Accessing two HA Pi 4s with two https links via duckdns

I have 2 Pis each running HA. Currently they’re both at home but in a few weeks I will be moving one to another house. I use duckdns to give me external access through https using a url of the form For this I have port forwarding in my router for port 443 to the first Pi I set up.

I want to be able to access the second pi in the same way using a url of the form However, using this url means my port forwarding rules won’t route that traffic to the right pi.

I’ve read that port 8443 is another port for https but when I try a url of the form and route port 8443, it doesn’t work and I get an error ERR_SSL_PROTOCOL_ERROR.

Is what I’m trying to do possible? If so, what am I doing wrong?

It’s definitely possible, but not with plain port forwarding.

You’d have to add reverse-proxy like nginx to the equation, which will do the proper forwarding based upon the hostname.