1.) Open the Network Interface with your favorite text editor
nano /etc/network/interfaces
Here is an example of what it will look like:
auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 108.210.118.56 netmask 255.255.255.224 broadcast 108.210.118.63 network 108.210.118.32 gateway 108.210.118.33
2.) Add a new line below auto eth0 with your IP, Netmask and gateway. For example,
It should look like this:
auto lo iface lo inet loopback auto eth0 auto eth0:1 iface eth0 inet static address 108.210.118.56 netmask 255.255.255.224 broadcast 108.210.118.63 network 108.210.118.32 gateway 108.210.118.33 iface eth0:1 inet static address 108.210.118.58 netmask 255.255.255.224 broadcast 108.210.118.63 network 108.210.118.32 gateway 108.210.118.33
3.) Save the file and exit the text editor. Then restart the network by running the following command:
/etc/init.d/networking restart