This guide will show you how you can setup a Static IP Address (On your internal network) and DNS servers on Ubuntu Desktop using the Network Configuration Manager
In order to follow this tutorial, you will need the following
Changing your IP Address
The first thing we will need to do to change your internal IP address is to open up the network connections manager. You can do this from the top right where there will either be an up and down arrow or the wireless icon. You can then click Edit Connections....
You should then click on the network you wish to manage and then click the edit button.
In the new window, go to the IPv4 Settings tab and change the method to manual.
After clicking Add, You should now be able to set the Address, Netmask, Gateway and DNS Servers to those of your choosing. Make sure these are appropriate for your current network setup.
After this, you should click Save and close all remaining windows. For these settings to take effect, you will need to reconnect the adapter. To do this, go back to the menu in the top corer and click on the adapter you have configured.
You should now see this notification
If you would like to see your current connection information, you can find this through the same menu and by clicking Connection Information. Here you can see that your settings have been applied successfully.
If for any reason this didnt work, try a reboot!