Howto Set Ubuntu Server IP

Configuring Ubuntu Server IP have never been any easier. Just edit the /etc/network/interfaces file using any text editor on the server. By default, you should have nano and vi in your Ubuntu Server.

The simplest and straight forward text editor is nano. So, use this command:

$ sudo nano /etc/network/interfaces

you should see the default file content like this:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp

This is the default network settings on your Ubuntu Server where it use DHCP. So, to set it as static IP. Let say, we wanna setting like this:

=> Host IP address: 10.1.1.100
=> Netmask: 255.255.255.0
=> Network ID: 10.1.1.0
=> Broadcast IP: 10.1.1.255
=> Gateway/Router IP: 10.1.1.254
=> DNS Server: 10.1.1.254

You should change the file like this:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static
        address 10.1.1.100
        netmask 255.255.255.0
        network 10.1.1.0
        broadcast 10.1.1.255
        gateway 10.1.1.254

To set the DNS server, edit the /etc/resolv.conf file using this command:

$ sudo nano /etc/resolv.conf

add the line for nameserver like this:

search myisp.com
nameserver 10.1.1.254
nameserver 208.67.222.222
nameserver 208.67.220.220

That's all... enjoy!!