Here's how you can disable the guest account in Ubuntu 13.04.
1. Open a terminal window.
2. Type in the following command then hit Enter.
sudo gedit /etc/lightdm/lightdm.conf
3. Add this line to the end of the file: allow-guest=false
4. Save the file.
5. Restart your computer.
For more, see the original article at the link below.
This article is published as part of the IDG Contributor Network. Want to Join?