Chapter 4: Using DNS
In This Chapter
Discovering the basics of DNS
Exploring zones
Examining resource records
Configuring a DNS server
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 207.171.166.252 instead of from www.amazon.com, you’d sell your used furniture at 66.211.160.87 instead of on www.ebay.com, and you’d search the Web at 74.125.19.147 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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