|Red Hat Desktop: Deployment Guide|
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To completely disable command line access, you will need to make configuration changes in a number of different contexts:
Set the disable_command_line gconf key, which prevents the user from accessing the terminal or specifying a command line to be executed
Disable the Command Line (Mini-Commander) applet
Disable console switching by editing /etc/X11/xorg.conf
Remove the Open Terminal menu item from the desktop background menu
These steps are described below.
Set the /desktop/gnome/lockdown/disable_command_line key by using GConf editor as shown in Figure 4-6. Setting this key also disables access to the Run Application panel dialog.
To disable this applet, you will need to add the applet IID OAFIID:GNOME_MiniCommanderApplet to the list of disabled applets. Refer to Section 4.3.1 Disabling Applets for information on disabling applets.
Access to all virtual consoles can be disabled by adding a DontVTSwitch option to the Serverflags section in the X configuration file /etc/X11/xorg.conf.
Section "Serverflags" Option "DontVTSwitch" "yes" EndSection
The menu containing the Open Terminal menu item will automatically be removed when all desktop icons are removed by unsetting the /apps/nautilus/preferences/show_desktop key. When this key is unset, Nautilus no longer controls the desktop. Refer to Section 4.6 Removing Desktop Icons for instructions for unsetting this key.