man/systemd-logind.service.xml

   1 <?xml version='1.0'?> <!--*-nxml-*-->
   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   3         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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   8   Copyright 2010 Lennart Poettering
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  23
  24 <refentry id="systemd-logind.service">
  25
  26         <refentryinfo>
  27                 <title>systemd-logind.service</title>
  28                 <productname>systemd</productname>
  29
  30                 <authorgroup>
  31                         <author>
  32                                 <contrib>Developer</contrib>
  33                                 <firstname>Lennart</firstname>
  34                                 <surname>Poettering</surname>
  35                                 <email>lennart@poettering.net</email>
  36                         </author>
  37                 </authorgroup>
  38         </refentryinfo>
  39
  40         <refmeta>
  41                 <refentrytitle>systemd-logind.service</refentrytitle>
  42                 <manvolnum>8</manvolnum>
  43         </refmeta>
  44
  45         <refnamediv>
  46                 <refname>systemd-logind.service</refname>
  47                 <refname>systemd-logind</refname>
  48                 <refpurpose>Login manager</refpurpose>
  49         </refnamediv>
  50
  51         <refsynopsisdiv>
  52                 <para><filename>systemd-logind.service</filename></para>
  53                 <para><filename>/usr/lib/systemd/systemd-logind</filename></para>
  54         </refsynopsisdiv>
  55
  56         <refsect1>
  57                 <title>Description</title>
  58
  59                 <para><filename>systemd-logind</filename> is a system
  60                 service that manages user logins. It is responsible
  61                 for:</para>
  62
  63                 <itemizedlist>
  64                         <listitem><para>Keeping track of users and sessions, their
  65                         processes and their idle state</para></listitem>
  66
  67                         <listitem><para>Creating control groups for
  68                         user processes</para></listitem>
  69
  70                         <listitem><para>Providing PolicyKit-based access
  71                         for users to operations such as system
  72                         shutdown or sleep</para></listitem>
  73
  74                         <listitem><para>Implementing a shutdown/sleep
  75                         inhibition logic for
  76                         applications</para></listitem>
  77
  78                         <listitem><para>Handling of power/sleep
  79                         hardware keys</para></listitem>
  80
  81                         <listitem><para>Multi-seat
  82                         management</para></listitem>
  83
  84                         <listitem><para>Session
  85                         switch management</para></listitem>
  86
  87                         <listitem><para>Device access management for
  88                         users</para></listitem>
  89
  90                         <listitem><para>Automatic spawning of text
  91                         logins (gettys) on virtual console activation
  92                         and user runtime directory
  93                         management</para></listitem>
  94                 </itemizedlist>
  95
  96                 <para>User sessions are registered in logind via the
  97                 <citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  98                 PAM module.</para>
  99
 100                 <para>See
 101                 <citerefentry><refentrytitle>logind.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 102                 for information about the configuration of this
 103                 service.</para>
 104
 105                 <para>See <ulink
 106                 url="http://www.freedesktop.org/wiki/Software/systemd/multiseat">Multi-Seat
 107                 on Linux</ulink> for an introduction into basic
 108                 concepts of logind such as users, sessions and seats.</para>
 109
 110                 <para>See the <ulink
 111                 url="http://www.freedesktop.org/wiki/Software/systemd/logind">
 112                 logind D-Bus API Documentation</ulink> for information about
 113                 the APIs <filename>systemd-logind</filename>
 114                 provides.</para>
 115
 116                 <para>For more information on the inhibition logic see
 117                 the <ulink
 118                 url="http://www.freedesktop.org/wiki/Software/systemd/inhibit">Inhibitor
 119                 Lock Developer Documentation</ulink>.</para>
 120         </refsect1>
 121
 122         <refsect1>
 123                 <title>See Also</title>
 124                 <para>
 125                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 126                         <citerefentry><refentrytitle>systemd-user-sessions.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 127                         <citerefentry><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 128                         <citerefentry><refentrytitle>logind.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 129                         <citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 130                 </para>
 131         </refsect1>
 132
 133 </refentry>