As Xubuntu can be used in a network (as jericho said in a previous comment), it would be nice to control the access and permissions of non-admin users on some elements like the xfce-panel.
Well, good news, the xfce team thought about it and they created a ‘kiosk mode’ wich enables the administrator to define some restrictions on specific xfce elements. Second good news, the xfce-panel has now support for Kiosk Mode to prevent users from making changes to their panel configuration.
Here is how to do it :
You have to edit or create the file ${sysconfdir}/xdg/xfce4/kiosk/kioskrc.
You can modify the xfce4-panel section of your kioskrc to look like this:
[xfce4-panel]
CustomizePanel=%powerusers,foo
This allows only users in the group powerusers and the user foo to customize their panels.
If you want to allow no one to customize his panel, just type :
[xfce4-panel]
CustomizePanel=NONE
Notice that you can control permissions also for other parameters as the following example shows
[xfce4-session]
CustomizeSplash=ALL
CustomizeChooser=ALL
CustomizeLogout=ALL
CustomizeCompatibility=%wheel
Shutdown=%wheel
CustomizeSecurity=NONE
Hope this new tip will help in adopting Xubuntu for network, multi-user solutions