systemd-logind.service man page
systemd-logind.service, systemd-logind — Login manager
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 for an introduction into basic concepts of logind such as users, sessions and seats.
See the logind D-Bus API Documentation for information about the APIs systemd-logind provides.
For more information on the inhibition logic see the Inhibitor Lock Developer Documentation.
systemd(1), systemd-user-sessions.service(8), loginctl(1), logind.conf(5), pam_systemd(8)
Multi-Seat on Linux
logind D-Bus API Documentation
Inhibitor Lock Developer Documentation
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).