NIC Configuration in Debian

# 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 83.221.155.140
        netmask 255.255.255.0
        gateway 83.221.155.254


iface eth0 inet dhcp