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Chapter 1. ✓ Start Here > How Web Servers Work

How Web Servers Work

Web servers are at the heart of the Web, and when you build web pages, you're going to spend time with servers. So you should get to know one before you visit. Web servers can be any kind of computer. They can be Windows-based PCs, Macintoshes, or computers that run the Unix operating system, or a popular variant of Unix called Linux. These servers run software called web server software—the software that speaks HTTP.

Every server on the Web has its own unique number, called an IP address, such as 130.94.155.164. There's no way for human beings to remember every single number of every single website, so the server also has a domain associated with it, such as gralla.com. When you type in the address of the website, special servers on the Internet called DNS servers translate that address into an IP address, and your web browser goes to the right location.


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