Introducing DNS Record Types
No matter where your zone information is stored, you can rest assured that it contains a variety of DNS information. Although the DNS snap-in makes it unlikely that you’ll ever need to edit these files by hand, it’s good to know exactly what data is contained there.
As stated previously, zone files consist of a number of resource records (RRs). You need to know about several types of resource records to effectively manage your DNS servers. They are discussed in the following sections.
Part of the resource record is its class. Classes define the type of network for the resource record. There are three classes: Internet, Chaosnet, and Hesoid. By far, the Internet class is the most popular. In fact, it’s doubtful that ...