Port forward to different IP based on destination address
Hello all you lovely people!
I'm trying to figure out if I can port forward to different servers based on the destination domain.
I have a domain with a wildcard cert and I'd like to be able to route all traffic headed towards "1.domain.com" to a server I'm calling "1". I'd still like traffic headed to domain.com to go to where it's currently going, we can call this server "0", and to be able to have a 2.domain.com or 3 or 4 in the future.
I thought that having a port forward rule with:
interface: WAN
Protocol: any
source: any destination: a url alias including 1.domain.com
redirect target ip: local ip
You can do this with HAProxy already in opnsense. And yes you can route more than just HTTP. (when you are making the Backend rules, switch from Layer 7, to Layer 4. Only thing is that it will do TCP, but not UDP.
As you have posted, port forward cannot tell what the domain even is. (and the url alias is not used the way you are thinking).