>> Patrick Lists wrote in post #1132735:
>>> On 09-01-14 22:48, Styopa Semenukha wrote:
>>>> Patrick,
>>>>
>>>> It's not possible, because SSL works on lower level (session layer) than HTTP
>>> (application layer).
>>>
>>> Thank you for your feedback. That's unfortunate. I hope to see flexible
>>> SSL config one day as an enhancement (if possible).
>>
>> It is not possible, not with nginx nor any other web server. Read up on
>> how the SSL handshake and HTTP over SSL works, and it should become
>> clear.

>It is actually possible, at least Apache can do this with SSL renegotiation.
>But nginx currently does not support this.

Expanding on this question, is it possible to use a different set of certs for the client side and another set for the upstream server side?
Right now I can defined a server module with ssl and specify the ssl certificates and specify a https protocol for proxy_pass for a location. But both connections end up using the same certificates specified with $ssl_certificate. How can I specify different certificates for the client side connection and upstream side connection?

Thanks in advance.