How can I limit usernames on gdm greeter
Running Natty, mostly up-to-date but holding off on full-upgrade.
Until the most-recent batch of upgrades, 2012-01-03, I have always listed only those usernames on the greeter that represent real humans. Since the upgrades, every username with a UID greater than 1000 is listed -- and many are "users" that no-one but the administrator (me) needs to see.
Obviously, at one time I knew where to find the configuration for this; now I cannot locate anything (in /etc/...) that even looks plausible. I know I'm losing it, but I didn't realize it had gotten this bad!
Someone, please point me at the gdm-greeter configuration file where specific UID's can be either included or excluded.