First, let's setup some process that binds to port that we intend to use: python -m SimpleHTTPServer 8000 Then try few commands: ssh -N -L 5000:localhost:5432 foobar # Fails and hangs ssh -o ExitOnForwardFailure=yes -N -L 5000:localhost:5432 foobar # Fails and hangs ssh -N -L 127.0.0.1:5000:localhost:5432 foobar # Fails and hangs ssh -o ExitOnForwardFailure=yes -N -L 127.0.0.1:5000:localhost:5432 foobar # Fails and exits I'm running OpenSSH_7.9p1, OpenSSL 1.0.2n on Ubuntu 18.04 (16.04 + 7.9 fails too). _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev