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How DNS Zone File Works

Page 6: Structure of DNS Zone File

From previous chapter of DNS Zone File tutorial, we mentioned that:

  • Each domain in a Domain Name Server has it’s own record file. This file is usually called DNS Zone File.
  • The record file of a domain contains some records. Each record is usually called Resource Record, or RR for short.

A DNS Zone File can have a lot of different Resource Records. However the following four Resource Records are most commonly used in a DNS Zone File:

DNS zone file structure

For most domain names, the above four types of Resource Records (DNS SOA Record, DNS NS Record, DNS A Record and DNS MX Record) are usually enough for DNS configuration. We will discuss the four Resource Records one by one in coming chapters of this DNS Zone File tutorial series.

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