80 Domain Name System Namespaces New

A domain can further divided in to sub domains.

Domain name system namespaces. Domains can be referred to by level top level second level see below or by reference see subdomain. The dns hierarchical inverted tree structure is called the dns namespace. This brings us into one of the most foundational concepts in the domain name system.

The dns namespace tree has a unique root and large number of sub trees. In simple terms a domain name system dns is a collection of databases that translate hostnames to ip addresses. Each name in a directory uniquely identifies one file or subdirectory.

This role prevents naming conflicts because such changes can be performed only if the domain naming master is online. That is different meanings cannot share the same name in the same namespace. Domain naming master a domain controller that is in charge of adding new domains and removing unneeded ones from the forest.

The root zone is the top level zone in the dns domain namespace. It is responsible for any changes to the domain namespace. As a rule names in a namespace cannot have more than one meaning.

The domain name system dns is a hierarchical and decentralized naming system for computers services or other resources connected to the internet or a private network. A domain is an administrative unit with its own autonomy and authority. In an operating system an example of namespace is a directory.

Alternatively referred to as a namespace a domain namespace is a name service provided by the internet for transmission control protocol networks internet protocol dns is broken up into domains a logical organization of computers that exist in a larger network. Below is an example of the hierarchy of domain naming on the internet. Most prominently it translates more readily memorized domain names to the numerical ip addresses needed for locating and.