SYSTEMD-LOGIND.SERVICE(8) systemd-logind.service SYSTEMD-LOGIND.SERVICE(8)
systemd-logind.service, systemd-logind - Login manager
systemd-logind.service
/usr/lib/systemd/systemd-logind
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 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].
systemd(1), systemd-user-sessions.service(8), loginctl(1),
logind.conf(5), pam_systemd(8), sd-login(3)
1. polkit
http://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
http://www.freedesktop.org/wiki/Software/systemd/writing-desktop-environments
This page is part of the systemd (systemd system and service manager)
project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a bug
report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩. This
page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
systemd 246 SYSTEMD-LOGIND.SERVICE(8)
Pages that refer to this page: sd-login(3) , systemd.slice(5) , systemd-user-runtime-dir(5) , user-runtime-dir.service(5) , user-runtime-dir@.service(5) , user.service(5) , user@.service(5) , 30-systemd-environment-d-generator(7) , systemd.index(7) , systemd.special(7)