mirror of
https://github.com/morgan9e/systemd
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100 lines
4.1 KiB
XML
100 lines
4.1 KiB
XML
<?xml version='1.0'?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
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<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<refentry id="systemd.dns-delegate"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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conditional='ENABLE_RESOLVE'>
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<refentryinfo>
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<title>systemd.dns-delegate</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd.dns-delegate</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd.dns-delegate</refname>
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<refpurpose>DNS Server Delegation Configuration</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><simplelist>
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<member><filename>/etc/systemd/dns-delegate.d/*.dns-delegate</filename></member>
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<member><filename>/run/systemd/dns-delegate.d/*.dns-delegate</filename></member>
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<member><filename>/usr/local/lib/systemd/dns-delegate.d/*.dns-delegate</filename></member>
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<member><filename>/usr/lib/systemd/dns-delegate.d/*.dns-delegate</filename></member>
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</simplelist></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><filename>*.dns-delegate</filename> files may be used to delegate DNS lookups in specific domains to
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specific DNS servers. These files are read by
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<citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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Each such file defines a combination of one or more DNS servers and one or more DNS domains. Each such
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definition synthesizes a DNS lookup scope that ensure lookups below the specified domains are sent to the
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specified DNS servers, possibly in addition to any per-interface scopes and the global scope that
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<command>systemd-resolved</command> maintains anyway.</para>
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</refsect1>
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<refsect1>
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<title>[Delegate] Section 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>
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<para>Takes one or more DNS server specifications, in the same syntax as the option of the same name in <citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
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<xi:include href="version-info.xml" xpointer="v258"/>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Domains=</varname></term>
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<listitem>
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<para>Takes one or more domain name specifications, in the same syntax as the option of the same name in <citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
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<xi:include href="version-info.xml" xpointer="v258"/>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>DefaultRoute=</varname></term>
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<listitem>
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<para>Takes a boolean value, defaults to off. Controls whether this DNS server is a candidate for
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looking up records for which no better route exists.</para>
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<xi:include href="version-info.xml" xpointer="v258"/>
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</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>Examples</title>
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<example>
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<programlisting># /etc/systemd/dns-delegate.d/foobar.dns-delegate
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[Delegate]
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DNS=203.0.113.47
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Domains=foobar.com</programlisting>
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<para>This ensures lookups of <literal>foobar.com</literal> and any domains below it are directed to
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DNS server 203.0.113.47.</para>
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</example>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para><simplelist type="inline">
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<member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
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<member><citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
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<member><citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry></member>
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<member><citerefentry><refentrytitle>resolvectl</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
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</simplelist></para>
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</refsect1>
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</refentry>
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