Static IP on Linux

Follow the steps in the link below till 2. and in the third step do as..

http://kernel2kernel.blogspot.com/2007/03/
ethernet-device-setup-in-linuxexubuntu.html

step 3:

bash$cd /etc/network
bash$sudo vi interfaces
and type down as

auto eth0
iface eth0 inet static
address 192.168.X.X(The IP you want to setup)
netmask 255.255.255.0
gateway 192.168.1.1

save and exit

and
bash$sudo /etc/init.d/networking restart
bash$sudo dhclient eth0