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

[tbamise]

Hello!

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

Following Nginx docs
(http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_certificate) you
can specify ssl_certificate_key and ssl_certificate files in an nginx conf
file which specifies the files with the certificate in PEM format for the
given virtual server. The ssl_client_certificate configuration refers to CA
cert used to verify clients.

I'll rephrase the question. I'm interested in server certificates (not
client). The ssl_certificate_key file is used as a private key for the
server to decrypt ssl connections for clients. I'm looking to configure
another key for encrypting ssl connections from niginx server to upstream
server.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,247305,247332#msg-247332