Disable Ctrl+Alt+Backspace from Restarting X Windows on Linux

If you've used Linux for any amount of time, you're already familiar with the Ctrl+Alt+Backspace shortcut key combination that restarts X Windows immediately… but have you ever wondered if there is a way to disable that behavior?

Turns out it's extremely simple to do, although I'm not necessarily recommending that you do this… it's more for informational purposes. (while Linux might be rock-solid, I've had more than my share of crashing in Gnome, so the shortcut key is useful)

Disable Ctrl+Alt+Backspace

The first thing you'd probably want to do is make a backup of the xorg.conf file, which you can do with this command: