I wanted to improve the security of a TV connecting to a server on a different LAN, and one approach I thought of is to use a RPi on the network to look after the secure connection.

So the pi could connect to the remove server through SSH, and forward the port locally. I thought this port could then be opened, and the TV can then be pointed at the pi on the local network.

Port forwarding to the pi works but I can't connect to it from another device, even after setting firewall settings.

Basically the firewall rule is ufw allow from 192.168.1.0/24 port 1234

Does this idea work, or is there a better approach? Am I missing something in the setup?