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diff --git a/develop/print.html b/develop/print.html index c11ec48994..d44243d241 100644 --- a/develop/print.html +++ b/develop/print.html @@ -101,7 +101,7 @@ <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 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 "><a href="MSC1711_certificates_FAQ.html">Upgrading from pre-Synapse 1.0</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/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="development/url_previews.html">URL Previews</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="modules/writing_a_module.html">Writing a module</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/spam_checker_callbacks.html">Spam checker callbacks</a></li><li class="chapter-item expanded "><a href="modules/third_party_rules_callbacks.html">Third-party rules callbacks</a></li><li class="chapter-item expanded "><a href="modules/presence_router_callbacks.html">Presence 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/password_auth_provider_callbacks.html">Password auth provider callbacks</a></li><li class="chapter-item expanded "><a href="modules/background_update_controller_callbacks.html">Background update controller 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 class="chapter-item expanded "><a href="usage/administration/admin_api/background_updates.html">Background Updates</a></li><li class="chapter-item expanded "><a href="admin_api/delete_group.html">Delete Group</a></li><li class="chapter-item expanded "><a href="admin_api/event_reports.html">Event Reports</a></li><li class="chapter-item expanded "><a href="admin_api/media_admin_api.html">Media</a></li><li class="chapter-item expanded "><a href="admin_api/purge_history_api.html">Purge History</a></li><li class="chapter-item expanded "><a href="admin_api/register_api.html">Register Users</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/registration_tokens.html">Registration Tokens</a></li><li class="chapter-item expanded "><a href="admin_api/room_membership.html">Manipulate Room Membership</a></li><li class="chapter-item expanded "><a href="admin_api/rooms.html">Rooms</a></li><li class="chapter-item expanded "><a href="admin_api/server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="admin_api/statistics.html">Statistics</a></li><li class="chapter-item expanded "><a href="admin_api/user_admin_api.html">Users</a></li><li class="chapter-item expanded "><a href="admin_api/version_api.html">Server Version</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/federation.html">Federation</a></li></ol></li><li class="chapter-item expanded "><a href="manhole.html">Manhole</a></li><li class="chapter-item expanded "><a href="metrics-howto.html">Monitoring</a></li><li class="chapter-item expanded "><a href="usage/administration/understanding_synapse_through_grafana_graphs.html">Understanding Synapse Through Grafana Graphs</a></li><li class="chapter-item expanded "><a href="usage/administration/useful_sql_for_admins.html">Useful SQL for Admins</a></li><li class="chapter-item expanded "><a href="usage/administration/database_maintenance_tools.html">Database Maintenance Tools</a></li><li class="chapter-item expanded "><a href="usage/administration/state_groups.html">State Groups</a></li><li class="chapter-item expanded "><a href="usage/administration/request_log.html">Request log 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/git.html">Git Usage</a></li><li class="chapter-item expanded "><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><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> + <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 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/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="development/url_previews.html">URL Previews</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="modules/writing_a_module.html">Writing a module</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/spam_checker_callbacks.html">Spam checker callbacks</a></li><li class="chapter-item expanded "><a href="modules/third_party_rules_callbacks.html">Third-party rules callbacks</a></li><li class="chapter-item expanded "><a href="modules/presence_router_callbacks.html">Presence 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/password_auth_provider_callbacks.html">Password auth provider callbacks</a></li><li class="chapter-item expanded "><a href="modules/background_update_controller_callbacks.html">Background update controller 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 class="chapter-item expanded "><a href="usage/administration/admin_api/background_updates.html">Background Updates</a></li><li class="chapter-item expanded "><a href="admin_api/delete_group.html">Delete Group</a></li><li class="chapter-item expanded "><a href="admin_api/event_reports.html">Event Reports</a></li><li class="chapter-item expanded "><a href="admin_api/media_admin_api.html">Media</a></li><li class="chapter-item expanded "><a href="admin_api/purge_history_api.html">Purge History</a></li><li class="chapter-item expanded "><a href="admin_api/register_api.html">Register Users</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/registration_tokens.html">Registration Tokens</a></li><li class="chapter-item expanded "><a href="admin_api/room_membership.html">Manipulate Room Membership</a></li><li class="chapter-item expanded "><a href="admin_api/rooms.html">Rooms</a></li><li class="chapter-item expanded "><a href="admin_api/server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="admin_api/statistics.html">Statistics</a></li><li class="chapter-item expanded "><a href="admin_api/user_admin_api.html">Users</a></li><li class="chapter-item expanded "><a href="admin_api/version_api.html">Server Version</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/federation.html">Federation</a></li></ol></li><li class="chapter-item expanded "><a href="manhole.html">Manhole</a></li><li class="chapter-item expanded "><a href="metrics-howto.html">Monitoring</a></li><li class="chapter-item expanded "><a href="usage/administration/understanding_synapse_through_grafana_graphs.html">Understanding Synapse Through Grafana Graphs</a></li><li class="chapter-item expanded "><a href="usage/administration/useful_sql_for_admins.html">Useful SQL for Admins</a></li><li class="chapter-item expanded "><a href="usage/administration/database_maintenance_tools.html">Database Maintenance Tools</a></li><li class="chapter-item expanded "><a href="usage/administration/state_groups.html">State Groups</a></li><li class="chapter-item expanded "><a href="usage/administration/request_log.html">Request log 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/git.html">Git Usage</a></li><li class="chapter-item expanded "><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><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> @@ -2462,8 +2462,7 @@ more details on upgrading your database.</p> <h2 id="validation-of-tls-certificates"><a class="header" href="#validation-of-tls-certificates">Validation of TLS certificates</a></h2> <p>Synapse v1.0 is the first release to enforce validation of TLS certificates for the federation API. It is therefore essential that your -certificates are correctly configured. See the -<a href="MSC1711_certificates_FAQ.html">FAQ</a> for more information.</p> +certificates are correctly configured.</p> <p>Note, v1.0 installations will also no longer be able to federate with servers that have not correctly configured their certificates.</p> <p>In rare cases, it may be desirable to disable certificate checking: for @@ -2513,8 +2512,6 @@ sent to them.</p> you will need to replace any self-signed certificates with those verified by a root CA. Information on how to do so can be found at the ACME docs.</p> -<p>For more information on configuring TLS certificates see the -<a href="MSC1711_certificates_FAQ.html">FAQ</a>.</p> <h1 id="upgrading-to-v0340"><a class="header" href="#upgrading-to-v0340">Upgrading to v0.34.0</a></h1> <ol> <li> @@ -2803,257 +2800,6 @@ longer to restart than usual as it reinitializes the database.</p> using room aliases or by being reinvited. Alternatively, if any other homeserver sends a message to a room that the homeserver was previously in the local HS will automatically rejoin the room.</p> -<div id="chapter_begin" style="break-before: page; page-break-before: always;"></div><h1 id="msc1711-certificates-faq"><a class="header" href="#msc1711-certificates-faq">MSC1711 Certificates FAQ</a></h1> -<h2 id="historical-note"><a class="header" href="#historical-note">Historical Note</a></h2> -<p>This document was originally written to guide server admins through the upgrade -path towards Synapse 1.0. Specifically, -<a href="https://github.com/matrix-org/matrix-doc/blob/main/proposals/1711-x509-for-federation.md">MSC1711</a> -required that all servers present valid TLS certificates on their federation -API. Admins were encouraged to achieve compliance from version 0.99.0 (released -in February 2019) ahead of version 1.0 (released June 2019) enforcing the -certificate checks.</p> -<p>Much of what follows is now outdated since most admins will have already -upgraded, however it may be of use to those with old installs returning to the -project.</p> -<p>If you are setting up a server from scratch you almost certainly should look at -the <a href="setup/installation.html">installation guide</a> instead.</p> -<h2 id="introduction-1"><a class="header" href="#introduction-1">Introduction</a></h2> -<p>The goal of Synapse 0.99.0 is to act as a stepping stone to Synapse 1.0.0. It -supports the r0.1 release of the server to server specification, but is -compatible with both the legacy Matrix federation behaviour (pre-r0.1) as well -as post-r0.1 behaviour, in order to allow for a smooth upgrade across the -federation.</p> -<p>The most important thing to know is that Synapse 1.0.0 will require a valid TLS -certificate on federation endpoints. Self signed certificates will not be -sufficient.</p> -<p>Synapse 0.99.0 makes it easy to configure TLS certificates and will -interoperate with both >= 1.0.0 servers as well as existing servers yet to -upgrade.</p> -<p><strong>It is critical that all admins upgrade to 0.99.0 and configure a valid TLS -certificate.</strong> Admins will have 1 month to do so, after which 1.0.0 will be -released and those servers without a valid certificate will not longer be able -to federate with >= 1.0.0 servers.</p> -<p>Full details on how to carry out this configuration change is given -<a href="MSC1711_certificates_FAQ.html#configuring-certificates-for-compatibility-with-synapse-100">below</a>. A -timeline and some frequently asked questions are also given below.</p> -<p>For more details and context on the release of the r0.1 Server/Server API and -imminent Matrix 1.0 release, you can also see our -<a href="https://matrix.org/blog/2019/02/04/matrix-at-fosdem-2019/">main talk from FOSDEM 2019</a>.</p> -<h2 id="timeline"><a class="header" href="#timeline">Timeline</a></h2> -<p><strong>5th Feb 2019 - Synapse 0.99.0 is released.</strong></p> -<p>All server admins are encouraged to upgrade.</p> -<p>0.99.0:</p> -<ul> -<li> -<p>provides support for ACME to make setting up Let's Encrypt certs easy, as -well as .well-known support.</p> -</li> -<li> -<p>does not enforce that a valid CA cert is present on the federation API, but -rather makes it easy to set one up.</p> -</li> -<li> -<p>provides support for .well-known</p> -</li> -</ul> -<p>Admins should upgrade and configure a valid CA cert. Homeservers that require a -.well-known entry (see below), should retain their SRV record and use it -alongside their .well-known record.</p> -<p><strong>10th June 2019 - Synapse 1.0.0 is released</strong></p> -<p>1.0.0 is scheduled for release on 10th June. In -accordance with the the <a href="https://matrix.org/docs/spec/server_server/r0.1.0.html">S2S spec</a> -1.0.0 will enforce certificate validity. This means that any homeserver without a -valid certificate after this point will no longer be able to federate with -1.0.0 servers.</p> -<h2 id="configuring-certificates-for-compatibility-with-synapse-100"><a class="header" href="#configuring-certificates-for-compatibility-with-synapse-100">Configuring certificates for compatibility with Synapse 1.0.0</a></h2> -<h3 id="if-you-do-not-currently-have-an-srv-record"><a class="header" href="#if-you-do-not-currently-have-an-srv-record">If you do not currently have an SRV record</a></h3> -<p>In this case, your <code>server_name</code> points to the host where your Synapse is -running. There is no need to create a <code>.well-known</code> URI or an SRV record, but -you will need to give Synapse a valid, signed, certificate.</p> -<h3 id="if-you-do-have-an-srv-record-currently"><a class="header" href="#if-you-do-have-an-srv-record-currently">If you do have an SRV record currently</a></h3> -<p>If you are using an SRV record, your matrix domain (<code>server_name</code>) may not -point to the same host that your Synapse is running on (the 'target -domain'). (If it does, you can follow the recommendation above; otherwise, read -on.)</p> -<p>Let's assume that your <code>server_name</code> is <code>example.com</code>, and your Synapse is -hosted at a target domain of <code>customer.example.net</code>. Currently you should have -an SRV record which looks like:</p> -<pre><code>_matrix._tcp.example.com. IN SRV 10 5 8000 customer.example.net. -</code></pre> -<p>In this situation, you have three choices for how to proceed:</p> -<h4 id="option-1-give-synapse-a-certificate-for-your-matrix-domain"><a class="header" href="#option-1-give-synapse-a-certificate-for-your-matrix-domain">Option 1: give Synapse a certificate for your matrix domain</a></h4> -<p>Synapse 1.0 will expect your server to present a TLS certificate for your -<code>server_name</code> (<code>example.com</code> in the above example). You can achieve this by acquiring a -certificate for the <code>server_name</code> yourself (for example, using <code>certbot</code>), and giving it -and the key to Synapse via <code>tls_certificate_path</code> and <code>tls_private_key_path</code>.</p> -<h4 id="option-2-run-synapse-behind-a-reverse-proxy"><a class="header" href="#option-2-run-synapse-behind-a-reverse-proxy">Option 2: run Synapse behind a reverse proxy</a></h4> -<p>If you have an existing reverse proxy set up with correct TLS certificates for -your domain, you can simply route all traffic through the reverse proxy by -updating the SRV record appropriately (or removing it, if the proxy listens on -8448).</p> -<p>See <a href="reverse_proxy.html">the reverse proxy documentation</a> for information on setting up a -reverse proxy.</p> -<h4 id="option-3-add-a-well-known-file-to-delegate-your-matrix-traffic"><a class="header" href="#option-3-add-a-well-known-file-to-delegate-your-matrix-traffic">Option 3: add a .well-known file to delegate your matrix traffic</a></h4> -<p>This will allow you to keep Synapse on a separate domain, without having to -give it a certificate for the matrix domain.</p> -<p>You can do this with a <code>.well-known</code> file as follows:</p> -<ol> -<li> -<p>Keep the SRV record in place - it is needed for backwards compatibility -with Synapse 0.34 and earlier.</p> -</li> -<li> -<p>Give Synapse a certificate corresponding to the target domain -(<code>customer.example.net</code> in the above example). You can do this by acquire a -certificate for the target domain and giving it to Synapse via <code>tls_certificate_path</code> -and <code>tls_private_key_path</code>.</p> -</li> -<li> -<p>Restart Synapse to ensure the new certificate is loaded.</p> -</li> -<li> -<p>Arrange for a <code>.well-known</code> file at -<code>https://<server_name>/.well-known/matrix/server</code> with contents:</p> -<pre><code class="language-json">{"m.server": "<target server name>"} -</code></pre> -<p>where the target server name is resolved as usual (i.e. SRV lookup, falling -back to talking to port 8448).</p> -<p>In the above example, where synapse is listening on port 8000, -<code>https://example.com/.well-known/matrix/server</code> should have <code>m.server</code> set to one of:</p> -<ol> -<li> -<p><code>customer.example.net</code> ─ with a SRV record on -<code>_matrix._tcp.customer.example.com</code> pointing to port 8000, or:</p> -</li> -<li> -<p><code>customer.example.net</code> ─ updating synapse to listen on the default port -8448, or:</p> -</li> -<li> -<p><code>customer.example.net:8000</code> ─ ensuring that if there is a reverse proxy -on <code>customer.example.net:8000</code> it correctly handles HTTP requests with -Host header set to <code>customer.example.net:8000</code>.</p> -</li> -</ol> -</li> -</ol> -<h2 id="faq"><a class="header" href="#faq">FAQ</a></h2> -<h3 id="synapse-0990-has-just-been-released-what-do-i-need-to-do-right-now"><a class="header" href="#synapse-0990-has-just-been-released-what-do-i-need-to-do-right-now">Synapse 0.99.0 has just been released, what do I need to do right now?</a></h3> -<p>Upgrade as soon as you can in preparation for Synapse 1.0.0, and update your -TLS certificates as <a href="MSC1711_certificates_FAQ.html#configuring-certificates-for-compatibility-with-synapse-100">above</a>.</p> -<h3 id="what-will-happen-if-i-do-not-set-up-a-valid-federation-certificate-immediately"><a class="header" href="#what-will-happen-if-i-do-not-set-up-a-valid-federation-certificate-immediately">What will happen if I do not set up a valid federation certificate immediately?</a></h3> -<p>Nothing initially, but once 1.0.0 is in the wild it will not be possible to -federate with 1.0.0 servers.</p> -<h3 id="what-will-happen-if-i-do-nothing-at-all"><a class="header" href="#what-will-happen-if-i-do-nothing-at-all">What will happen if I do nothing at all?</a></h3> -<p>If the admin takes no action at all, and remains on a Synapse < 0.99.0 then the -homeserver will be unable to federate with those who have implemented -.well-known. Then, as above, once the month upgrade window has expired the -homeserver will not be able to federate with any Synapse >= 1.0.0</p> -<h3 id="when-do-i-need-a-srv-record-or-well-known-uri"><a class="header" href="#when-do-i-need-a-srv-record-or-well-known-uri">When do I need a SRV record or .well-known URI?</a></h3> -<p>If your homeserver listens on the default federation port (8448), and your -<code>server_name</code> points to the host that your homeserver runs on, you do not need an -SRV record or <code>.well-known/matrix/server</code> URI.</p> -<p>For instance, if you registered <code>example.com</code> and pointed its DNS A record at a -fresh Upcloud VPS or similar, you could install Synapse 0.99 on that host, -giving it a server_name of <code>example.com</code>, and it would automatically generate a -valid TLS certificate for you via Let's Encrypt and no SRV record or -<code>.well-known</code> URI would be needed.</p> -<p>This is the common case, although you can add an SRV record or -<code>.well-known/matrix/server</code> URI for completeness if you wish.</p> -<p><strong>However</strong>, if your server does not listen on port 8448, or if your <code>server_name</code> -does not point to the host that your homeserver runs on, you will need to let -other servers know how to find it.</p> -<p>In this case, you should see <a href="MSC1711_certificates_FAQ.html#if-you-do-have-an-srv-record-currently">"If you do have an SRV record -currently"</a> above.</p> -<h3 id="can-i-still-use-an-srv-record"><a class="header" href="#can-i-still-use-an-srv-record">Can I still use an SRV record?</a></h3> -<p>Firstly, if you didn't need an SRV record before (because your server is -listening on port 8448 of your server_name), you certainly don't need one now: -the defaults are still the same.</p> -<p>If you previously had an SRV record, you can keep using it provided you are -able to give Synapse a TLS certificate corresponding to your server name. For -example, suppose you had the following SRV record, which directs matrix traffic -for example.com to matrix.example.com:443:</p> -<pre><code>_matrix._tcp.example.com. IN SRV 10 5 443 matrix.example.com -</code></pre> -<p>In this case, Synapse must be given a certificate for example.com - or be -configured to acquire one from Let's Encrypt.</p> -<p>If you are unable to give Synapse a certificate for your server_name, you will -also need to use a .well-known URI instead. However, see also "I have created a -.well-known URI. Do I still need an SRV record?".</p> -<h3 id="i-have-created-a-well-known-uri-do-i-still-need-an-srv-record"><a class="header" href="#i-have-created-a-well-known-uri-do-i-still-need-an-srv-record">I have created a .well-known URI. Do I still need an SRV record?</a></h3> -<p>As of Synapse 0.99, Synapse will first check for the existence of a <code>.well-known</code> -URI and follow any delegation it suggests. It will only then check for the -existence of an SRV record.</p> -<p>That means that the SRV record will often be redundant. However, you should -remember that there may still be older versions of Synapse in the federation -which do not understand <code>.well-known</code> URIs, so if you removed your SRV record you -would no longer be able to federate with them.</p> -<p>It is therefore best to leave the SRV record in place for now. Synapse 0.34 and -earlier will follow the SRV record (and not care about the invalid -certificate). Synapse 0.99 and later will follow the .well-known URI, with the -correct certificate chain.</p> -<h3 id="it-used-to-work-just-fine-why-are-you-breaking-everything"><a class="header" href="#it-used-to-work-just-fine-why-are-you-breaking-everything">It used to work just fine, why are you breaking everything?</a></h3> -<p>We have always wanted Matrix servers to be as easy to set up as possible, and -so back when we started federation in 2014 we didn't want admins to have to go -through the cumbersome process of buying a valid TLS certificate to run a -server. This was before Let's Encrypt came along and made getting a free and -valid TLS certificate straightforward. So instead, we adopted a system based on -<a href="https://en.wikipedia.org/wiki/Convergence_(SSL)">Perspectives</a>: an approach -where you check a set of "notary servers" (in practice, homeservers) to vouch -for the validity of a certificate rather than having it signed by a CA. As long -as enough different notaries agree on the certificate's validity, then it is -trusted.</p> -<p>However, in practice this has never worked properly. Most people only use the -default notary server (matrix.org), leading to inadvertent centralisation which -we want to eliminate. Meanwhile, we never implemented the full consensus -algorithm to query the servers participating in a room to determine consensus -on whether a given certificate is valid. This is fiddly to get right -(especially in face of sybil attacks), and we found ourselves questioning -whether it was worth the effort to finish the work and commit to maintaining a -secure certificate validation system as opposed to focusing on core Matrix -development.</p> -<p>Meanwhile, Let's Encrypt came along in 2016, and put the final nail in the -coffin of the Perspectives project (which was already pretty dead). So, the -Spec Core Team decided that a better approach would be to mandate valid TLS -certificates for federation alongside the rest of the Web. More details can be -found in -<a href="https://github.com/matrix-org/matrix-doc/blob/main/proposals/1711-x509-for-federation.md#background-the-failure-of-the-perspectives-approach">MSC1711</a>.</p> -<p>This results in a breaking change, which is disruptive, but absolutely critical -for the security model. However, the existence of Let's Encrypt as a trivial -way to replace the old self-signed certificates with valid CA-signed ones helps -smooth things over massively, especially as Synapse can now automate Let's -Encrypt certificate generation if needed.</p> -<h3 id="can-i-manage-my-own-certificates-rather-than-having-synapse-renew-certificates-itself"><a class="header" href="#can-i-manage-my-own-certificates-rather-than-having-synapse-renew-certificates-itself">Can I manage my own certificates rather than having Synapse renew certificates itself?</a></h3> -<p>Yes, you are welcome to manage your certificates yourself. Synapse will only -attempt to obtain certificates from Let's Encrypt if you configure it to do -so.The only requirement is that there is a valid TLS cert present for -federation end points.</p> -<h3 id="do-you-still-recommend-against-using-a-reverse-proxy-on-the-federation-port"><a class="header" href="#do-you-still-recommend-against-using-a-reverse-proxy-on-the-federation-port">Do you still recommend against using a reverse proxy on the federation port?</a></h3> -<p>We no longer actively recommend against using a reverse proxy. Many admins will -find it easier to direct federation traffic to a reverse proxy and manage their -own TLS certificates, and this is a supported configuration.</p> -<p>See <a href="reverse_proxy.html">the reverse proxy documentation</a> for information on setting up a -reverse proxy.</p> -<h3 id="do-i-still-need-to-give-my-tls-certificates-to-synapse-if-i-am-using-a-reverse-proxy"><a class="header" href="#do-i-still-need-to-give-my-tls-certificates-to-synapse-if-i-am-using-a-reverse-proxy">Do I still need to give my TLS certificates to Synapse if I am using a reverse proxy?</a></h3> -<p>Practically speaking, this is no longer necessary.</p> -<p>If you are using a reverse proxy for all of your TLS traffic, then you can set -<code>no_tls: True</code>. In that case, the only reason Synapse needs the certificate is -to populate a legacy 'tls_fingerprints' field in the federation API. This is -ignored by Synapse 0.99.0 and later, and the only time pre-0.99 Synapses will -check it is when attempting to fetch the server keys - and generally this is -delegated via <code>matrix.org</code>, which is on 0.99.0.</p> -<p>However, there is a bug in Synapse 0.99.0 -<a href="https://github.com/matrix-org/synapse/issues/4554">4554</a> which prevents -Synapse from starting if you do not give it a TLS certificate. To work around -this, you can give it any TLS certificate at all. This will be fixed soon.</p> -<h3 id="do-i-need-the-same-certificate-for-the-client-and-federation-port"><a class="header" href="#do-i-need-the-same-certificate-for-the-client-and-federation-port">Do I need the same certificate for the client and federation port?</a></h3> -<p>No. There is nothing stopping you from using different certificates, -particularly if you are using a reverse proxy. However, Synapse will use the -same certificate on any ports where TLS is configured.</p> -<h3 id="how-do-i-tell-synapse-to-reload-my-keyscertificates-after-i-replace-them"><a class="header" href="#how-do-i-tell-synapse-to-reload-my-keyscertificates-after-i-replace-them">How do I tell Synapse to reload my keys/certificates after I replace them?</a></h3> -<p>Synapse will reload the keys and certificates when it receives a SIGHUP - for -example <code>kill -HUP $(cat homeserver.pid)</code>. Alternatively, simply restart -Synapse, though this will result in downtime while it restarts.</p> <div id="chapter_begin" style="break-before: page; page-break-before: always;"></div><h1 id="setting-up-federation"><a class="header" href="#setting-up-federation">Setting up federation</a></h1> <p>Federation is the process by which users on different servers can participate in the same room. For this to work, those other servers must be able to contact |