SYSTEMD-LOGIND.SERVICE(8) systemd-logind.service SYSTEMD-LOGIND.SERVICE(8) NAME 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: o 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 logged in user. o Generating and managing session IDs. If auditing is available and an audit session ID is already set for a session, then this ID is reused as the session ID. Otherwise, an independent session counter is used. o Providing polkit[1]-based access for users for operations such as system shutdown or sleep o Implementing a shutdown/sleep inhibition logic for applications o Handling of power/sleep hardware keys o Multi-seat management o Session switch management o Device access management for users o Automatic spawning of text logins (gettys) on virtual console activation and user runtime directory management o Scheduled shutdown o Sending "wall" messages 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 sd-login(3) for information about the basic concepts of logind such as users, sessions and seats. See org.freedesktop.login1(5) and org.freedesktop.LogControl1(5) for information about the D-Bus APIs systemd-logind provides. For more information see Inhibitor Locks[2]. If you are interested in writing a display manager that makes use of logind, please have look at Writing Display Managers[3]. If you are interested in writing a desktop environment that makes use of logind, please have look at Writing Desktop Environments[4]. SEE ALSO systemd(1), systemd-user-sessions.service(8), loginctl(1), logind.conf(5), pam_systemd(8), sd-login(3), org.freedesktop.login1(5) NOTES 1. polkit https://www.freedesktop.org/wiki/Software/polkit 2. Inhibitor Locks https://systemd.io/INHIBITOR_LOCKS 3. Writing Display Managers https://systemd.io/WRITING_DISPLAY_MANAGERS 4. Writing Desktop Environments https://systemd.io/WRITING_DESKTOP_ENVIRONMENTS systemd 256.8 SYSTEMD-LOGIND.SERVICE(8)