The easiest solution is xmodmap -e "keycode 22 = BackSpace BackSpace Terminate_Server" as explained here: http://ubuntuforums.org/showthread.php?t=202654&page=2
The easiest solution is xmodmap -e "keycode 22 = BackSpace BackSpace Terminate_Server" as explained here: http:// ubuntuforums. org/showthread. php?t=202654& page=2