Sunday, December 5, 2010

How to set a static IP in Ubuntu

Edit /etc/network/interfaces and adjust it to your needs (in this example setup I will use the IP address 192.168.0.100):


# vi /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

# This is a list of hotpluggable network interfaces.
# They will be activated automatically by the hotplug subsystem.
mapping hotplug
script grep
map eth0

# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.0.100
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1

To restart the network
# /etc/init.d/networking restart

Reference: http://codesnippets.joyent.com/posts/show/319

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