<?xml version='1.0'?> <!--*-nxml-*--> <!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 resolution.</para> </refsect1> <xi:include href="standard-conf.xml" xpointer="main-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, disables both. If set to <literal>resolve</literal>, only resolution 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>