We are looking for a way to remove the list of previously logged on users from the shutdown menu in Ubuntu 14.04 LTS running Gnome Classic Desktop. We have lots of computers in a lab environment where we do not want other users to know login names of previous users that have used that particular machine.
Any help on removing this list would be appreciated.
Note, this is after a user logs into Ubuntu 14.04 LTS and when you click on the little gear icon in the upper right-hand corner to shutdown|Logout|Suspend|Restart it also displays Lock/Switch Account along with a list of user names.
Thank you!
ls /home
tocat /etc/passwd
to commands such as who and last to looking at the logs . – Panther Jul 09 '14 at 21:37