<?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>systemd 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>
- </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>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
+
+<refentry id="systemd-logind.service" conditional='ENABLE_LOGIND'>
+
+ <refentryinfo>
+ <title>systemd-logind.service</title>
+ <productname>systemd</productname>
+ </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><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. This is implemented by
+ allocating a systemd slice unit for each user below <filename>user.slice</filename>, 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
+ <filename>user@.service</filename> for each logged in user.</para></listitem>
+
+ <listitem><para>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.</para></listitem>
+
+ <listitem><para>Providing <ulink
+ url="http://www.freedesktop.org/wiki/Software/polkit">polkit</ulink>-based
+ access for users for 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 with 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
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for information about the basic concepts of logind
+ such as users, sessions and seats.</para>
+
+ <para>See the <ulink
+ url="https://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="https://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>
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
</refentry>
projects / thirdparty / systemd.git / blobdiff