<?xml version="1.0"?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-<!-- SPDX-License-Identifier: LGPL-2.1+ -->
+ "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="sysctl.d"
xmlns:xi="http://www.w3.org/2001/XInclude">
</refnamediv>
<refsynopsisdiv>
- <para><filename>/etc/sysctl.d/*.conf</filename></para>
- <para><filename>/run/sysctl.d/*.conf</filename></para>
- <para><filename>/usr/lib/sysctl.d/*.conf</filename></para>
+ <para><simplelist>
+ <member><filename>/etc/sysctl.d/*.conf</filename></member>
+ <member><filename>/run/sysctl.d/*.conf</filename></member>
+ <member><filename>/usr/local/lib/sysctl.d/*.conf</filename></member>
+ <member><filename>/usr/lib/sysctl.d/*.conf</filename></member>
+ </simplelist></para>
<programlisting>key.name.under.proc.sys = some value
key/name/under/proc/sys = some value
<literal>net.ipv4.conf.enp3s0/200.forwarding</literal> or
<literal>net/ipv4/conf/enp3s0.200/forwarding</literal> may be used to refer to
<filename>/proc/sys/net/ipv4/conf/enp3s0.200/forwarding</filename>. A glob
- <citerefentry><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry> pattern may be
+ <citerefentry project='man-pages'><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry> pattern may be
used to write the same value to all matching keys. Keys for which an explicit pattern exists will be
excluded from any glob matching. In addition, a key may be explicitly excluded from being set by any
matching glob patterns by specifying the key name prefixed with a <literal>-</literal> character and not
followed by <literal>=</literal>, see SYNOPSIS.</para>
<para>Any access permission errors and attempts to write variables not present on the local system are
- logged, but do not cause the service to fail. Debug log level is used, which means that the message will
- not show up at all by default. Moreover, if a variable assignment is prefixed with a single
- <literal>-</literal> character, any failure to set the variable will be logged at debug level, but will
- not cause the service to fail. All other errors when setting variables are logged with higher priority
- and cause the service to return failure at the end (other variables are still processed).</para>
+ logged at debug level and do not cause the service to fail. Other types of errors when setting variables
+ are logged with higher priority and cause the service to return failure at the end (after processing
+ other variables). As an exception, if a variable assignment is prefixed with a single
+ <literal>-</literal> character, failure to set the variable for any reason will be logged at debug level
+ and will not cause the service to fail.</para>
<para>The settings configured with <filename>sysctl.d</filename> files will be applied early on boot. The
network interface-specific options will also be applied individually for each network interface as it
<example>
<title>Set network routing properties for all interfaces</title>
- <para><filename>/etc/systemd/20-rp_filter.conf</filename>:</para>
+ <para><filename>/etc/sysctl.d/20-rp_filter.conf</filename>:</para>
<programlisting>net.ipv4.conf.default.rp_filter = 2
net.ipv4.conf.*.rp_filter = 2
<refsect1>
<title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd-sysctl.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry project='man-pages'><refentrytitle>sysctl.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry project='man-pages'><refentrytitle>modprobe</refentrytitle><manvolnum>8</manvolnum></citerefentry>
- </para>
+ <para><simplelist type="inline">
+ <member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
+ <member><citerefentry><refentrytitle>systemd-sysctl.service</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
+ <member><citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
+ <member><citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
+ <member><citerefentry project='man-pages'><refentrytitle>sysctl.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry></member>
+ <member><citerefentry project='man-pages'><refentrytitle>modprobe</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
+ </simplelist></para>
</refsect1>
</refentry>