Managing DNS zones and resource records
The DNS service enables you to resolve names to other information. Most DNS usage resolves a hostname to its IP (IPv4 or IPv6) addresses. But there are other resolutions, such as determining email servers or for anti-spam, that also rely on DNS.
DNS servers hold zones. A DNS zone is a container for a set of RRs related to a specific DNS domain. When you enter www.packt.com, your browser uses DNS to resolve that website name into an IP address and contacts the server at that IP address. If you use an email client to send mail, for example, to DoctorDNS@Gmail.Com, the email client uses DNS to discover an email server to which to send the mail.
Before you can use DNS to hold a RR, you must first create a DNS forward lookup zone. A zone is one part of the global (or internal) DNS namespace. You can configure different zones to hold different parts of your namespace. In Chapter 6, Managing Active Directory, you added a child domain to the...
