DNS Database

Notice that the structure of the DNS database is similar to the structure of a UNIX filesystem.

  • In the DNS database, the root node is written as a dot (.). In the Unix filesystem, the root is written as a slash (/).

Each partition of the database is known as a zone (a.k.a namespace)

Each subtree represents a partition of the overall database— a directory in the Unix filesystem, or a domain in the Domain Name System.

  • each domain can be further partitioned into subdomains

In a filesystem, directories contain files and subdirectories. Likewise, domains can contain both hosts and subdomains.

A full domain name identifies its position in the database, similar to how an absolute path specifies its place in the filesystem.


Children
  1. DNS Zone

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