Cheers, On Thu, 2022-09-15 at 07:18 +0300, Aki Tuomi wrote: > On September 14, 2022 5:29:46 PM GMT+03:00, Tobias Wolter > <t...@b1-systems.de> wrote: > > Cheers, > > > > Dovecot 2.3.4.1 (Debian stable) here, and the changelog does not > > offer > > any hope of salvation, so a bug report it is. > > > > The LDAP connections for userdb/passdb do not support SNI via TLS. > > > > Simple construct to reproduce this: > > > > 0.) Have a.pem with SAN `foo.example.com`, b.pem with > > `bar.example.com` > > 1.) Configure haproxy frontend with `bind *:636 ssl crt /foo/a.pem > > ssl > > crt /foo/b.pem` > > 2.) Try to use ldaps://bar.example.com/ in passdb, receive > > "auth: Error: LDAP: Can't connect to server: > > ldaps://bar.example.com" > > > > Expectation, of course, would be for this to work; most libraries > > should support it, it's probably just a matter of convincing the > > appropriate binding. > > Can you verify with > > openssl s_client -connect bar.example.com:ldaps -servername > bar.example.com > > that correct cert is served?
Forgot to mention that I of course tested with `s_client` and `ldapsearch`/`ldapwhoami`; HAProxy correctly serves the right certificate as per the SNI indication. Regards, -towo
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