Using lightdm + slick greeter

Linux default greeters list user names on log in screen. This is sort of a security risk. Using lightdm + slick greeter can avoid this, rendering it back to the key-in username type.

To do so,

dnf install lightdm slick-greeter

systemctl stop gdm (or whatever dm you are using)

systemctl disable gdm

edit /etc/lightdm/lightdm,conf, change greeter-session to

greeter-session=slick-greeter

systemctl enable lighdm

if masked, systemctl unmask lightdm first

then reboot.