Debian9 Network Settings
What is enp3s0?
Now the name of the Internet has changed. For example, eth0,eth2... -> enp0s25,enp3s0.
You can confirm the name with the ip command.
$ip a (medium short) 2: enp3s0: mtu 1500 qdisc pfifo_fast (medium short)
The name of the network in "/ etc/network/interfaces" should be the same.
$less / etc/network/interfaces allow-hotplug enp3s0iface enp3s0 inet static resolveconf package
The resolvconf package automatically updates resolv.conf. You can install it with the apt-get command.
reference
Chapter 5, Chapter 5, settings, settings and settings.
