How to Set or Change the IP Address & DNS Settings on a Ubuntu Server
Many newcomers to the Linux platform find the command-line interface (CLI) a little daunting at first, but with a little bit of research and an ounce of Mr. Common Sense's inspiration, it's not that hard to learn the basics.
In this article I'll be discussing the common task of changing the IP address and DNS settings on your server. Most of the time you'll want to use a static IP for your server and it's best to do this during installation, but if you need to move your server to a different location or change its IP settings for any other reason, here are the simple steps.
1. Open up the Network Interfaces file
To open the file using the vi text editor, type sudo vi /etc/network/interfaces and press ENTER. You'll then be prompted for your admin password. Enter this, and then vi will open up with your current IP settings. It might look something like this:
2. Change DNS Settings
3. Restart Networking for Changes to Take Effect
Paul Freeman-Powell is a technology, software and hardware enthusiast. He founded and owns caeus.com Ltd. and works as a web developer, IT consultant and computer repair technician. In his spare time, he speaks French and Spanish fluently and is also a keen drummer and photographer (but not at the same time). His personal web site can be found at www.paulfp.net.
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