Linux: Changing network IP

sudo nano /etc/network/interfaces

auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1

sudo /etc/init.d/networking restart

Setting static IP on Ubuntu Server

1. Go to network interface:

sudo vi /etc/network/interfaces

2. Under the line

auto eth0iface eth0 inet dhcp



Customize the above to the following:



auto eth0iface eth0 inet static 

address 192.168.1.100 

netmask 255.255.255.0 

network 192.168.1.0 

broadcast 192.168.1.255 

gateway 192.168.1.1

3. Update the DNS setting.

sudo vi /etc/resolv.conf

On the line ‘name server xxx.xxx.xxx.xxx’ replace the x with the IP of your name server.

4. You need to also remove the dhcp client.

sudo apt-get remove dhcp-client

5. Restart the networking components.

sudo /etc/init.d/networking restart