channel_setup_fwd_listener: cannot listen to port
I was attempting to use SSH to set up a tunnel (to our build server) this morning, so I typed the following:
ssh -L8080:localhost:8080 jenkins
…only to be greeted with the error:
bind: Address already in use channel_setup_fwd_listener: cannot listen to port: 8080
Most odd. I’m pretty sure I don’t have anything else listening on that port, but
I confirmed it with a quick
netstat -anpt. Nope. Nothing listening on the port.
More strangely, with the SSH session open, I can go to http://localhost:8080 and see Jenkins. When I close the SSH session, I can no longer get to the page.
Lightbuild goes on
I’ve got the following in my
Host jenkins LocalForward 8080 127.0.0.1:8080
Doh! SSH itself had already opened the port, and was complaining that it couldn’t do it a second time.
ssh jenkins was enough.