ssh tunnel cheatsheet

ssh_tunnel_cheatsheet.txt

#
# ssh using the -N falg for establishing a tunnel is great.... but somtimes it is difficult to know if authentication has 
# been successful (especially if you have any kind of extended login delays setup on a remote system) and you are
# authenticating with a password (did I type that correctly).
#
# this approach requires little additional setup and prevents lots of verbosity regarding the login.
#

# recive notification that authentication succeeded - bash
ssh -v <user>@<remote-host> -p <port> -L <localport>:<tunnel-host>:<remoteport> -N 2> >(grep Authenticated >&2)

# recive notification that authentication succeeded - fish
ssh -v <user>@<remote-host> -p <port> -L <localport>:<tunnel-host>:<remoteport> -N 2>| grep Authenticated