Supress user list on 11.10 login screen

[Charlotte18]

Does anyone know how to make the login screen in 11.10 require users to type their usernames, whilst getting rid of the clickable list of users?

[HowardChau]

Here's what I've done to hide the user list and also disable guest login.

http://www.puppychau.com/archives/130

I just
sudo nano /etc/lightdm/lightdm.confand added the two lines. in the
[SeatDefaults] section


greeter-hide-users=true
allow-guest=false