doc: add SSL configuration section reference

Reported-by: Steve Atkins
Discussion: https://postgr.es/m/B82E80DD-1452-4175-B19C-564FE46705BA@blighty.com

Backpatch-through: 11

diff --git a/doc/src/sgml/client-auth.sgml b/doc/src/sgml/client-auth.sgml
index 72480a3bb6d58b795cd34bc25ee2cc4e93177a31..fc26e834237f0f75b6ebb352c6b9d6c320ce5c2f 100644 (file)
--- a/doc/src/sgml/client-auth.sgml
+++ b/doc/src/sgml/client-auth.sgml
@@ -1944,7 +1944,8 @@ host ... radius radiusservers="server1,server2" radiussecrets="""secret one"",""
 
    <para>
     This authentication method uses SSL client certificates to perform
-    authentication. It is therefore only available for SSL connections.
+    authentication. It is therefore only available for SSL connections;
+    see <xref linkend="ssl-openssl-config"/> for SSL configuration instructions.
     When using this authentication method, the server will require that
     the client provide a valid, trusted certificate.  No password prompt
     will be sent to the client.  The <literal>cn</literal> (Common Name)