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Merge pull request #1479 from turt2live/travis/s2s/server-discovery

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Federation: Document the Host header; Clarify how literal IP addresses are handled
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Travis Ralston 2018-08-07 08:30:47 -06:00 • committed by GitHub
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specification/server_server_api.rst
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@ -97,6 +97,15 @@ default fallback port number of 8448.
Homeservers may use SRV records to load balance requests between multiple TLS
endpoints or to failover to another endpoint if an endpoint fails.
If the DNS name is a literal IP address, the port specified or the fallback
port should be used.
When making requests to servers, use the DNS name of the target server in the
``Host`` header, regardless of the host given in the SRV record. For example,
if making a request to ``example.org``, and the SRV record resolves to ``matrix.
example.org``, the ``Host`` header in the request should be ``example.org``. The
port number for target server should not appear in the ``Host`` header.
Server implementation
~~~~~~~~~~~~~~~~~~~~~~