xan@server:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto enp1s0
iface enp1s0 inet static
address 192.168.0.1
netmask 255.255.255.0
gateway 192.168.0.2
xan@server:~$ ifconfig
enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.50 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::227:eff:fe05:c9eb prefixlen 64 scopeid 0x20<link>
inet6 fd2e:36e:4e4a:1:227:eff:fe05:c9eb prefixlen 64 scopeid 0x0<global>
ether 00:27:0e:05:c9:eb txqueuelen 1000 (Ethernet)
RX packets 213164 bytes 69748780 (69.7 MB)
RX errors 0 dropped 62 overruns 0 frame 0
TX packets 131383 bytes 130277316 (130.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 1156 bytes 118530 (118.5 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1156 bytes 118530 (118.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0