4.2. Disabling [Ctrl]-[Alt]-[Delete]

4.2.1. Window Manager Configuration

Setting the following gconf keys will prevent [Ctrl]-[Alt]-[Delete] from displaying the Log Out dialog.

1. Note in Figure 4-2 that the default global keybinding for [Ctrl]-[Alt]-[Delete] is attached to the gconf key run_command_1.

   

   Figure 4-2. Default Metacity Action for [Ctrl]-[Alt]-[Delete]

2. To change the window manager's interpretation of [Ctrl]-[Alt]-[Delete], change the run_command_1 key value from gnome-session-save --kill to something benign as shown in Figure 4-3. (Note that the appropriate key to change is /apps/metacity/keybinding_commands/command_1.)

   

   Figure 4-3. Resetting the run_command_1 Key

4.2.2. System-Level Configuration

To disable [Ctrl]-[Alt]-[Delete] at the system level, comment out the relevant section in /etc/inittab as shown below:

# Trap CTRL-ALT-DELETE
#ca::ctrlaltdel:/sbin/shutdown -t3 -r now

4.2.3. Disabling [Ctrl]-[Alt]-[Backspace]

To disable the [Ctrl]-[Alt]-[Backspace] key combo from terminating the X session, add a Serverflags section to the X configuration file /etc/X11/xorg.conf and add a DontZap option to the section.

Section "Serverflags"

Option "DontZap"      "yes"

EndSection