如何正确使用 ssh 端口转发

Question

On my Pc i got a service which runs on port 51069. I want that this service is reachable with port 80. I tried this comand

ssh -L 51069:localhost:80 localhost

But it not works, when i ask with my browser for localhost i get not the web service behind 51069.

Answer 1

You have the ports the wrong way round. You want to forward traffic on port 80 to 51069 so it should be

ssh -L 80:localhost:51069 localhost

HOWEVER, you need root to be able to forward privileged ports (<= 1024) so you would have to ssh locally as root which might not be a great idea.

I'd personally use iptables for this: How to do local port forwarding with iptables