[Linux] Change Ubuntu 14.04 from DHCP to Static IP Addredd

Use shell command

If the Ubuntu Server installer has set your server to use DHCP, you will want to change it to a static IP address so that people can actually use it.

Changing this setting without a GUI will require some text editing, but that ?s classic linux, right?

Open up the /etc/network/interfaces file

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vi /etc/network/interfaces

For the primary interface, which is usually eth0, you will see these lines:

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auto eth0
iface eth0 inet dhcp

As you can see, it ?s using DHCP right now. We are going to change dhcp to static, and then there are a number of options that should be added below it. Obviously you ?d customize this to your network.

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## The primary network interface
auto eth0
iface eth0 inet static
address xxx.xxx.xxx.xxx
netmask xxx.xxx.xxx.xxx
gateway xxx.xxx.xxx.xxx
dns-nameservers xxx.xxx.xxx.xxx

Now we will just need to restart the networking components:

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sudo /etc/init.d/networking restart