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Advanced Linux Networking by Roderick W. Smith

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Chapter 18. Administering a Domain via DNS

In order for computers to find one another by name on a TCP/IP network, the computers need some method of name resolution—that is, converting a hostname like gingko.threeroomco.com into an IP address like 192.168.78.109, or vice-versa. There are several ways of doing this, but one of the most common is to use a Domain Name System (DNS) server, also known as a name server. In fact, the instructions on basic configuration presented in Chapter 2, TCP/IP Network Configuration, describe configuring a computer to use a DNS server for name resolution. These instructions presuppose, however, that a DNS server exists that you can use. Furthermore, the Internet as a whole relies upon a distributed set of DNS servers. ...

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