Configure Static IP Address in Linux

Edit /etc/network/interfaces and replace the default DHCP configuration with the one shown beneath.

# Default DHCP configuration
auto eth0
iface eth0 inet dhcp

# Configuration for static ip
auto eth0
iface eth0 inet static
address 192.168.1.200
netmask 255.255.255.0
gateway 192.168.1.1

Then you have to restart the network interfaces for the new settings to take effect.

$ sudo /etc/init.d/networking restart