Datei, die bearbeitet werden muss: /etc/network/interfaces
zum Beispiel so:
# nano /etc/network/interfaces
auto eth0 iface eth0 inet dhcp
# 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
allow-hotplug eth0
iface eth0 inet static
address 192.168.178.10
netmask 255.255.255.0
network 192.168.178.0
broadcast 192.168.178.255
gateway 192.168.178.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 192.168.178.1
dns-search mylan.local