Hello Eugene,

On Fri, Oct 10, 2014 at 08:13:43AM +0300, Eugene Istomin wrote:
> Hello,
> 
> yesterday we are looking for the client-side SNI custom string for one of 
> our clients and choose stunnel (as outbound TLS termination) for two 
> reasons:
> 1) ability to send client certificate (client mode)
> 2) ability to send custom SNI header in client mode
> 
> We use haproxy as main L7 routers for years with a little bit of stunnel for 
> client cert auth.
> Do you have any plans to add this features in 1.6?

It is already possible to send the client certificate, you just have
to specify "crt <cert>" on the server line. There are some ongoing
discussions about SNI. We all want to have it but want to ensure we're
doing it correctly. Most users want to have a dynamic one, at least being
able to retrieve the one from the other side, and possibly extract it
from a Host header. And of course also from a static string. We're just
trying to find the best way to configure this so that it's easy for all
users.

I personally think that a sample expression would be appropriate, just
as for the "usesrc" keyword (which is currently limited). I'd rather
avoid the ugly logformat string at this point since I don't think we
need this complexity.

If you have any opinion on the subject, please voice in!

Best regards,
Willy


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