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Using a SSH tunnel/ port forward to connect a TV? (lemmy.zip)
submitted 3 months ago by to c/selfhosted@lemmy.world
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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?

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[–] 6 points 3 months ago (1 child)

ssh -L 1234:localhost:1234 remote_server binds the RPi's localhost:1234 to remote_server's localhost:1234. You want to bind the port to something on the RPi that the TV can hit, so something like ssh -L 192.168.1.5:1234:localhost:1234 remote_server, where 192.168.1.5 is the RPi's address.

I think you also want -N on the ssh command.

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