man/systemd-user-sessions.service.xml

   1 <?xml version="1.0"?>
   2 <!--*-nxml-*-->
   3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4 <!--
   5   This file is part of systemd.
   6
   7   Copyright 2012 Lennart Poettering
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 -->
  22 <refentry id="systemd-user-sessions.service" conditional='HAVE_PAM'>
  23
  24   <refentryinfo>
  25     <title>systemd-user-sessions.service</title>
  26     <productname>systemd</productname>
  27
  28     <authorgroup>
  29       <author>
  30         <contrib>Developer</contrib>
  31         <firstname>Lennart</firstname>
  32         <surname>Poettering</surname>
  33         <email>lennart@poettering.net</email>
  34       </author>
  35     </authorgroup>
  36   </refentryinfo>
  37
  38   <refmeta>
  39     <refentrytitle>systemd-user-sessions.service</refentrytitle>
  40     <manvolnum>8</manvolnum>
  41   </refmeta>
  42
  43   <refnamediv>
  44     <refname>systemd-user-sessions.service</refname>
  45     <refname>systemd-user-sessions</refname>
  46     <refpurpose>Permit user logins after boot, prohibit user logins at shutdown</refpurpose>
  47   </refnamediv>
  48
  49   <refsynopsisdiv>
  50     <para><filename>systemd-user-sessions.service</filename></para>
  51     <para><filename>/usr/lib/systemd/systemd-user-sessions</filename></para>
  52   </refsynopsisdiv>
  53
  54   <refsect1>
  55     <title>Description</title>
  56
  57     <para><filename>systemd-user-sessions.service</filename> is a
  58     service that controls user logins. After basic system
  59     initialization is complete it removes
  60     <filename>/run/nologin</filename>, thus permitting logins. Before
  61     system shutdown it creates <filename>/run/nologin</filename>, thus
  62     prohibiting further logins. At the same time it also kills all
  63     user processes, so that system shutdown may proceed without any
  64     remaining user processes around.</para>
  65   </refsect1>
  66
  67   <refsect1>
  68     <title>See Also</title>
  69     <para>
  70       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  71       <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
  72       <citerefentry project='man-pages'><refentrytitle>pam_nologin</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  73     </para>
  74   </refsect1>
  75
  76 </refentry>