Appnr

lockdown editor for GNOME

pessulus enables the system administrator to set mandatory settings in
GConf, which apply to all users, restricting what they can do, which may
be of particular usefulness for kiosks (internet cafes, for example).

Examples of what can be locked down are the panels (no changes in the panel
configuration are allowed, locking their position and their contents), some
of their functions individually (disabling screen locking and log out), the
web browser (disabling specific protocols, arbitrary URLs, forcing the user
to be in fullscreen mode), among many others.