systemd-stable/man/systemd-logind.service.xml

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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<refentry id="systemd-logind.service" conditional='ENABLE_LOGIND'>

        <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>