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Networking All-in-One For Dummies by Doug Lowe

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Chapter 5

Using DNS

In This Chapter

arrow Discovering the basics of DNS

arrow Exploring zones

arrow Examining resource records

arrow Configuring a DNS server

arrow Setting up a DNS client

Domain Name Server — DNS — is the TCP/IP facility that lets you use names rather than numbers to refer to host computers. Without DNS, you’d buy books from 176.32.103.205 instead of from www.amazon.com, you’d sell your used furniture at 66.135.216.190 instead of on www.ebay.com, and you’d search the web at 173.194.43.64 instead of at www.google.com.

Understanding how DNS works and how to set up a DNS server is crucial to setting up and administering a Transmission Control Protocol/Internet Protocol (TCP/IP) network. (For more on that, see Chapter 1 of this minibook.) This chapter introduces you to the basics of DNS, including how the DNS naming system works and how to set up a DNS server.

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