Tip: you can group the flags together like so: ssh -fND 12345 foo@bar.example.com Also, the -f flag will cause it to fail if you don't have passwordless a

Tip: you can group the flags together like so: ssh -fND 12345 foo@bar.example.com Also, the -f flag will cause it to fail if you don't have passwordless auth set up. If you don't have it set to use private/public key pairs, just tunnel like so: ssh -ND 12345 foo@bar.example.com