mirror of
https://github.com/systemd/systemd.git
synced 2024-12-20 07:33:41 +08:00
100 lines
4.6 KiB
XML
100 lines
4.6 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
|
|
|
|
<refentry id="systemd-networkd.service" conditional='ENABLE_NETWORKD'>
|
|
|
|
<refentryinfo>
|
|
<title>systemd-networkd.service</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>systemd-networkd.service</refentrytitle>
|
|
<manvolnum>8</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>systemd-networkd.service</refname>
|
|
<refname>systemd-networkd</refname>
|
|
<refpurpose>Network manager</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><filename>systemd-networkd.service</filename></para>
|
|
<para><filename>/usr/lib/systemd/systemd-networkd</filename></para>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para><command>systemd-networkd</command> is a system service that
|
|
manages networks. It detects and configures network devices as
|
|
they appear, as well as creating virtual network devices.</para>
|
|
|
|
<para>To configure low-level link settings independently of
|
|
networks, see
|
|
<citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
|
|
|
|
<para><command>systemd-networkd</command> will create network devices based
|
|
on the configuration in
|
|
<citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
|
files, respecting the [Match] sections in those files.</para>
|
|
|
|
<para><command>systemd-networkd</command> will manage network addresses and
|
|
routes for any link for which it finds a <filename>.network</filename> file
|
|
with an appropriate [Match] section, see
|
|
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
|
|
For those links, it will flush existing network addresses and routes when
|
|
bringing up the device. Any links not matched by one of the
|
|
<filename>.network</filename> files will be ignored. It is also possible to
|
|
explicitly tell <filename>systemd-networkd</filename> to ignore a link by
|
|
using <varname>Unmanaged=yes</varname> option, see
|
|
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
|
|
</para>
|
|
|
|
<para>When <filename>systemd-networkd</filename> exits, it generally leaves
|
|
existing network devices and configuration intact. This makes it possible to
|
|
transition from the initramfs and to restart the service without breaking
|
|
connectivity. This also means that when configuration is updated and
|
|
<filename>systemd-networkd</filename> is restarted, netdev interfaces for
|
|
which configuration was removed will not be dropped, and may need to be
|
|
cleaned up manually.</para>
|
|
|
|
<para><command>systemd-networkd</command> may be introspected and controlled at runtime using
|
|
<citerefentry><refentrytitle>networkctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1><title>Configuration Files</title>
|
|
<para>The configuration files are read from the files located in the
|
|
system network directory <filename>/usr/lib/systemd/network</filename>,
|
|
the volatile runtime network directory
|
|
<filename>/run/systemd/network</filename> and the local administration
|
|
network directory <filename>/etc/systemd/network</filename>.</para>
|
|
|
|
<para>Networks are configured in <filename>.network</filename>
|
|
files, see
|
|
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
and virtual network devices are configured in
|
|
<filename>.netdev</filename> files, see
|
|
<citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>networkctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-networkd-wait-online.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-network-generator.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|