130 lines
5.0 KiB
XML
130 lines
5.0 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2014 Tom Gundersen
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="resolved.conf" conditional='ENABLE_RESOLVED'
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>resolved.conf</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Tom</firstname>
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<surname>Gundersen</surname>
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<email>teg@jklm.no</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>resolved.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>resolved.conf</refname>
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<refname>resolved.conf.d</refname>
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<refpurpose>Network Name Resolution configuration files</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/systemd/resolved.conf</filename></para>
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<para><filename>/etc/systemd/resolved.conf.d/*.conf</filename></para>
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<para><filename>/run/systemd/resolved.conf.d/*.conf</filename></para>
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<para><filename>/usr/lib/systemd/resolved.conf.d/*.conf</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>These configuration files control local DNS and LLMNR
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name resolution.</para>
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</refsect1>
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<xi:include href="standard-conf.xml" xpointer="main-conf" />
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<refsect1>
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<title>Options</title>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>DNS=</varname></term>
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<listitem><para>A space-separated list of IPv4 and IPv6
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addresses to be used as system DNS servers. DNS requests are
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sent to one of the listed DNS servers in parallel to any
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per-interface DNS servers acquired from
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<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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For compatibility reasons, if set to the empty list, the DNS
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servers listed in <filename>/etc/resolv.conf</filename> are
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used, if any are configured there. This setting defaults to
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the empty list.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>FallbackDNS=</varname></term>
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<listitem><para>A space-separated list of IPv4 and IPv6
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addresses to be used as the fallback DNS servers. Any
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per-interface DNS servers obtained from
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<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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take precedence over this setting, as do any servers set via
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<varname>DNS=</varname> above or
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<filename>/etc/resolv.conf</filename>. This setting is hence
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only used if no other DNS server information is known. If this
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option is not given, a compiled-in list of DNS servers is used
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instead.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>LLMNR=</varname></term>
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<listitem><para>Takes a boolean argument or
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<literal>resolve</literal>. Controls Link-Local Multicast Name
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Resolution support (<ulink
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url="https://tools.ietf.org/html/rfc4795">RFC 4794</ulink>) on
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the local host. If true, enables full LLMNR responder and
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resolver support. If false, disables both. If set to
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<literal>resolve</literal>, only resolution support is enabled,
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but responding is disabled. Note that
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<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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also maintains per-interface LLMNR settings. LLMNR will be
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enabled on an interface only if the per-interface and the
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global setting is on.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>resolv.conf</refentrytitle><manvolnum>4</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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