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Tuesday, January 5, 2010

What is DNS?

DNS(Domain Name System)
DNS is a database that translate a fully qualified domain name into a IP address. In a network computers are identified by their respective IP address, which is of the form 201.154.12.23 so rembering the ip of each and every computer that we use is very tedious and difficult. But if each computer is given a name then it is easier for us to remember hence we are more comfortable remembering www.google.com rather than its complex IP address. Hence DNS does the trick for us it converts the domain name to a IP address and we are connected to the remote computer. so each organization must have a DNS servers which keep records of all the ipaddress inside of its network and also it should search on behalf of the organization to query the respective ipaddress.

1 comment:

  1. Good information.

    DNS means Domain Name System which helps to transfer IP address to domain name and domain name to IP addresses.It plays vital role in internet technology.For example,if you provide domain name like Google.com it convert the domain name into particular IP address.If you provide the IP address like 74.125.239.9 the DNS search for the particular website and display on your browser.DNS consist of many resource records.Some of them are A record,CNAME record,DNAME record etc.,
    You can check DNS query using the site WhoisXY.com .

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