Fluxbox

Disable CTRL+ALT+DEL To Quit / Kill Fluxbox X Server
Add the following lines to your /etc/X11/xorg.conf file...

Section "ServerFlags" Option "DontZap" "true" EndSection

Comment out the following lines in your ~/.fluxbox/keys file...


 * 1) exit fluxbox
 * 2) Control Mod1 Delete :Exit