Can the new GDM be configured to not show a list of users?

Asked by Alvin Thompson

For security reasons, the U.S. government and many large companies require that computers not show the list of user names on the login screen. Is there a way to configure this? There's a 'custom.conf' file in /usr/share/doc/gdm/examples/ but it has no entries and doesn't even say where this file should be created.

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Ubuntu gdm Edit question
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Alvin Thompson
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Larry Jordan (larryjor) said :

     Sounds like you are on the default login, called "Human List". Go to System Administration->Login Window and choose something different (look under "Local" tab). Also, check out the Security tab while you are there. I'd suggest the "Only allow login if user owns their own home directory" be checked, then up to (you?) on how to set up the Permissions radio button set. You might also check for security packages like SELinux for something like government use.

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Alvin Thompson (alvint-deactivatedaccount) said :

I think you're thinking about the old GDM. The new rewritten GDM (version 2.28, used in Karmic) doesn't have a graphical config tool, yet.

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Alvin Thompson (alvint-deactivatedaccount) said :

I figured it out. Run this:

$ sudo -u gdm gconftool-2 --set --type boolean /apps/gdm/simple-greeter/disable_user_list true

and reboot.