Domain Name System Namespace

Your public hostname aka fqdn fully qualified domain name can be a part of a domain so it would be the leftmost part ex.

Domain name system namespace. As a rule names in a namespace cannot have more than one meaning. Although a single namespace server is shown in the previous figure a domain based namespace can be hosted on multiple namespace servers to increase the availability of the namespace. Alex aug 6 13 at 9 03.

In this framework the naming system is called the domain namespace and is structured similarly to a directory tree on a disk drive. Each name in a directory uniquely identifies one file or subdirectory. The internet maintains two principal namespaces the domain name hierarchyand the internet protocol ip address spaces.

That is different meanings cannot share the same name in the same namespace. In an operating system an example of namespace is a directory. Below is an example of the hierarchy of domain naming on the internet.

Dns is broken up into domains a logical organization of computers that exist in a larger network. In this system the domain namespace begins at the root which is unnamed and is identified by. Internet name serversand a communication protocolimplement the domain name system.

Each domain name is made up of a number of elements called labels separated by a dot for example. Alternatively referred to as a namespace a domain namespace is a name service provided by the internet for transmission control protocol networks internet protocol tcp ip. This effectively removes the dfs root server as a single point of failure.

The domain name system maintains the domain name hierarchy and provides translation services between it and the address spaces. The domain name system works in a hierarchical model with the right most elements classed as the top level domain or tld followed by the second element which is classed as the second level domain. The hierarchical system used by dns is a more flexible system that still guarantees a unique name.