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Head First Networking by Ryan Benedetti, Al Anderson

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Chapter 8. The Domain Name System: Names to Numbers

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You probably don’t even think about it, but when you type a URL into a browser, how does your computer find an IP address for that server?

In this chapter you will discover the world of Internet domains. You will find out how there are 13 root servers that deal out domain name information for the entire Internet. You will also install and configure your own DNS server.

The Head First Health Club needs a website

The Head First Health Club prides itself on its ability to find the perfect class for everyone. Whether you want to learn how to swim, practice martial arts, or get your body into shape, it has just the right class.

Unfortunately, competition between the different health clubs is fierce. In a bid to attract more customers, the CEO has decided that the Head First Health Club needs to have a website.

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The CEO already has web page developers handling the actual web pages that need to go on the site, and web servers for the site itself. What you need to do is get a domain for the website.

So what’s a domain?

Hello, my domain name is...

Even if you’ve never heard of a domain name, you’ve seen and used a zillion of them; you know... google.com, yahoo.com, amazon.com, headfirstlabs.com, and maybe a few you wouldn’t want us to mention.

So what’s ...

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