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+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!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'
+    xmlns:xi="http://www.w3.org/2001/XInclude">
+  <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>
+    <refname>logind.conf.d</refname>
+    <refpurpose>Login manager configuration files</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <para><filename>/etc/systemd/logind.conf</filename></para>
+    <para><filename>/etc/systemd/logind.conf.d/*.conf</filename></para>
+    <para><filename>/run/systemd/logind.conf.d/*.conf</filename></para>
+    <para><filename>/usr/lib/systemd/logind.conf.d/*.conf</filename></para>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para>These files configure various parameters of the systemd
+    login manager,
+    <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
+    </para>
+  </refsect1>
+
+  <xi:include href="standard-conf.xml" xpointer="main-conf" />
+
+  <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 are 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, for example, <filename>autovt@tty4.service</filename>.
+        By default, <filename>autovt@.service</filename> is linked to
+        <filename>getty@.service</filename>. In other words, 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 the 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. Identifies 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 of how
+        many VTs are allocated by other subsystems, one login
+        <literal>getty</literal> is always available. Defaults to 6
+        (in 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 the user logs out. If true, the scope unit
+        corresponding to the session and all processes inside that scope will be
+        terminated. If false, the scope is "abandoned", see
+        <citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+        and processes are not killed. Defaults to <literal>yes</literal>,
+        but see the options <varname>KillOnlyUsers=</varname> and
+        <varname>KillExcludeUsers=</varname> below.</para>
+
+        <para>In addition to session processes, user process may run under the user
+        manager unit <filename>user@.service</filename>. Depending on the linger
+        settings, this may allow users to run processes independent of their login
+        sessions. See the description of <command>enable-linger</command> in
+        <citerefentry><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
+        </para>
+
+        <para>Note that setting <varname>KillUserProcesses=yes</varname>
+        will break tools like
+        <citerefentry project='die-net'><refentrytitle>screen</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+        and
+        <citerefentry project='die-net'><refentrytitle>tmux</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+        unless they are moved out of the session scope. See example in
+        <citerefentry><refentrytitle>systemd-run</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
+        </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 override
+        the <varname>KillUserProcesses=</varname> setting. A user name may be added to
+        <varname>KillExcludeUsers=</varname> to exclude the processes in the session scopes of
+        that user from being killed even if <varname>KillUserProcesses=yes</varname> is set. If
+        <varname>KillExcludeUsers=</varname> is not set, the <literal>root</literal> user is
+        excluded by default. <varname>KillExcludeUsers=</varname> may be set to an empty value
+        to override this default. If a user is not excluded, <varname>KillOnlyUsers=</varname>
+        is checked next. If this setting is specified, only the session scopes of those users
+        will be killed. Otherwise, users are subject to the
+        <varname>KillUserProcesses=yes</varname> setting.</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>, and
+        <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 report that they are idle, no
+        idle inhibitor lock is active, and subsequently, the time
+        configured with <varname>IdleActionSec=</varname> (see below)
+        has expired.</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>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 the inhibitor is
+        ignored and the operation executes anyway. Defaults to
+        5.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>HandlePowerKey=</varname></term>
+        <term><varname>HandleSuspendKey=</varname></term>
+        <term><varname>HandleHibernateKey=</varname></term>
+        <term><varname>HandleLidSwitch=</varname></term>
+        <term><varname>HandleLidSwitchDocked=</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>HandleLidSwitchDocked=</varname> defaults to
+        <literal>ignore</literal>.
+        <varname>HandleHibernateKey=</varname> defaults to
+        <literal>hibernate</literal>. If the system is inserted in a
+        docking station, or if more than one display is connected, the
+        action specified by <varname>HandleLidSwitchDocked=</varname>
+        occurs; otherwise the <varname>HandleLidSwitch=</varname>
+        action occurs.</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>no</literal>, the inhibitor locks taken by
+        applications in order to block the requested operation are
+        respected. If <literal>yes</literal>, the requested operation
+        is executed in any case.
+        <varname>PowerKeyIgnoreInhibited=</varname>,
+        <varname>SuspendKeyIgnoreInhibited=</varname> and
+        <varname>HibernateKeyIgnoreInhibited=</varname> default to
+        <literal>no</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>
+
+      <varlistentry>
+        <term><varname>HoldoffTimeoutSec=</varname></term>
+
+        <listitem><para>Specifies the timeout after system startup or
+        system resume in which systemd will hold off on reacting to
+        lid events. This is required for the system to properly
+        detect any hotplugged devices so systemd can ignore lid events
+        if external monitors, or docks, are connected. If set to 0,
+        systemd will always react immediately, possibly before the
+        kernel fully probed all hotplugged devices. This is safe, as
+        long as you do not care for systemd to account for devices
+        that have been plugged or unplugged while the system was off.
+        Defaults to 30s.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>RuntimeDirectorySize=</varname></term>
+
+        <listitem><para>Sets the size limit on the
+        <varname>$XDG_RUNTIME_DIR</varname> runtime directory for each
+        user who logs in. Takes a size in bytes, optionally suffixed
+        with the usual K, G, M, and T suffixes, to the base 1024
+        (IEC). Alternatively, a numerical percentage suffixed by
+        <literal>%</literal> may be specified, which sets the size
+        limit relative to the amount of physical RAM. Defaults to 10%.
+        Note that this size is a safety limit only. As each runtime
+        directory is a tmpfs file system, it will only consume as much
+        memory as is needed.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>InhibitorsMax=</varname></term>
+
+        <listitem><para>Controls the maximum number of concurrent inhibitors to permit. Defaults to 8192
+        (8K).</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>SessionsMax=</varname></term>
+
+        <listitem><para>Controls the maximum number of concurrent user sessions to manage. Defaults to 8192
+        (8K). Depending on how the <filename>pam_systemd.so</filename> module is included in the PAM stack
+        configuration, further login sessions will either be refused, or permitted but not tracked by
+        <filename>systemd-logind</filename>.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>UserTasksMax=</varname></term>
+
+        <listitem><para>Sets the maximum number of OS tasks each user may run concurrently. This controls the
+        <varname>TasksMax=</varname> setting of the per-user slice unit, see
+        <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+        for details. Defaults to 33%, which equals 10813 with the kernel's defaults on the host, but might be smaller
+        in OS containers.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>RemoveIPC=</varname></term>
+
+        <listitem><para>Controls whether System V and POSIX IPC objects belonging to the user shall be removed when the
+        user fully logs out. Takes a boolean argument. If enabled, the user may not consume IPC resources after the
+        last of the user's sessions terminated. This covers System V semaphores, shared memory and message queues, as
+        well as POSIX shared memory and message queues. Note that IPC objects of the root user and other system users
+        are excluded from the effect of this setting. Defaults to <literal>yes</literal>.</para></listitem>
+      </varlistentry>
+
+    </variablelist>
+  </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>