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Anywhere Computing with Laptops: Making Mobile Easier by Harold Davis

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DNS

You might have had to enter settings for a DNS server or set your access point router to obtain a DNS server address automatically. In either case, you are probably curious about what DNS actually is.

DNS is short for Domain Name System (sometimes called Domain Name Service). DNS translates more or less alphabetic domain names into IP addresses. Because domain names are in English (or some other language), they're easier to remember than the tuplets that make up an IP address. For example, it is really easier to remember http://www.google.com than it is to remember Google's IP address, 66.102.7.99, isn't it?

Because the Internet is really based on IP addresses, every time you use a domain name, a DNS server must translate the name into the ...

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