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<?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" [
<!ENTITY % entities SYSTEM "custom-entities.ent" >
%entities;
]>

<!--
  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>&pkgsysconfdir;/resolved.conf</filename></para>
    <para><filename>&pkgsysconfdir;/resolved.conf.d/*.conf</filename></para>
    <para><filename>/run/systemd/resolved.conf.d/*.conf</filename></para>
    <para><filename>&rootlibexecdir;/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="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 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>