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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 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>
<para>Each configuration file shall be named in the style of
<filename><replaceable>filename</replaceable>.conf</filename>.
Files in <filename>/etc/</filename> override files with the
same name in <filename>/usr/lib/</filename> and
<filename>/run/</filename>. Files in
<filename>/run/</filename> override files with the same name in
<filename>/usr/lib/</filename>. Packages should install their
configuration files in <filename>/usr/lib/</filename>. Files in
<filename>/etc/</filename> are reserved for the local
administrator, who may use this logic to override the
configuration files installed by vendor packages. All
configuration files are sorted by their filename in
lexicographic order, regardless of which of the directories
they reside in. If multiple files specify the same option, the
entry in the file with the lexicographically latest name will
be applied; entries in any <filename>logind.conf.d</filename>
file override entries in
<filename>/etc/systemd/logind.conf</filename>. It is
recommended to prefix all filenames with a two-digit number and
a dash, to simplify the ordering of the files.</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 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 completely logs out (i.e. after
the user's last session ended). Defaults to
<literal>no</literal>.</para>
<para>Note that setting
<varname>KillUserProcesses=1</varname>
will break tools like
<citerefentry><refentrytitle>screen</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 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>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>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>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 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>
|
