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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 2014 Tom Gundersen
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="resolved.conf" conditional='ENABLE_RESOLVED'
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>resolved.conf</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Tom</firstname>
<surname>Gundersen</surname>
<email>teg@jklm.no</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>resolved.conf</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>resolved.conf</refname>
<refname>resolved.conf.d</refname>
<refpurpose>Network Name Resolution configuration files</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/etc/systemd/resolved.conf</filename></para>
<para><filename>/etc/systemd/resolved.conf.d/*.conf</filename></para>
<para><filename>/run/systemd/resolved.conf.d/*.conf</filename></para>
<para><filename>/usr/lib/systemd/resolved.conf.d/*.conf</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>These configuration files control local DNS and LLMNR
name resolving.</para>
</refsect1>
<xi:include href="standard-conf.xml" xpointer="confd" />
<xi:include href="standard-conf.xml" xpointer="conf" />
<refsect1>
<title>Options</title>
<variablelist class='network-directives'>
<varlistentry>
<term><varname>DNS=</varname></term>
<listitem><para>A space separated list
of IPv4 and IPv6 addresses to be used
as system DNS servers. DNS requests
are sent to one of the listed DNS
servers in parallel to any
per-interface DNS servers acquired
from
<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. For
compatibility reasons, if set to the
empty list the DNS servers listed in
<filename>/etc/resolv.conf</filename>
are used, if any are
configured there. This setting
defaults to the empty
list.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>FallbackDNS=</varname></term>
<listitem><para>A space separated list
of IPv4 and IPv6 addresses to be used
as the fallback DNS servers. Any
per-interface DNS servers obtained
from
<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
take precedence over this setting, as
do any servers set via
<varname>DNS=</varname> above or
<filename>/etc/resolv.conf</filename>. This
setting is hence only used if no other
DNS server information is known. If
this option is not given, a
compiled-in list of DNS servers is
used instead.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>LLMNR=</varname></term>
<listitem><para>Takes a boolean
argument or
<literal>resolve</literal>. Controls
Link-Local Multicast Name Resolution support (<ulink
url="https://tools.ietf.org/html/rfc4795">RFC
4794</ulink>) on the local host. If
true enables full LLMNR responder and
resolver support. If false disable
both. If set to
<literal>resolve</literal> only
resolving support is enabled, but
responding is disabled. Note that
<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
also maintains per-interface LLMNR
settings. LLMNR will be enabled on an
interface only if the per-interface
and the global setting is
on.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>resolv.conf</refentrytitle><manvolnum>4</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
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