May 2021
Beginner
1056 pages
24h 50m
English
Content preview from Networking All-in-One For Dummies, 8th Edition
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Chapter 6
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 System (DNS) is the Transmission Control Protocol/Internet Protocol (TCP/IP) facility that lets you use names rather than numbers to refer to host computers. Without DNS, you’d buy books from 13.255.148.15 instead of from www.amazon.com and you’d sell your used furniture at 23.208.65.111 instead of on www.ebay.com.
Understanding how DNS works and how to set up a DNS server is crucial to setting up and administering a TCP/IP network. (For more on TCP/IP, see Chapter 2 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.
If you want to review the complete official specifications for DNS, look up RFC 1034 and 1035 at www.ietf.org/rfc/rfc1034.txt ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.