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Re: certificate warnings



On 17/03/2010, at 6:53 AM, Dieter Kluenter <dieter@dkluenter.de> wrote:

Am Tue, 16 Mar 2010 19:45:25 +1000
schrieb "Brett @Google" <brett.maxfield@gmail.com>:

Hello,

Is there any way of supressing the SSL warning/error "TLS: hostname
(XXXXX) does not match common name in certificate" for a syncrepl
client ?

This error is being returned by a syncrepl client which is
negotiating SSL talking to a syncrepl server by using it's (actual /
real) server name, but as the server name returns a certificate based
on its (external / content switch) server name, the ssl library on
the client waits for a randomly long time, and then returns the error
above as the cert returned does not exactly match the hostname
configured in the provider="" line, in the syncrepl client
configuration.

If it's indeed a warning, then the sycrepl client should ignore it,
but it does not, so effectively it is an error as it causes the
syncrepl client to abort it's connection.

A hack might be to add the "external" name to /etc/hosts on each
syncrepl client with the correct ip for each syncrepl server, but was
hoping for something better.

You may either configure syncrepl with 'tls_reqcert=never, which would
not be a wise decission, or add a subjectAltName value to the host
certificate.

I tried tls_reqcert=never but i stll got the warning. It's the syncrepl client's ssl library which has an issue with the syncrepl client's server certificate.

I'm thinking maybe having either a subjectAltName or havimg a non-ssl listener just for syncrepl (with fw rules) might be the trick.

Cheers
Brett