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?
Can you provide more detail? What are the networks/routers/vlans? Which network is the RPi on? What is your ssh command? Is that
ufwcommand on the RPi or the router?Ok there is a TV and a pi on network 1 and a server on network 2, the pi can connect to the server through SSH or VPN or whatever is needed. The TV would like to connect to the server, however it can’t run a VPN or anything like that so exposing the server would be a risk.
The SSH command on the pi is SSH -L 1234:localhost1234 remote_server
The ufw command was run on the pi, with the intention to allow the TV to access the forwarded port on the pi
ssh -L 1234:localhost:1234 remote_serverbinds the RPi’slocalhost:1234to remote_server’slocalhost:1234. You want to bind the port to something on the RPi that the TV can hit, so something likessh -L 192.168.1.5:1234:localhost:1234 remote_server, where192.168.1.5is the RPi’s address.I think you also want
-Non thesshcommand.That worked thanks, I didn’t know you could put an address like that in the -L command, and the -N is correct here too