Preventing CTL-ALT-Fn Terminal switching

Stuart blogged about secure GUI monitoring. I wanted add that ever since XFree86 v4.3 (circa RHL9 timeframe) that you can secure against switching out of X to a text terminal via CTL-ALT-Fn.

Edit your /etc/X11/xorg.conf and add a ServerFlags section with the contents:

Section ServerFlags
    # prevent the use of CTL-ALT-F1, etc
    Option DontVTSwitch On
    # prevent the use of CTL-ALT-BKSP
    Option DontZap On
EndSection

The GL250 course has coverage of this.