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352 lines
18 KiB
XML
352 lines
18 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="logind.conf" conditional='ENABLE_LOGIND'>
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<refentryinfo>
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<title>logind.conf</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>logind.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>logind.conf</refname>
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<refpurpose>Login manager configuration file</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/systemd/logind.conf</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>This file configures various parameters of the systemd login manager <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>All options are configured in the
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<literal>[Login]</literal> section:</para>
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<variablelist>
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<varlistentry>
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<term><varname>NAutoVTs=</varname></term>
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<listitem><para>Takes a positive
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integer. Configures how many virtual
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terminals (VTs) to allocate by default
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that -- when switched to and
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previously unused --
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<literal>autovt</literal> services are
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automatically spawned on. These
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services are instantiated from the
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template unit
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<filename>autovt@.service</filename>
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for the respective VT TTY name,
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e.g. <filename>autovt@tty4.service</filename>. By
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default
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<filename>autovt@.service</filename>
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is linked to
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<filename>getty@.service</filename>,
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i.e. login prompts are started
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dynamically as the user switches to
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unused virtual terminals. Hence, this
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parameter controls how many login
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<literal>gettys</literal> are
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available on the VTs. If a VT is
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already used by some other subsystem
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(for example a graphical login) this
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kind of activation will not be
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attempted. Note that the VT configured
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in <varname>ReserveVT=</varname> is
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always subject to this kind of
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activation, even if it is not one of
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VTs configured with the
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<varname>NAutoVTs=</varname>
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directive. Defaults to 6. When set to
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0, automatic spawning of
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<literal>autovt</literal> services is
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disabled. </para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ReserveVT=</varname></term>
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<listitem><para>Takes a positive
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integer. Configures the number of one
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virtual terminal that shall
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unconditionally be reserved for
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<filename>autovt@.service</filename>
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activation (see above). The VT
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selected with this option will be
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marked busy unconditionally so that no
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other subsystem will allocate it. This
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functionality is useful to ensure that
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regardless how many VTs are allocated
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by other subsystems one login
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<literal>getty</literal> is always
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available. Defaults to 6 (with other
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words: there'll always be a
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<literal>getty</literal> available on
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Alt-F6.). When set to 0, VT
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reservation is
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disabled.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>KillUserProcesses=</varname></term>
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<listitem><para>Takes a boolean
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argument. Configures whether the
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processes of a user should be killed
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when she or he completely logs out (i.e. after
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her/his last session ended). Defaults to
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<literal>no</literal>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>IdleAction=</varname></term>
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<listitem><para>Configures the action
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to take when the system is idle. Takes
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one of <literal>ignore</literal>,
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<literal>poweroff</literal>,
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<literal>reboot</literal>,
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<literal>halt</literal>,
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<literal>kexec</literal>,
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<literal>suspend</literal>,
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<literal>hibernate</literal>,
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<literal>hybrid-sleep</literal>,
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<literal>lock</literal>. Defaults to
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<literal>ignore</literal>.</para>
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<para>Note that this requires that
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user sessions correctly report the
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idle status to the system. The system
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will execute the action after all
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sessions reported that they are idle,
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and no idle inhibitor lock is active,
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and subsequently the time configured
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with <varname>IdleActionSec=</varname>
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(see below) has passed.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>IdleActionSec=</varname></term>
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<listitem><para>Configures the delay
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after which the action configured in
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<varname>IdleAction=</varname> (see
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above) is taken after the system is
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idle.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>KillOnlyUsers=</varname></term>
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<term><varname>KillExcludeUsers=</varname></term>
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<listitem><para>These settings take
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space separated lists of user names
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that influence the effect of
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<varname>KillUserProcesses=</varname>. If
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not empty only processes of users
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listed in
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<varname>KillOnlyUsers</varname> will
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be killed when they log out
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entirely. Processes of users listed in
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<varname>KillExcludeUsers=</varname>
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are excluded from being
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killed. <varname>KillExcludeUsers=</varname>
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defaults to <literal>root</literal>
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and takes precedence over
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<varname>KillOnlyUsers=</varname>
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which defaults to the empty list.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Controllers=</varname></term>
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<term><varname>ResetControllers=</varname></term>
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<listitem><para>These settings control
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the default control group hierarchies
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users logging in are added to, in
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addition to the
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<literal>name=systemd</literal> named
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hierarchy. These settings take space
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separated lists of controller
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names. Pass the empty string to ensure
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that logind does not touch any
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hierarchies but systemd's own. When
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logging in user sessions will get
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private control groups in all
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hierarchies listed in
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<varname>Controllers=</varname> and be
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reset to the root control group in all
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hierarchies listed in
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<varname>ResetControllers=</varname>. <varname>Controllers=</varname>
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defaults to the empty list,
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<varname>ResetControllers=</varname>
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defaults to
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<literal>cpu</literal>. Note that for
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all controllers that are not listed in
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either <varname>Controllers=</varname>
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nor
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<varname>ResetControllers=</varname>
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newly created sessions will be part of
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the control groups of the system
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service that created the
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session.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>InhibitDelayMaxSec=</varname></term>
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<listitem><para>Specifies the maximum
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time a system shutdown or sleep
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request is delayed due to an inhibitor
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lock of type <literal>delay</literal>
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being active -- before it is ignored
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and the operation executed
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anyway. Defaults to
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5s.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>HandlePowerKey=</varname></term>
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<term><varname>HandleSuspendKey=</varname></term>
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<term><varname>HandleHibernateKey=</varname></term>
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<term><varname>HandleLidSwitch=</varname></term>
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<listitem><para>Controls whether
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logind shall handle the system power
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and sleep keys and the lid switch to
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trigger actions such as system
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power-off or suspend. Can be one of
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<literal>ignore</literal>,
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<literal>poweroff</literal>,
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<literal>reboot</literal>,
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<literal>halt</literal>,
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<literal>kexec</literal>,
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<literal>suspend</literal>,
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<literal>hibernate</literal>,
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<literal>hybrid-sleep</literal> and
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<literal>lock</literal>. If
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<literal>ignore</literal> logind will
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never handle these keys. If
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<literal>lock</literal> all running
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sessions will be screen
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locked. Otherwise the specified action
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will be taken in the respective
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event. Only input devices with the
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<literal>power-switch</literal> udev
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tag will be watched for key/lid switch
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events. <varname>HandlePowerKey=</varname>
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defaults to
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<literal>poweroff</literal>.
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<varname>HandleSuspendKey=</varname>
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and
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<varname>HandleLidSwitch=</varname>
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default to <literal>suspend</literal>.
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<varname>HandleHibernateKey=</varname>
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defaults to
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<literal>hibernate</literal>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>PowerKeyIgnoreInhibited=</varname></term>
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<term><varname>SuspendKeyIgnoreInhibited=</varname></term>
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<term><varname>HibernateKeyIgnoreInhibited=</varname></term>
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<term><varname>LidSwitchIgnoreInhibited=</varname></term>
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<listitem><para>Controls whether
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actions triggered by the power and
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sleep keys and the lid switch are
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subject to inhibitor locks. These
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settings take boolean arguments. If
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<literal>off</literal> the inhibitor
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locks taken by applications in order
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to block the requested operation are
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respected, if <literal>on</literal>
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the requested operation is executed in
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any
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case. <varname>PowerKeyIgnoreInhibited=</varname>,
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<varname>SuspendKeyIgnoreInhibited=</varname>
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and
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<varname>HibernateKeyIgnoreInhibited=</varname>
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defaults to <literal>off</literal>,
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<varname>LidSwitchIgnoreInhibited=</varname>
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defaults to
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<literal>yes</literal>. This means
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that the lid switch does not respect
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suspend blockers by default, but the
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power and sleep keys do.
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</para></listitem>
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</varlistentry>
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</variablelist>
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<para>Note that setting
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<varname>KillUserProcesses=1</varname> will break tools
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like
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<citerefentry><refentrytitle>screen</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
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<para>Note that <varname>KillUserProcesses=1</varname>
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is a weaker version of
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<varname>kill-session-processes=1</varname> which may
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be configured per-service for
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<citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>. The
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latter kills processes of a session as soon as it
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ends, the former kills processes as soon as the last
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session of the user ends.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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