Domain Name Server With Its Components

The domain name system dns is the system which performs an extremely important function. So if the dns server is unable to find any ip associated with the domain name sent in the query then it ll ask the other servers connected to resolve the ip address for the requested domain. If the domain name is in the local zone the default name server can handle the request.

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If it is configured to handle recursive queries like a resolving name server it will find out the answer and return it.

Domain name server with its components. Access to each computer in a given group is controlled by the same server. Every domain has a domain name server handling its requests and there is a person or it team maintaining the records in that dns server s database. This name server is the first place that the host looks in order to resolve a domain name into an ip address. Before the domain name structure was developed computer names and ip addresses were mapped using a flat list and stored in a simple.

It cannot be neglected that human find it easy to remember names rather than numerical ip addresses. Otherwise the default name server queries one of the root servers. It associates various information with domain names assigned to each of the participating entities. A domain name server contains two primary components namely nameserver and resolver.

To understand the domain name structure you really need to understand the problem the structure was meant to solve. Every domain that a name server knows about is stored in a zone file. In case a nameserver doesn t find the requested information it contacts another nameserver immediately. No other database on the planet gets as many requests as dns servers and they handle all those queries while also processing data updates from millions of people every day.

A name server contains address information about other computers on the network. 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. What is dns and its components. The domain name structure and domain name system were developed to organise and find the ip addresses of computers on large distributed networks.

It is however not required for every server to connect to other server. Most requests coming to the average name server are not something that the server will have zone files for. Nameserver performs the important task of looking up the names. A distributed database is an archive of information about the computers in a network.

Most prominently it translates more readily memorized domain names to the numerical ip addresses needed for locating and. The root server responds with a list of name servers that contain data for the. The primary task of dns is to allocate names to different ip addresses. A domain is a logical group of computers in a large network.