1SYSTEMD-LOGIND.SERVICE(8)   systemd-logind.service   SYSTEMD-LOGIND.SERVICE(8)
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NAME

6       systemd-logind.service, systemd-logind - Login manager
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SYNOPSIS

9       systemd-logind.service
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11       /usr/lib/systemd/systemd-logind
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DESCRIPTION

14       systemd-logind is a system service that manages user logins. It is
15       responsible for:
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17       •   Keeping track of users and sessions, their processes and their idle
18           state. This is implemented by allocating a systemd slice unit for
19           each user below user.slice, and a scope unit below it for each
20           concurrent session of a user. Also, a per-user service manager is
21           started as system service instance of user@.service for each logged
22           in user.
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24       •   Generating and managing session IDs. If auditing is available and
25           an audit session ID is already set for a session, then this ID is
26           reused as the session ID. Otherwise, an independent session counter
27           is used.
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29       •   Providing polkit[1]-based access for users for operations such as
30           system shutdown or sleep
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32       •   Implementing a shutdown/sleep inhibition logic for applications
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34       •   Handling of power/sleep hardware keys
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36       •   Multi-seat management
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38       •   Session switch management
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40       •   Device access management for users
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42       •   Automatic spawning of text logins (gettys) on virtual console
43           activation and user runtime directory management
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45       •   Scheduled shutdown
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47       •   Sending "wall" messages
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49       User sessions are registered with logind via the pam_systemd(8) PAM
50       module.
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52       See logind.conf(5) for information about the configuration of this
53       service.
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55       See sd-login(3) for information about the basic concepts of logind such
56       as users, sessions and seats.
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58       See org.freedesktop.login1(5) and org.freedesktop.LogControl1(5) for
59       information about the D-Bus APIs systemd-logind provides.
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61       For more information on the inhibition logic see the Inhibitor Lock
62       Developer Documentation[2].
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64       If you are interested in writing a display manager that makes use of
65       logind, please have look at Writing Display Managers[3]. If you are
66       interested in writing a desktop environment that makes use of logind,
67       please have look at Writing Desktop Environments[4].
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SEE ALSO

70       systemd(1), systemd-user-sessions.service(8), loginctl(1),
71       logind.conf(5), pam_systemd(8), sd-login(3)
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NOTES

74        1. polkit
75           https://www.freedesktop.org/wiki/Software/polkit
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77        2. Inhibitor Lock Developer Documentation
78           https://www.freedesktop.org/wiki/Software/systemd/inhibit
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80        3. Writing Display Managers
81           https://www.freedesktop.org/wiki/Software/systemd/writing-display-managers
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83        4. Writing Desktop Environments
84           https://www.freedesktop.org/wiki/Software/systemd/writing-desktop-environments
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88systemd 254                                          SYSTEMD-LOGIND.SERVICE(8)
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