# 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
# The primary network interface
allow
-hotplug eth0 
iface eth0 inet static
        address 192.168.142.64
        netmask 255.255.255.0
        gateway 192.168.142.2

domain localdomain
search localdomain
nameserver 8.8.8.8

root@linux:~
# ifconfig
eth0:
flags
=
416
3
mtu
1500
inet6 fe80::20c:29ff:fe12:4218  prefixlen
64
scopeid 0x2
0
ether 00:0c:29:12:42:18  txqueuelen
1000
(
Ethernet
)
RX packets
0
bytes
0
(
0.0
B
)
RX errors
0
dropped
0
overruns
0
frame
0
TX packets
36
bytes
2904
(
2.8
KiB
)
TX errors
0
dropped
0
overruns
0
carrier
0
collisions
0
lo:
flags
=
7
3
mtu
65536
inet
127.0
.0.1  netmask
255.0
.0.0
        inet6 ::1  prefixlen
128
scopeid 0x1
0
loop  txqueuelen
1000
(
Local Loopback
)
RX packets
0
bytes
0
(
0.0
B
)
RX errors
0
dropped
0
overruns
0
frame
0
TX packets
0
bytes
0
(
0.0
B
)
TX errors
0
dropped
0
overruns
0
carrier
0
collisions
0
root@linux:~
#