systemd-logind.service

systemd-logind.service

/usr/lib/systemd/systemd-logind

systemd-logind is a system service that manages user logins. It is responsible for:

• Keeping track of users and sessions, their processes and their idle state

• Creating control groups for user processes

• Providing PolicyKit-based access for users to operations such as system shutdown or sleep

• Implementing a shutdown/sleep inhibition logic for applications

• Handling of power/sleep hardware keys

• Multi-seat management

• Session switch management

• Device access management for users

• Automatic spawning of text logins (gettys) on virtual console activation and user runtime directory management

User sessions are registered in logind via the pam_systemd(8) PAM module.

See logind.conf(5) for information about the configuration of this service.

See Multi-Seat on Linux [1] for an introduction into basic concepts of logind such as users, sessions and seats.

See the logind D-Bus API Documentation [2] for information about the APIs systemd-logind provides.

For more information on the inhibition logic see the Inhibitor Lock Developer Documentation [3] .

1.

Multi-Seat on Linux

http://www.freedesktop.org/wiki/Software/systemd/multiseat

2.

logind D-Bus API Documentation

http://www.freedesktop.org/wiki/Software/systemd/logind

3.

Inhibitor Lock Developer Documentation

http://www.freedesktop.org/wiki/Software/systemd/inhibit

systemd(1), systemd-user-sessions.service(8), loginctl(1), logind.conf(5), pam_systemd(8)