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<?xml version='1.0'?> <!--*-nxml-*-->
<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
<!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="logind.conf" conditional='ENABLE_LOGIND'>
        <refentryinfo>
                <title>logind.conf</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>logind.conf</refentrytitle>
                <manvolnum>5</manvolnum>
        </refmeta>

        <refnamediv>
                <refname>logind.conf</refname>
                <refpurpose>Login manager configuration file</refpurpose>
        </refnamediv>

        <refsynopsisdiv>
                <para><filename>/etc/systemd/logind.conf</filename></para>
        </refsynopsisdiv>

        <refsect1>
                <title>Description</title>

                <para>This file configures various parameters of the systemd login manager, <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>

        </refsect1>

        <refsect1>
                <title>Options</title>

                <para>All options are configured in the
                <literal>[Login]</literal> section:</para>

                <variablelist>

                        <varlistentry>
                                <term><varname>NAutoVTs=</varname></term>

                                <listitem><para>Takes a positive
                                integer. Configures how many virtual
                                terminals (VTs) to allocate by default
                                that -- when switched to and
                                previously unused --
                                <literal>autovt</literal> services are
                                automatically spawned on. These
                                services are instantiated from the
                                template unit
                                <filename>autovt@.service</filename>
                                for the respective VT TTY name,
                                e.g. <filename>autovt@tty4.service</filename>. By
                                default,
                                <filename>autovt@.service</filename>
                                is linked to
                                <filename>getty@.service</filename>,
                                i.e. login prompts are started
                                dynamically as the user switches to
                                unused virtual terminals. Hence, this
                                parameter controls how many login
                                <literal>gettys</literal> are
                                available on the VTs. If a VT is
                                already used by some other subsystem
                                (for example a graphical login), this
                                kind of activation will not be
                                attempted. Note that the VT configured
                                in <varname>ReserveVT=</varname> is
                                always subject to this kind of
                                activation, even if it is not one of
                                VTs configured with the
                                <varname>NAutoVTs=</varname>
                                directive. Defaults to 6. When set to
                                0, automatic spawning of
                                <literal>autovt</literal> services is
                                disabled.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>ReserveVT=</varname></term>

                                <listitem><para>Takes a positive
                                integer. Configures the number of one
                                virtual terminal that shall
                                unconditionally be reserved for
                                <filename>autovt@.service</filename>
                                activation (see above). The VT
                                selected with this option will be
                                marked busy unconditionally so that no
                                other subsystem will allocate it. This
                                functionality is useful to ensure that
                                regardless how many VTs are allocated
                                by other subsystems, one login
                                <literal>getty</literal> is always
                                available. Defaults to 6 (with other
                                words: there will always be a
                                <literal>getty</literal> available on
                                Alt-F6.). When set to 0, VT
                                reservation is
                                disabled.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>KillUserProcesses=</varname></term>

                                <listitem><para>Takes a boolean
                                argument. Configures whether the
                                processes of a user should be killed
                                when she or he completely logs out (i.e. after
                                her/his last session ended). Defaults to
                                <literal>no</literal>.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>IdleAction=</varname></term>

                                <listitem><para>Configures the action
                                to take when the system is idle. Takes
                                one of <literal>ignore</literal>,
                                <literal>poweroff</literal>,
                                <literal>reboot</literal>,
                                <literal>halt</literal>,
                                <literal>kexec</literal>,
                                <literal>suspend</literal>,
                                <literal>hibernate</literal>,
                                <literal>hybrid-sleep</literal>,
                                <literal>lock</literal>. Defaults to
                                <literal>ignore</literal>.</para>

                                <para>Note that this requires that
                                user sessions correctly report the
                                idle status to the system. The system
                                will execute the action after all
                                sessions reported that they are idle,
                                and no idle inhibitor lock is active,
                                and subsequently the time configured
                                with <varname>IdleActionSec=</varname>
                                (see below) has passed.</para>
                                </listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>IdleActionSec=</varname></term>

                                <listitem><para>Configures the delay
                                after which the action configured in
                                <varname>IdleAction=</varname> (see
                                above) is taken after the system is
                                idle.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>KillOnlyUsers=</varname></term>
                                <term><varname>KillExcludeUsers=</varname></term>

                                <listitem><para>These settings take
                                space-separated lists of usernames
                                that influence the effect of
                                <varname>KillUserProcesses=</varname>. If
                                not empty, only processes of users
                                listed in
                                <varname>KillOnlyUsers</varname> will
                                be killed when they log out
                                entirely. Processes of users listed in
                                <varname>KillExcludeUsers=</varname>
                                are excluded from being
                                killed. <varname>KillExcludeUsers=</varname>
                                defaults to <literal>root</literal>
                                and takes precedence over
                                <varname>KillOnlyUsers=</varname>
                                which defaults to the empty list.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>Controllers=</varname></term>
                                <term><varname>ResetControllers=</varname></term>

                                <listitem><para>These settings control
                                the default control group hierarchies
                                users logging in are added to, in
                                addition to the
                                <literal>name=systemd</literal> named
                                hierarchy. These settings take
                                space-separated lists of controller
                                names. Pass the empty string to ensure
                                that logind does not touch any
                                hierarchies but systemd's own. When
                                logging in, user sessions will get
                                private control groups in all
                                hierarchies listed in
                                <varname>Controllers=</varname> and be
                                reset to the root control group in all
                                hierarchies listed in
                                <varname>ResetControllers=</varname>. <varname>Controllers=</varname>
                                defaults to the empty list,
                                <varname>ResetControllers=</varname>
                                defaults to
                                <literal>cpu</literal>. Note that for
                                all controllers that are not listed in
                                either <varname>Controllers=</varname>
                                or
                                <varname>ResetControllers=</varname>,
                                newly created sessions will be part of
                                the control groups of the system
                                service that created the
                                session.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>InhibitDelayMaxSec=</varname></term>

                                <listitem><para>Specifies the maximum
                                time a system shutdown or sleep
                                request is delayed due to an inhibitor
                                lock of type <literal>delay</literal>
                                being active -- before it is ignored
                                and the operation executed
                                anyway. Defaults to
                                5s.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>HandlePowerKey=</varname></term>
                                <term><varname>HandleSuspendKey=</varname></term>
                                <term><varname>HandleHibernateKey=</varname></term>
                                <term><varname>HandleLidSwitch=</varname></term>

                                <listitem><para>Controls whether
                                logind shall handle the system power
                                and sleep keys and the lid switch to
                                trigger actions such as system
                                power-off or suspend. Can be one of
                                <literal>ignore</literal>,
                                <literal>poweroff</literal>,
                                <literal>reboot</literal>,
                                <literal>halt</literal>,
                                <literal>kexec</literal>,
                                <literal>suspend</literal>,
                                <literal>hibernate</literal>,
                                <literal>hybrid-sleep</literal> and
                                <literal>lock</literal>. If
                                <literal>ignore</literal>, logind will
                                never handle these keys. If
                                <literal>lock</literal>, all running
                                sessions will be screen-locked; otherwise,
                                the specified action
                                will be taken in the respective
                                event. Only input devices with the
                                <literal>power-switch</literal> udev
                                tag will be watched for key/lid switch
                                events. <varname>HandlePowerKey=</varname>
                                defaults to
                                <literal>poweroff</literal>.
                                <varname>HandleSuspendKey=</varname>
                                and
                                <varname>HandleLidSwitch=</varname>
                                default to <literal>suspend</literal>.
                                <varname>HandleHibernateKey=</varname>
                                defaults to
                                <literal>hibernate</literal>.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><varname>PowerKeyIgnoreInhibited=</varname></term>
                                <term><varname>SuspendKeyIgnoreInhibited=</varname></term>
                                <term><varname>HibernateKeyIgnoreInhibited=</varname></term>
                                <term><varname>LidSwitchIgnoreInhibited=</varname></term>

                                <listitem><para>Controls whether
                                actions triggered by the power and
                                sleep keys and the lid switch are
                                subject to inhibitor locks. These
                                settings take boolean arguments. If
                                <literal>off</literal>, the inhibitor
                                locks taken by applications in order
                                to block the requested operation are
                                respected. If <literal>on</literal>,
                                the requested operation is executed in
                                any
                                case. <varname>PowerKeyIgnoreInhibited=</varname>,
                                <varname>SuspendKeyIgnoreInhibited=</varname>
                                and
                                <varname>HibernateKeyIgnoreInhibited=</varname>
                                defaults to <literal>off</literal>,
                                <varname>LidSwitchIgnoreInhibited=</varname>
                                defaults to
                                <literal>yes</literal>. This means
                                that the lid switch does not respect
                                suspend blockers by default, but the
                                power and sleep keys do.
                                </para></listitem>
                        </varlistentry>

                </variablelist>

                <para>Note that setting
                <varname>KillUserProcesses=1</varname> will break tools
                like
                <citerefentry><refentrytitle>screen</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>

                <para>Note that <varname>KillUserProcesses=1</varname>
                is a weaker version of
                <varname>kill-session-processes=1</varname>, which may
                be configured per-service for
                <citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>. The
                latter kills processes of a session as soon as it
                ends, the former kills processes as soon as the last
                session of the user ends.</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><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                          <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
                  </para>
        </refsect1>

</refentry>