------------ Original Message ------------ > Date: Thursday, April 09, 2015 11:03:04 -0600 > From: Frank Cox <theatre at melvilletheatre.com> > > On Thu, 9 Apr 2015 12:58:18 -0400 > Alfred von Campe wrote: > >> The thread on the CentOS 7.1 user login screen reminded me of a >> small nagging issue I have on CentOS 6. We are using a Windows >> AD backend to authenticate users on our CentOS 6 systems. When a >> system is built, and nobody has yet logged into it, you have to >> enter your username in the login screen to log in. The next time >> you are the the login screen it lists all the users who have >> logged in (via the graphical login screen). This works great if >> this is your own desktop and nobody ever logs into it, but on a >> shared system the list can get very long. Does anyone know where >> this lists is kept? > > I think that you can exclude usernames from the list on Centos 6 > by making their user number less than 500. You can (also) exclude entries by enumerating them on an "Exclude=" line in the greeter section of /etc/gdm/custom.conf . Alternatively, you can suppress the list totally by changing the default of gdm->simple-greeter->disable_user_list with the gconf editor.