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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"

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<refentry id="systemd-logind.service">

<refentryinfo>

<title>systemd-logind.service</title>

<productname>systemd</productname>

<authorgroup>

<author>

<contrib>Developer</contrib>

<firstname>Lennart</firstname>

<surname>Poettering</surname>

<email>lennart@poettering.net</email>

</author>

</authorgroup>

</refentryinfo>

<refmeta>

<refentrytitle>systemd-logind.service</refentrytitle>

<manvolnum>8</manvolnum>

</refmeta>

<refnamediv>

<refname>systemd-logind.service</refname>

<refname>systemd-logind</refname>

<refpurpose>Login manager</refpurpose>

</refnamediv>

<refsynopsisdiv>

<para><filename>systemd-logind.service</filename></para>

<para><filename>/usr/lib/systemd/systemd-logind</filename></para>

</refsynopsisdiv>

<refsect1>

<title>Description</title>

<para><filename>systemd-logind</filename> is a system

service that manages user logins. It is responsible

for:</para>

<itemizedlist>

<listitem><para>Keeping track of users and sessions, their

processes and their idle state</para></listitem>

<listitem><para>Creating control groups for

user processes</para></listitem>

<listitem><para>Providing PolicyKit-based access

for users to operations such as system

shutdown or sleep</para></listitem>

<listitem><para>Implementing a shutdown/sleep

inhibition logic for

applications</para></listitem>

<listitem><para>Handling of power/sleep

hardware keys</para></listitem>

<listitem><para>Multi-seat

management</para></listitem>

<listitem><para>Session

switch management</para></listitem>

<listitem><para>Device access management for

users</para></listitem>

<listitem><para>Automatic spawning of text

logins (gettys) on virtual console activation

and user runtime directory

management</para></listitem>

</itemizedlist>

<para>User sessions are registered in logind via the

<citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>

PAM module.</para>

<para>See

<citerefentry><refentrytitle>logind.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>

for information about the configuration of this

service.</para>

<para>See <ulink

url="http://www.freedesktop.org/wiki/Software/systemd/multiseat">Multi-Seat

on Linux</ulink> for an introduction into basic

concepts of logind such as users, sessions and seats.</para>

<para>See the <ulink

url="http://www.freedesktop.org/wiki/Software/systemd/logind">

logind D-Bus API Documentation</ulink> for information about

the APIs <filename>systemd-logind</filename>

provides.</para>

<para>For more information on the inhibition logic see

the <ulink

url="http://www.freedesktop.org/wiki/Software/systemd/inhibit">Inhibitor

Lock Developer Documentation</ulink>.</para>

</refsect1>

<refsect1>

<title>See Also</title>

<para>

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,

<citerefentry><refentrytitle>systemd-user-sessions.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

<citerefentry><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,

<citerefentry><refentrytitle>logind.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,

<citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>

</para>

</refsect1>

</refentry>