You have a new computer that seems to connect to the Internet but when you try to go to http://www.cnn.com you get a “Server Not Found” error. You call tech support and they tell you to try to go to http://64.236.24.20. That works. Now both you and the tech know what’s wrong with your computer’s settings. What isn’t working properly, since you can get to a site via the Internet but can’t get the domain name www.cnn.com to be recognized?