Domain Name System In Networking
Name to address resolution the host request the dns name server to resolve the domain name.
Domain name system in networking. Dns which stands for domain name system is used as the medium to translate domain names to their respective ip addresses when a client initiates a request query. In simple terms a domain name system dns is a collection of databases that translate hostnames to ip addresses. 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. These root name servers are maintained mostly by the internet network information center internic and by u s.
It associates various information with domain names assigned to each of the participating entities. Domain name system dns is one of the industry standard suite of protocols that comprise tcp ip and together the dns client and dns server provide computer name to ip address mapping name resolution services to computers and users. When the internet was small mapping was done by using hosts txt file. Domains and domain names dns is a name service that provides a standardized system for providing names to identify tcp ip hosts as well as a way to look up the ip address of a host given the host s dns name.
Dns has some protocols that allow the client and servers to communicate with each other. Military agencies because the internet evolved from the. The dns has a distributed database that resides on multiple machines on the internet. A domain name is an identification label that defines a realm of administrative autonomy authority or control in the internet based on the domain name system dns.
The domain name system dns is a naming database in which internet domain names are located and translated into internet protocol addresses. And the name server returns the ip address corresponding to that domain name to the host so that the host can future connect to that ip address. The most important name servers on the internet are the dozen or so root name servers which are responsible for maintaining the infrastructure of the domain name system. Domain names are used in various networking contexts and application specific naming and addressing purposes.
Dns stores the database of all.