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Java™ Network Programming and Distributed Computing by Michael Reilly, David Reilly

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3.3. Beyond IP Addresses: The Domain Name System

While IP addresses comprise an efficient system for network administrators, most people find memorizing them to be an impossible task. People generally find words much easier to recall than the dotted decimal format of an IP address. It is easier to remember a name such as Amazon or Sun than a set of numbers designating such a dotted decimal IP address.

3.3.1. What Is a Domain Name?

The domain name system (DNS) makes the Internet user-friendly, by associating a textual name with an IP address. Any entity, be it commercial, government, or private, can apply for a domain name, which can be used by people to locate that entity on the Internet. Simple text names, as opposed to arbitrary numbers, are ...

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