I was curious as to if there is a way to disable the user list on the login screen on Ubuntu 15.10, thus making it so that any user would have to enter their username as well as their password to log in.
I have already modified /etc/lightdm/users.conf by adding...
greeter-show-manual-login=true greeter-hide-users=true allow-guest=false
... and restarting the computer, but I am only prompted for my password, and my user name is already selected. With that, I also have the ability to use a guest session, even though that shouldn't be allowed with the code above. Any help would be much appreciated.