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I have enabled root to login from screen. I want disable it keep normal and guest user on login screen only because even if I login with normal user for shutting down my machine I have to login with root which was not a problem before enabling root login from screen

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1 Answer 1

In GDM

Edit /etc/gdm/custom.conf file and remove/comment out AllowRoot=true.

In KDM

Edit /etc/kde4/kdm/kdmrc file and change AllowRootLogin=true for AllowRootLogin=false.

In LightDM

This procedure disables the "Other" menu, so you can type the username root and login. You must edit /etc/lightdm/lightdm.conf and add greeter-show-manual-login=false. Then reboot.

To disable root login just type:

sudo passwd -dl root
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