Multiple logins on same ID

[Saurabh Jain (सौर भ जैन) <saurabh jain gmail com>]

Hi All

I run a diskless cluster where all clients boot from the same Fedora
installation. Is it safe to let multiple people login with the same
ID, and use Gnome and OO? They will be sharing the same user home
directory.

Also, is there a way to disable users from changing their Gnome and
other preferences? Most of my users are school children, using the
same login on multiple computers. When one kid changes the desktop
background on one terminal, the next time round, everyone's desktop
background changes. I want to prohibit such changes.

Thanks and regards,
Saurabh