Ubuntu Delete Guest Account

It was exciting to use Ubuntu at first, but after multiple logons to the system, it found that Ubuntu had its own set of accounts and passwords, as well as a "guest login". The attentive person will find that the guest login is not required account number and password, directly click to be able to log in. Although it is said that after the guest log out will remove all settings and actions, but I still do not rest assured. I found some methods on the Internet, and finally I found a more appropriate.

In terminal or console input:sudo sh-c ' printf ' [seatdefaults]\nallow-guest=false\n ' >/usr/share/lightdm/lightdm.conf.d/50 -no-guest.conf '

Then reboot the system and you will find that the Guest account is not available or is disabled.

Ubuntu Delete Guest Account