man/resolved.conf.xml

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   3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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   9   Copyright 2014 Tom Gundersen
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  24
  25 <refentry id="resolved.conf" conditional='ENABLE_RESOLVED'>
  26         <refentryinfo>
  27                 <title>resolved.conf</title>
  28                 <productname>systemd</productname>
  29
  30                 <authorgroup>
  31                         <author>
  32                                 <contrib>Developer</contrib>
  33                                 <firstname>Tom</firstname>
  34                                 <surname>Gundersen</surname>
  35                                 <email>teg@jklm.no</email>
  36                         </author>
  37                 </authorgroup>
  38         </refentryinfo>
  39
  40         <refmeta>
  41                 <refentrytitle>resolved.conf</refentrytitle>
  42                 <manvolnum>5</manvolnum>
  43         </refmeta>
  44
  45         <refnamediv>
  46                 <refname>resolved.conf</refname>
  47                 <refpurpose>Network Name Resolution configuration file</refpurpose>
  48         </refnamediv>
  49
  50         <refsynopsisdiv>
  51                 <para><filename>/etc/systemd/resolved.conf</filename></para>
  52         </refsynopsisdiv>
  53
  54         <refsect1>
  55                 <title>Description</title>
  56
  57                 <para>When starting, systemd-resolved will read the
  58                 configuration file <filename>resolved.conf</filename>.
  59                 This configuration file controls local DNS name
  60                 resolving.</para>
  61
  62         </refsect1>
  63
  64         <refsect1>
  65                 <title>Options</title>
  66
  67                 <variablelist class='network-directives'>
  68
  69                         <varlistentry>
  70                                 <term><varname>DNS=</varname></term>
  71                                 <listitem><para>A space separated list
  72                                 of IPv4 and IPv6 addresses to be used
  73                                 as system DNS servers. DNS requests
  74                                 are sent to one of the listed DNS
  75                                 servers in parallel to any
  76                                 per-interface DNS servers acquired
  77                                 from
  78                                 <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. For
  79                                 compatibility reasons, if set to the
  80                                 empty list the DNS servers listed in
  81                                 <filename>/etc/resolv.conf</filename>
  82                                 are used, if any are
  83                                 configured there. This setting
  84                                 defaults to the empty
  85                                 list.</para></listitem>
  86                         </varlistentry>
  87
  88                         <varlistentry>
  89                                 <term><varname>FallbackDNS=</varname></term>
  90                                 <listitem><para>A space separated list
  91                                 of IPv4 and IPv6 addresses to be used
  92                                 as the fallback DNS servers. Any
  93                                 per-interface DNS servers obtained
  94                                 from
  95                                 <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  96                                 take precedence over this setting, as
  97                                 do any servers set via
  98                                 <varname>DNS=</varname> above or
  99                                 <filename>/etc/resolv.conf</filename>. This
 100                                 setting is hence only used if no other
 101                                 DNS server information is known. If
 102                                 this option is not given, a
 103                                 compiled-in list of DNS servers is
 104                                 used instead.</para></listitem>
 105                         </varlistentry>
 106
 107                         <varlistentry>
 108                                 <term><varname>LLMNR=</varname></term>
 109                                 <listitem><para>Takes a boolean
 110                                 argument or
 111                                 <literal>resolve</literal>. Controls
 112                                 Link-Local Multicast Name Resolution support (<ulink
 113                                 url="https://tools.ietf.org/html/rfc4795">RFC
 114                                 4794</ulink>) on the local host. If
 115                                 true enables full LLMNR responder and
 116                                 resolver support. If false disable
 117                                 both. If set to
 118                                 <literal>resolve</literal> only
 119                                 resolving support is enabled, but
 120                                 responding is disabled. Note that
 121                                 <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 122                                 also maintains per-interface LLMNR
 123                                 settings. LLMNR will be enabled on an
 124                                 interface only if the per-interface
 125                                 and the global setting is
 126                                 on.</para></listitem>
 127                         </varlistentry>
 128
 129                 </variablelist>
 130         </refsect1>
 131
 132         <refsect1>
 133                   <title>See Also</title>
 134                   <para>
 135                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 136                         <citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 137                         <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 138                         <citerefentry><refentrytitle>resolv.conf</refentrytitle><manvolnum>4</manvolnum></citerefentry>
 139                   </para>
 140         </refsect1>
 141
 142 </refentry>