Login Manager

A login manager is a login system for Unix and Unix- like operating systems. It includes a daemon to log ( Log ), a user interface for logging, and a system for tracking the login- sessions. When a user tries to log on it checks the login manager the user's permissions to a system for authentication.

Since the X display manager is a graphical user interface for logging in, some people use the phrase Display Manager ( management of the working environment ) and login manager ( management of logging ) synonymous way.

systemd, a init daemon for Linux, has an integrated login manager - it's a sign of the daemon is called logind. The Login Manager systemd is an alternative to ConsoleKit, which is not maintained anymore.