/etc/network/interfaces
sudo cp /etc/network/interfaces /etc/network/interfaces.old
sudo nano /etc/network/interfaces# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.0.199
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1
dns-nameserver 208.67.222.222 212.216.112.112
do /etc/init.d/networking restart