Para eth0 com dhcp:
# The loopback network interface
auto lo eth0
iface lo inet loopback
# The primary network interface
iface eth0 inet dhcp
Para eth0 static:
# The loopback network interface
auto lo eth0
iface lo inet loopback
# The primary network interface
iface eth0 inet static
address 192.168.10.33
netmask 255.255.255.0
broadcast 192.168.10.255
network 192.168.10.0
gateway 192.168.10.254
dns-nameservers 192.168.10.254
link: link