SYSTEMD−LOGIND.SERVICE - Online Linux Manual Page
Section : 8
Updated :
Source : systemd 253
Note : systemd-logind.service
NAMEsystemd-logind.service, systemd-logind − Login manager
SYNOPSISsystemd−logind.service /usr/lib/systemd/systemd−logind
DESCRIPTIONsystemd−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 logged in user. • 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. • Providing polkit[1]−based access for users for 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 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 on the inhibition logic see the Inhibitor Lock Developer Documentation[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 ALSOsystemd(1), systemd-user-sessions.service(8), loginctl(1), logind.conf(5), pam_systemd(8), sd-login(3)
NOTES 1. polkit https://www.freedesktop.org/wiki/Software/polkit 2. Inhibitor Lock Developer Documentation https://www.freedesktop.org/wiki/Software/systemd/inhibit 3. Writing Display Managers https://www.freedesktop.org/wiki/Software/systemd/writing-display-managers 4. Writing Desktop Environments https://www.freedesktop.org/wiki/Software/systemd/writing-desktop-environments 0
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