Port forward to different IP based on destination address in opnsense

https://lemmy.world/post/14180978

Port forward to different IP based on destination address in opnsense - Lemmy.World

cross-posted from: https://lemmy.world/post/14180956 [https://lemmy.world/post/14180956] > 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 [http://1.domain.com]” to a server I’m calling “1”. I’d still like traffic headed to domain.com [http://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 [http://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 [http://1.domain.com] > redirect target ip: local ip > > Would work, but it doesn’t seem to. Any tips?

you need a reverse proxy.
I have a reverse proxy, but that won’t do ALL traffic, right? Just http or https?

you only have one IP. As you rightfully said, reverse proxy does only http(s), port 80/443. this works because of the nature how http requests work. They carry the hostname as part of the protocol (request headers). SSH is a whole other story, since the client does not send the hostname as part of the protocol, only the IP and the port.

What you can do is forward different ports to different machines… 2021 -> server1, 2022 -> server2, etc.

For SSH the ’ProxyJump’ directive is awesome. Have one server reachable from outside and then use it to jump to all the others.