For example, it sets the hostname or configures the loopback network device.
=== Apply configuration changes ===
After editing the above files, changes are applied after reboot or by restarting <code>systemd-networkd.service</code>:<syntaxhighlight lang="bash">
root@imx6qdlxelk:~# systemctl restart systemd-networkd.service
</syntaxhighlight>