On Fri, Jul 13, 2018 at 11:29:42AM -0500, Kent West wrote: > westk@westkent:~$ cat /etc/network/interfaces > > # This file describes the network interfaces available on your system > > # and how to activate them. For more information, see interfaces(5). > > source /etc/network/interfaces.d/* > > # The loopback network interface > > auto lo > > iface lo inet loopback
Well, if the interface isn't being configured in /e/n/i then either it's using NetworkManager or it's using systemd-networkd. Or something that you set up by hand.