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Converting some of the rst documentation to markdown. Attempted to preserve whitespace and line breaks to minimize cosmetic change.
124 lines
3.9 KiB
Markdown
124 lines
3.9 KiB
Markdown
# Using a reverse proxy with Synapse
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It is recommended to put a reverse proxy such as
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[nginx](https://nginx.org/en/docs/http/ngx_http_proxy_module.html),
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[Apache](https://httpd.apache.org/docs/current/mod/mod_proxy_http.html),
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[Caddy](https://caddyserver.com/docs/proxy) or
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[HAProxy](https://www.haproxy.org/) in front of Synapse. One advantage
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of doing so is that it means that you can expose the default https port
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(443) to Matrix clients without needing to run Synapse with root
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privileges.
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> **NOTE**: Your reverse proxy must not `canonicalise` or `normalise`
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the requested URI in any way (for example, by decoding `%xx` escapes).
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Beware that Apache *will* canonicalise URIs unless you specifify
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`nocanon`.
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When setting up a reverse proxy, remember that Matrix clients and other
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Matrix servers do not necessarily need to connect to your server via the
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same server name or port. Indeed, clients will use port 443 by default,
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whereas servers default to port 8448. Where these are different, we
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refer to the 'client port' and the \'federation port\'. See [Setting
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up federation](federate.md) for more details of the algorithm used for
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federation connections.
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Let's assume that we expect clients to connect to our server at
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`https://matrix.example.com`, and other servers to connect at
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`https://example.com:8448`. The following sections detail the configuration of
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the reverse proxy and the homeserver.
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## Webserver configuration examples
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> **NOTE**: You only need one of these.
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### nginx
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server {
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listen 443 ssl;
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listen [::]:443 ssl;
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server_name matrix.example.com;
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location /_matrix {
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proxy_pass http://localhost:8008;
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proxy_set_header X-Forwarded-For $remote_addr;
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}
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}
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server {
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listen 8448 ssl default_server;
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listen [::]:8448 ssl default_server;
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server_name example.com;
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location / {
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proxy_pass http://localhost:8008;
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proxy_set_header X-Forwarded-For $remote_addr;
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}
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}
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> **NOTE**: Do not add a `/` after the port in `proxy_pass`, otherwise nginx will
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canonicalise/normalise the URI.
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### Caddy
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matrix.example.com {
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proxy /_matrix http://localhost:8008 {
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transparent
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}
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}
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example.com:8448 {
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proxy / http://localhost:8008 {
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transparent
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}
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}
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### Apache
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<VirtualHost *:443>
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SSLEngine on
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ServerName matrix.example.com;
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AllowEncodedSlashes NoDecode
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ProxyPass /_matrix http://127.0.0.1:8008/_matrix nocanon
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ProxyPassReverse /_matrix http://127.0.0.1:8008/_matrix
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</VirtualHost>
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<VirtualHost *:8448>
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SSLEngine on
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ServerName example.com;
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AllowEncodedSlashes NoDecode
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ProxyPass /_matrix http://127.0.0.1:8008/_matrix nocanon
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ProxyPassReverse /_matrix http://127.0.0.1:8008/_matrix
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</VirtualHost>
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> **NOTE**: ensure the `nocanon` options are included.
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### HAProxy
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frontend https
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bind :::443 v4v6 ssl crt /etc/ssl/haproxy/ strict-sni alpn h2,http/1.1
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# Matrix client traffic
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acl matrix-host hdr(host) -i matrix.example.com
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acl matrix-path path_beg /_matrix
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use_backend matrix if matrix-host matrix-path
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frontend matrix-federation
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bind :::8448 v4v6 ssl crt /etc/ssl/haproxy/synapse.pem alpn h2,http/1.1
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default_backend matrix
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backend matrix
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server matrix 127.0.0.1:8008
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## Homeserver Configuration
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You will also want to set `bind_addresses: ['127.0.0.1']` and
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`x_forwarded: true` for port 8008 in `homeserver.yaml` to ensure that
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client IP addresses are recorded correctly.
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Having done so, you can then use `https://matrix.example.com` (instead
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of `https://matrix.example.com:8448`) as the "Custom server" when
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connecting to Synapse from a client.
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