Ubuntu

Configuring a network interface

Ubuntu has GUI management of networking (settings -> network settings) and manually restarting /etc/init.d/networking is now deprecated, but still works in 12.04. The system overwrites some of the manual settings, for example /etc/resolv.conf, at reboot. One way around this is to put it all in the /etc/network/interfaces file.

You'll need to edit  /etc/network/interfaces 

Note:  The addresses below are provided as an example only.  ECE-IT will provide the appropriate addresses when a formal request has been received.

Open a terminal window and proceed with the following: 

 sudo vi /etc/network/interfaces

## To configure a dynamic IP address
auto eth0
iface eth0 inet dhcp

## Or configure a static IP

auto lo

iface lo inet loopback

auto eth0

iface eth0 inet static

address 192.168.1.14

gateway 192.168.1.1

netmask 255.255.255.0

network 192.168.1.0

broadcast 192.168.1.255
nameserver 128.83.185.40 128.83.185.41

search ece.utexas.edu

don't forget

sudo apt-get remove dhcp-client

and

vi /etc/NetworkManager/NetworkManager.conf

and make sure the “managed” line contains:

managed=false

Restart the networking service

sudo /etc/init.d/networking restart