After some more experiments I got streaming running for RDP and SSTP, I could even publish both services when they run on the same backend. But no other https publishing e.g. for Exchange OWA / EWS is possible as listener for port 443 is already in use.
So I have to answer my own question with NO, it is not possible to implement my target scenario using nginx. How sad.
Anyway thanks for all your support.
So I have to answer my own question with NO, it is not possible to implement my target scenario using nginx. How sad.
Anyway thanks for all your support.