uses an <a href="https://sqlite.org/">SQLite</a> database and in doing so trades
+performance for convenience. Almost all installations should opt to use <a href="https://www.postgresql.org">PostgreSQL</a>
+instead. Advantages include:</p>
+<ul>
+<li>significant performance improvements due to the superior threading and
+caching model, smarter query optimiser</li>
+<li>allowing the DB to be run on separate hardware</li>
+</ul>
+<p>For information on how to install and use PostgreSQL in Synapse, please see
+<a href="../postgres.html">Using Postgres</a></p>
+<p>SQLite is only acceptable for testing purposes. SQLite should not be used in
+a production server. Synapse will perform poorly when using
+SQLite, especially when participating in large rooms.</p>
+<h3 id="tls-certificates"><a class="header" href="#tls-certificates">TLS certificates</a></h3>
+<p>The default configuration exposes a single HTTP port on the local
+interface: <code>http://localhost:8008</code>. It is suitable for local testing,
+but for any practical use, you will need Synapse's APIs to be served
+over HTTPS.</p>
+<p>The recommended way to do so is to set up a reverse proxy on port
+<code>8448</code>. You can find documentation on doing so in
+<a href="../reverse_proxy.html">the reverse proxy documentation</a>.</p>
+<p>Alternatively, you can configure Synapse to expose an HTTPS port. To do
+so, you will need to edit <code>homeserver.yaml</code>, as follows:</p>
+<ul>
+<li>First, under the <code>listeners</code> section, uncomment the configuration for the
+TLS-enabled listener. (Remove the hash sign (<code>#</code>) at the start of
+each line). The relevant lines are like this:</li>
+</ul>
+<pre><code class="language-yaml">  - port: 8448
+    type: http
+    tls: true
+    resources:
+      - names: [client, federation]
+</code></pre>
+<ul>
+<li>
+<p>You will also need to uncomment the <code>tls_certificate_path</code> and
+<code>tls_private_key_path</code> lines under the <code>TLS</code> section. You will need to manage
+provisioning of these certificates yourself.</p>
+<p>If you are using your own certificate, be sure to use a <code>.pem</code> file that
+includes the full certificate chain including any intermediate certificates
+(for instance, if using certbot, use <code>fullchain.pem</code> as your certificate, not
+<code>cert.pem</code>).</p>
+</li>
+</ul>
+<p>For a more detailed guide to configuring your server for federation, see
+<a href="../federate.html">Federation</a>.</p>
+<h3 id="client-well-known-uri"><a class="header" href="#client-well-known-uri">Client Well-Known URI</a></h3>
+<p>Setting up the client Well-Known URI is optional but if you set it up, it will
+allow users to enter their full username (e.g. <code>@user:&lt;server_name&gt;</code>) into clients
+which support well-known lookup to automatically configure the homeserver and
+identity server URLs. This is useful so that users don't have to memorize or think
+about the actual homeserver URL you are using.</p>
+<p>The URL <code>https://&lt;server_name&gt;/.well-known/matrix/client</code> should return JSON in
+the following format.</p>
+<pre><code class="language-json">{
+  &quot;m.homeserver&quot;: {
+    &quot;base_url&quot;: &quot;https://&lt;matrix.example.com&gt;&quot;
+  }
+}
+</code></pre>
+<p>It can optionally contain identity server information as well.</p>
+<pre><code class="language-json">{
+  &quot;m.homeserver&quot;: {
+    &quot;base_url&quot;: &quot;https://&lt;matrix.example.com&gt;&quot;
+  },
+  &quot;m.identity_server&quot;: {
+    &quot;base_url&quot;: &quot;https://&lt;identity.example.com&gt;&quot;
+  }
+}
+</code></pre>
+<p>To work in browser based clients, the file must be served with the appropriate
+Cross-Origin Resource Sharing (CORS) headers. A recommended value would be
+<code>Access-Control-Allow-Origin: *</code> which would allow all browser based clients to
+view it.</p>
+<p>In nginx this would be something like:</p>
+<pre><code class="language-nginx">location /.well-known/matrix/client {
+    return 200 '{&quot;m.homeserver&quot;: {&quot;base_url&quot;: &quot;https://&lt;matrix.example.com&gt;&quot;}}';
+    default_type application/json;
+    add_header Access-Control-Allow-Origin *;
+}
+</code></pre>
+<p>You should also ensure the <code>public_baseurl</code> option in <code>homeserver.yaml</code> is set
+correctly. <code>public_baseurl</code> should be set to the URL that clients will use to
+connect to your server. This is the same URL you put for the <code>m.homeserver</code>
+<code>base_url</code> above.</p>
+<pre><code class="language-yaml">public_baseurl: &quot;https://&lt;matrix.example.com&gt;&quot;
+</code></pre>
+<h3 id="email"><a class="header" href="#email">Email</a></h3>
+<p>It is desirable for Synapse to have the capability to send email. This allows
+Synapse to send password reset emails, send verifications when an email address
+is added to a user's account, and send email notifications to users when they
+receive new messages.</p>
+<p>To configure an SMTP server for Synapse, modify the configuration section
+headed <code>email</code>, and be sure to have at least the <code>smtp_host</code>, <code>smtp_port</code>
+and <code>notif_from</code> fields filled out.  You may also need to set <code>smtp_user</code>,
+<code>smtp_pass</code>, and <code>require_transport_security</code>.</p>
+<p>If email is not configured, password reset, registration and notifications via
+email will be disabled.</p>
+<h3 id="registering-a-user"><a class="header" href="#registering-a-user">Registering a user</a></h3>
+<p>The easiest way to create a new user is to do so from a client like <a href="https://element.io/">Element</a>.</p>
+<p>Alternatively, you can do so from the command line. This can be done as follows:</p>
+<ol>
+<li>If synapse was installed via pip, activate the virtualenv as follows (if Synapse was
+installed via a prebuilt package, <code>register_new_matrix_user</code> should already be
+on the search path):
+<pre><code class="language-sh">cd ~/synapse
+source env/bin/activate
+synctl start # if not already running
+</code></pre>
+</li>
+<li>Run the following command:
+<pre><code class="language-sh">register_new_matrix_user -c homeserver.yaml http://localhost:8008
+</code></pre>
+</li>
+</ol>
+<p>This will prompt you to add details for the new user, and will then connect to
+the running Synapse to create the new user. For example:</p>
+<pre><code>New user localpart: erikj
+Password:
+Confirm password:
+Make admin [no]:
+Success!
+</code></pre>
+<p>This process uses a setting <code>registration_shared_secret</code> in
+<code>homeserver.yaml</code>, which is shared between Synapse itself and the
+<code>register_new_matrix_user</code> script. It doesn't matter what it is (a random
+value is generated by <code>--generate-config</code>), but it should be kept secret, as
+anyone with knowledge of it can register users, including admin accounts,
+on your server even if <code>enable_registration</code> is <code>false</code>.</p>
+<h3 id="setting-up-a-turn-server"><a class="header" href="#setting-up-a-turn-server">Setting up a TURN server</a></h3>
+<p>For reliable VoIP calls to be routed via this homeserver, you MUST configure
+a TURN server. See <a href="../turn-howto.html">TURN setup</a> for details.</p>
+<h3 id="url-previews"><a class="header" href="#url-previews">URL previews</a></h3>
+<p>Synapse includes support for previewing URLs, which is disabled by default.  To
+turn it on you must enable the <code>url_preview_enabled: True</code> config parameter
+and explicitly specify the IP ranges that Synapse is not allowed to spider for
+previewing in the <code>url_preview_ip_range_blacklist</code> configuration parameter.
+This is critical from a security perspective to stop arbitrary Matrix users
+spidering 'internal' URLs on your network. At the very least we recommend that
+your loopback and RFC1918 IP addresses are blacklisted.</p>
+<p>This also requires the optional <code>lxml</code> python dependency to be  installed. This
+in turn requires the <code>libxml2</code> library to be available - on  Debian/Ubuntu this
+means <code>apt-get install libxml2-dev</code>, or equivalent for your OS.</p>
+<h3 id="troubleshooting-installation"><a class="header" href="#troubleshooting-installation">Troubleshooting Installation</a></h3>
+<p><code>pip</code> seems to leak <em>lots</em> of memory during installation. For instance, a Linux
+host with 512MB of RAM may run out of memory whilst installing Twisted. If this
+happens, you will have to individually install the dependencies which are
+failing, e.g.:</p>
+<pre><code class="language-sh">pip install twisted
+</code></pre>
+<p>If you have any other problems, feel free to ask in
+<a href="https://matrix.to/#/#synapse:matrix.org">#synapse:matrix.org</a>.</p>
+
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