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authorDirk Klimpel <5740567+dklimpel@users.noreply.github.com>2022-10-28 14:55:03 +0200
committerGitHub <noreply@github.com>2022-10-28 13:55:03 +0100
commit44f0d573cf57772b7f53e918d0c3580cba4fde32 (patch)
tree1e8ca1d904a40cd4a59e032d890bea41dba4c5d0 /docs/usage/configuration/config_documentation.md
parentCheck appservice user interest against the local users instead of all users (... (diff)
downloadsynapse-44f0d573cf57772b7f53e918d0c3580cba4fde32.tar.xz
Add docs for an empty `trusted_key_servers` config option (#13999)
* Add docs for an empty `trusted_key_servers` config option

* small rewording

* Tweak changelog
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diff --git a/docs/usage/configuration/config_documentation.md b/docs/usage/configuration/config_documentation.md
index fb5eb42c52..97fb505a5f 100644
--- a/docs/usage/configuration/config_documentation.md
+++ b/docs/usage/configuration/config_documentation.md
@@ -2681,6 +2681,12 @@ is still supported for backwards-compatibility, but it is deprecated.
 warning on start-up. To suppress this warning, set
 `suppress_key_server_warning` to true.
 
+If the use of a trusted key server has to be deactivated, e.g. in a private
+federation or for privacy reasons, this can be realised by setting
+an empty array (`trusted_key_servers: []`). Then Synapse will request the keys
+directly from the server that owns the keys. If Synapse does not get keys directly
+from the server, the events of this server will be rejected.
+
 Options for each entry in the list include:
 * `server_name`: the name of the server. Required.
 * `verify_keys`: an optional map from key id to base64-encoded public key.