Hide user list from logon page in Ubuntu/Xubuntu 11.10

Question

I'd like to add a little bit more security on my laptop that is running Ubuntu 11.10 with xfce environment. The problem is that once the computer is turned on a list of users is displayed for me to click on and enter the password; I would like to disable this and have it ask for the username and password instead.

Thank you.

Answer 1

Edit the LightDM configuration file:

gksudo leafpad /etc/lightdm/lightdm.conf

You may have to substitute mousepad for leafpad if you're on a newer release. Add the following two lines to the [SeatDefaults] section:

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

You can then restart your system, or just restart lightdm:

 sudo restart lightdm