When you start up the Ubuntu desktop, you notice that it shows the Guest login. To prevent this from appearing on the login screen, do the following:
- Start up the terminal on your system
- Backup the /etc/lightdm/lightdm.conf file for Ubuntu versions 13.10 and below:
$ sudo cp /etc/lightdm/lightdm.conf /etc/lightdm/lightdm.conf.org <enter> - Backup the /etc/lightdm/lightdm.conf.d/10-xubuntu.conf file.
- Modify the file to add a line “allow-guest=false” as below for Ubuntu versions 13.10 and below
$ sudo gedit /etc/lightdm/lightdm.conf <enter>
Add a line to the end of the file:
allow-guest=false - Backup the /etc/lightdm/lightdm.conf.d/10-xubuntu.conf file for Ubuntu versions 14.04 onwards:
$ sudo cp /etc/lightdm/lightdm.conf.d/10-xubuntu.conf /etc/lightdm/lightdm.conf.d/10-xubuntu.conf.org <enter> - Modify the above file and add the line shown in green text as in 4 above to this file.
- Save the file.
The next time you start your computer, you will not find the Guest login on the login screen.
