How do I kill a backgrounded/detached ssh session?

Question

I am using the program synergy together with an ssh tunnel

It works, i just have to open an console an type these two commands:

ssh -f -N -L localhos         


        

Answer 1

Another option is to use pgrep to find the PID of the newest ssh process

ssh -fNTL 8073:localhost:873 otherUser@OtherHost
tunnelPID=$(pgrep -n -x ssh)
synergyc localhost
kill -HUP $tunnelPID