sd-event: define a new PREPARING state

[thirdparty/systemd.git] / man / systemd-user-sessions.service.xml

<?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">
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  Copyright 2012 Lennart Poettering

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<refentry id="systemd-user-sessions.service" conditional='HAVE_PAM'>

  <refentryinfo>
    <title>systemd-user-sessions.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-user-sessions.service</refentrytitle>
    <manvolnum>8</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>systemd-user-sessions.service</refname>
    <refname>systemd-user-sessions</refname>
    <refpurpose>Permit user logins after boot, prohibit user logins at shutdown</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <para><filename>systemd-user-sessions.service</filename></para>
    <para><filename>/usr/lib/systemd/systemd-user-sessions</filename></para>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para><filename>systemd-user-sessions.service</filename> is a
    service that controls user logins through
    <citerefentry project='man-pages'><refentrytitle>pam_nologin</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
    After basic system initialization is complete, it removes
    <filename>/run/nologin</filename>, thus permitting logins. Before
    system shutdown, it creates <filename>/run/nologin</filename>, thus
    prohibiting further logins.</para>
  </refsect1>

  <refsect1>
    <title>See Also</title>
    <para>
      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
      <citerefentry project='man-pages'><refentrytitle>pam_nologin</refentrytitle><manvolnum>8</manvolnum></citerefentry>
    </para>
  </refsect1>

</refentry>