9.11 Disabling GNOME Desktop Features
The GNOME Desktop includes features you can use to restrict
access to certain of its functions. These disable (or lockdown)
features let you restrict the actions that users can perform on a
computer. For example, you might want to prevent command line
operations on a computer that is for public use at a trade show.
You disable feature by setting GConf keys (see
Using GConf for Defaults). You can also
use the Configuration Editor application to set GConf keys in a user
configuration source (see
Configuration Editor).
9.11.1 Disabling Lock Screen and Log Out
To disable the lock screen and log out functions, set the
/apps/panel/global/disable_lock_screen
key and the
/apps/panel/global/disable_log_out
key to True.
When you disable the lock screen and log out functions, the
following items are removed from the panels:
-
Lock Screen and Log Out user menu items from the Main Menu
-
Lock and Log Out menu items from the Add to Panel > Actions
menu
To open this menu, right-click a vacant space on a panel and
then click .
-
Lock Screen and Log Out user menu items from the Actions menu
in the Menu Bar applet
Additionally, any Lock Screen buttons and Log Out buttons on
panels are disabled.
9.11.2 Disabling Command Line Operations
To disable operations from a command line, set the
/desktop/gnome/lockdown/disable_command_line
key to True.
When you disable command line operations, the following changes
occur in the user interface:
To disable command line operations, you must also remove menu
items that start terminal applications. For example, you might want
to remove menu items that contain the following commands:
These items are removed from the following menus:
To disable command line operations, you must also disable the
Command Line applet. To disable this applet, add the applet to the
/apps/panel/global/disabled_applets
key. When you disable the Command Line applet, it is removed from
the Main Menu and the Add to Panel > Utility menu.
9.11.3 Disabling Panel Configuration
To disable panel configuration, set the
/apps/panel/global/locked_down
key to True.
When you disable panel configuration, the following changes
occur in the user interface:
-
The following items are removed from the Panel and Drawer
pop-up menus:
-
Add to Panel
-
Delete This Panel
-
Properties
-
New Panel
-
The launcher popup menu is disabled.
-
The following items are removed from the Applet pop-up menu:
-
Remove from Panel
-
Lock
-
Move
-
The Main Menu pop-up menu is disabled.
-
The Launcher drag feature is disabled so that users cannot
drag launchers to or from panels.
-
The Panel drag feature is disabled so that users cannot drag
panels to new locations.
