DNS namespace

DNS Namespace is all domains and subdomains within the Domain Name System (DNS).

What is DNS namespace?

All domains and subdomains within the Domain Name System (DNS). DNS uses a namespace that is hierarchical in structure and is stored as a distributed database on servers called name servers.

The term “namespace” can have two meanings:

  • The abstract space of fully qualified domain names (FQDNs) that are used to identify hosts on the Internet or on a private corporate TCP/IP internetwork
  • The physical space of DNS database files (zone files) that exist on name servers and that actually define or contain the abstract DNS namespace

Active Directory in Microsoft Windows 2000 requires that a DNS namespace be configured in a domain-based implementation of Windows 2000 in an enterprise.