Query the status of network links. Manage the network configuration using
systemd-networkd. More information: https://www.freedesktop.org/software/systemd/man/networkctl.html.
networkctl list
networkctl status
networkctl up {{interface1 interface2 ...}}
networkctl down {{interface1 interface2 ...}}
networkctl renew {{interface1 interface2 ...}}
networkctl reload
networkctl reload first):networkctl reconfigure {{interface1 interface2 ...}}