Ruixiang Du

Disable Guest Account in Ubuntu

Sometimes you may feel annoying to accidentally login to the guest account on you personal computer. But unlike Mac OS, you cannot disable this account directly from “System Settings”.

You can get it by following these steps:

  1. Open a terminal and enter command:
    $ gksudo gedit /etc/lightdm/lightdm.conf
    
  2. Add one line at the end of the file:
    $ allow-guest=false
    
  3. Now you should see something like this in the file:
    [SeatDefaults]
    greeter-session=unity-greeter
    user-session=ubuntu
    allow-guest=false
    
  4. Save and exit the file. Restart lightdm:
    $ sudo restart lightdm
    

Reference: http://www.ubuntugeek.com/ubuntu-tiphow-to-disable-guest-account-in-ubuntu-12-04precise.html