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6 changes: 3 additions & 3 deletions docs/root/faq/configuration/sni.rst
Original file line number Diff line number Diff line change
Expand Up @@ -70,9 +70,9 @@ The following is a YAML example of the above requirement.
How do I configure SNI for clusters?
====================================

For clusters, a fixed SNI can be set in `UpstreamTlsContext <envoy_api_field_auth.UpstreamTlsContext.sni>`_.
For clusters, a fixed SNI can be set in :ref:`UpstreamTlsContext <envoy_api_field_auth.UpstreamTlsContext.sni>`.
To derive SNI from HTTP `host` or `:authority` header, turn on
`auto_sni <envoy_api_field_core.UpstreamHttpProtocolOptions.auto_sni>`_ to override the fixed SNI in
:ref:`auto_sni <envoy_api_field_core.UpstreamHttpProtocolOptions.auto_sni>` to override the fixed SNI in
`UpstreamTlsContext`. If upstream will present certificates with the hostname in SAN, turn on
`auto_san_validation <envoy_api_field_core.UpstreamHttpProtocolOptions.auto_san_validation>`_ too.
:ref:`auto_san_validation <envoy_api_field_core.UpstreamHttpProtocolOptions.auto_san_validation>` too.
It still needs a trust CA in validation context in `UpstreamTlsContext` for trust anchor.