systemd-logind.service man page

systemd-logind.service, systemd-logind — Login manager

Synopsis

systemd-logind.service

/usr/lib/systemd/systemd-logind

Description

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. This is implemented by allocating a systemd slice unit for each user below user.slice, and a scope unit below it for each concurrent session of a user. Also, a per-user service manager is started as system service instance of user@.service for each user logged in.
· Generating and managing session IDs. If auditing is available and an audit session ID is set for a session already, the session ID is initialized from it. Otherwise, an independent session counter is used.
· 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 with 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].

See Also

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

Notes

1.

Multi-Seat on Linux

2.

logind D-Bus API Documentation

3.

Inhibitor Lock Developer Documentation

Referenced By

loginctl(1), logind.conf(5), pam_systemd(8), sd_bus_creds_get_pid(3), systemd.directives(7), systemd.index(7), systemd-user-sessions.service(8), xss-lock(1).

systemd-logind(8) is an alias of systemd-logind.service(8).

systemd 233 systemd-logind.service