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<span style="float:right">systemd 221</span><hr><div class="refentry"><a name="systemd-networkd.service"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd-networkd.service, systemd-networkd — Network manager</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename">systemd-networkd.service</code></p><p><code class="filename">/usr/lib/systemd/systemd-networkd</code></p></div><div class="refsect1"><a name="idm47273603699056"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><span class="command"><strong>systemd-networkd</strong></span> is a system service that
manages networks. It detects and configures network devices as
they appear, as well as creating virtual network devices.</p><p>To configure low-level link settings independently of
networks, see
<a href="systemd.link.html"><span class="citerefentry"><span class="refentrytitle">systemd.link</span>(5)</span></a>.</p><p>Network configurations applied before networkd is started
are not removed, and static configuration applied by networkd is
not removed when networkd exits. Dynamic configuration applied by
networkd may also optionally be left in place on shutdown. This
ensures restarting networkd does not cut the network connection,
and, in particular, that it is safe to transition between the
initrd and the real root, and back.</p></div><div class="refsect1"><a name="idm47273607344544"></a><h2 id="Configuration Files">Configuration Files<a class="headerlink" title="Permalink to this headline" href="#Configuration%20Files">¶</a></h2><p>The configuration files are read from the files located in the
system network directory <code class="filename">/usr/lib/systemd/network</code>,
the volatile runtime network directory
<code class="filename">/run/systemd/network</code> and the local administration
network directory <code class="filename">/etc/systemd/network</code>.</p><p>Networks are configured in <code class="filename">.network</code>
files, see
<a href="systemd.network.html"><span class="citerefentry"><span class="refentrytitle">systemd.network</span>(5)</span></a>,
and virtual network devices are configured in
<code class="filename">.netdev</code> files, see
<a href="systemd.netdev.html"><span class="citerefentry"><span class="refentrytitle">systemd.netdev</span>(5)</span></a>.
</p></div><div class="refsect1"><a name="idm47273602669600"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
<a href="systemd.link.html"><span class="citerefentry"><span class="refentrytitle">systemd.link</span>(5)</span></a>,
<a href="systemd.network.html"><span class="citerefentry"><span class="refentrytitle">systemd.network</span>(5)</span></a>,
<a href="systemd.netdev.html"><span class="citerefentry"><span class="refentrytitle">systemd.netdev</span>(5)</span></a>,
<a href="systemd-networkd-wait-online.service.html"><span class="citerefentry"><span class="refentrytitle">systemd-networkd-wait-online.service</span>(8)</span></a>
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