<?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"> <!-- This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. --> <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>