Proxy to upstream HTTPS server *with different* keys/certs in nginx

[Maxim Dounin]

Hello!

On Sun, Feb 09, 2014 at 07:13:55PM -0500, tbamise wrote:

> > 
> > Connections to upstream servers don't use any client certificates.
> > 
> 
> Yes I agree. The connection to the upstream server uses the nginx server
> certificates specified by $ssl_certificate(_key).

It looks like you didn't understand my answer.  Again: connections 
to upstream servers don't use any client certificates.  That is, 
no certificates are used by nginx when connecting to upstream 
servers.

> Basically I want to use:
> for downstream to client - a.cert & a.cert.key for connection to clients
> for upstream to upstream servers - b.cert & b.cert.key for connection to
> upstream servers.
> 
> The https & server modules of Nginx only allow you to specify a single cert
> pair via $ssl_certificate(_key)

The only thing you can specify is ssl_client_certificate (and 
ssl_client_certificate_key), and it is used only in connections 
with clients.

SSL support in proxy module is rather rudientary and it doesn't 
support using client certificates.

-- 
Maxim Dounin
http://nginx.org/