1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
<?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="systemd.conf">
<refentryinfo>
<title>systemd.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>systemd.conf</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd.conf</refname>
<refpurpose>systemd manager configuration file</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>system.conf</filename></para>
<para><filename>user.conf</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>When run as system instance systemd reads the
configuration file <filename>system.conf</filename>,
otherwise <filename>user.conf</filename>. These
configuration files contain a few settings controlling
basic manager operations.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>All options are configured in the
<literal>[Manager]</literal> section:</para>
<variablelist>
<varlistentry>
<term><varname>LogLevel=</varname></term>
<term><varname>LogTarget=</varname></term>
<term><varname>LogColor=</varname></term>
<term><varname>LogLocation=</varname></term>
<term><varname>DumpCore=yes</varname></term>
<term><varname>CrashShell=no</varname></term>
<term><varname>ShowStatus=yes</varname></term>
<term><varname>SysVConsole=yes</varname></term>
<term><varname>CrashChVT=1</varname></term>
<term><varname>DefaultStandardOutput=journal</varname></term>
<term><varname>DefaultStandardError=inherit</varname></term>
<listitem><para>Configures various
parameters of basic manager
operation. These options may be
overridden by the respective command
line arguments. See
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
for details about these command line
arguments.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>CPUAffinity=</varname></term>
<listitem><para>Configures the initial
CPU affinity for the init
process. Takes a space-separated list
of CPU indexes.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>DefaultControllers=cpu</varname></term>
<listitem><para>Configures in which
cgroup controller hierarchies to
create per-service cgroups
automatically, in addition to the
name=systemd named hierarchy. Defaults
to 'cpu'. Takes a space separated list
of controller names. Pass an empty
string to ensure that systemd does not
touch any hierarchies but its
own.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>JoinControllers=cpu,cpuacct</varname></term>
<listitem><para>Configures controllers
that shall be mounted in a single
hierarchy. By default systemd will
mount all controllers which are
enabled in the kernel in individual
hierachies, with the exception of
those listed in this setting. Takes a
space separated list of comma
separated controller names, in order
to allow multiple joined
hierarchies. Defaults to
'cpu,cpuacct'. Pass an empty string to
ensure that systemd mounts all
controllers in separate
hierarchies.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>RuntimeWatchdogSec=</varname></term>
<term><varname>ShutdownWatchdogSec=</varname></term>
<listitem><para>Configure the hardware
watchdog at runtime and at
reboot. Takes a timeout value in
seconds (or in other time units if
suffixed with <literal>ms</literal>,
<literal>min</literal>,
<literal>h</literal>,
<literal>d</literal>,
<literal>w</literal>). If
<varname>RuntimeWatchdogSec=</varname>
is set to a non-zero value the
watchdog hardware
(<filename>/dev/watchdog</filename>)
will be programmed to automatically
reboot the system if it is not
contacted within the specified timeout
interval. The system manager will
ensure to contact it at least once in
half the specified timeout
interval. This feature requires a
hardware watchdog device to be
present, as it is commonly the case in
embedded and server systems. Not all
hardware watchdogs allow configuration
of the reboot timeout, in which case
the closest available timeout is
picked. <varname>ShutdownWatchdogSec=</varname>
may be used to configure the hardware
watchdog when the system is asked to
reboot. It works as a safety net to
ensure that the reboot takes place
even if a clean reboot attempt times
out. By default
<varname>RuntimeWatchdogSec=</varname>
defaults to 0 (off), and
<varname>ShutdownWatchdogSec=</varname>
to 10min. These settings have no
effect if a hardware watchdog is not
available.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>CapabilityBoundingSet=</varname></term>
<listitem><para>Controls which
capabilities to include in the
capability bounding set for PID 1 and
its children. See
<citerefentry><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry>
for details. Takes a whitespace
separated list of capability names as
read by
<citerefentry><refentrytitle>cap_from_name</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
Capabilities listed will be included
in the bounding set, all others are
removed. If the list of capabilities
is prefixed with ~ all but the listed
capabilities will be included, the
effect of the assignment
inverted. Note that this option also
effects the respective capabilities in
the effective, permitted and
inheritable capability sets. The
capability bounding set may also be
individually configured for units
using the
<varname>CapabilityBoundingSet=</varname>
directive for units, but note that
capabilities dropped for PID 1 cannot
be regained in individual units, they
are lost for good.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>DefaultLimitCPU=</varname></term>
<term><varname>DefaultLimitFSIZE=</varname></term>
<term><varname>DefaultLimitDATA=</varname></term>
<term><varname>DefaultLimitSTACK=</varname></term>
<term><varname>DefaultLimitCORE=</varname></term>
<term><varname>DefaultLimitRSS=</varname></term>
<term><varname>DefaultLimitNOFILE=</varname></term>
<term><varname>DefaultLimitAS=</varname></term>
<term><varname>DefaultLimitNPROC=</varname></term>
<term><varname>DefaultLimitMEMLOCK=</varname></term>
<term><varname>DefaultLimitLOCKS=</varname></term>
<term><varname>DefaultLimitSIGPENDING=</varname></term>
<term><varname>DefaultLimitMSGQUEUE=</varname></term>
<term><varname>DefaultLimitNICE=</varname></term>
<term><varname>DefaultLimitRTPRIO=</varname></term>
<term><varname>DefaultLimitRTTIME=</varname></term>
<listitem><para>These settings control
various default resource limits for
units. See
<citerefentry><refentrytitle>setrlimit</refentrytitle><manvolnum>2</manvolnum></citerefentry>
for details. Use the string
<varname>infinity</varname> to
configure no limit on a specific
resource. These settings may be
overriden in individual units
using the corresponding LimitXXX=
directives. Note that these resource
limits are only defaults for units,
they are not applied to PID 1
itself.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
|
