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systemd/man/systemd-logind.service.xml

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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<refentry id="systemd-logind.service" conditional='ENABLE_LOGIND'>
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<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>
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</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>systemd-logind</command> 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>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>
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</refentry>