40 Dns Domain Name Hierarchy Update

The dns tree has a single domain at the top of the structure called the root domain.

Dns domain name hierarchy. It associates various information with domain names assigned to each of the participating entities. Below the root domain are the top level domains that divide the dns hierarchy into segments. The dns hierarchy is comprised of the following elements.

Dns uses domain names to form the hierarchy. Each domain or sub domain has one or more authoritative dns servers that publish information about that domain and the name servers of any domains beneath it. Saturday 19 may 2018 15 41 17 mdt by inetdaemon.

The figure consists of the root directory which is represented as a dot and two top level domain hierarchies one organizational and one geographical. 3 second level domains. 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.

The dns hierarchical inverted tree structure is called the dns namespace. To allow computers to properly recognize a fully qualified domain name dots are placed between each part of the name. The dns hierarchy is comprised of the following five elements.

The root name server is the server for the root zone. Dns hierarchy and the internet the domain hierarchy shown in the following figure is a leaf of the huge dns namespace supported on the global internet. A period or dot is the designation for the root domain.

A domain is a subtree of the dns name space. The dns namespace tree has a unique root and large number of sub trees. A fully qualified domain name fqdn is a domain name that is completely specified with all labels in the hierarchy of the dns having no parts omitted.