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Friday, March 16, 2007

What is Domain Name Service?

Domain Name Service (DNS) is the service used to convert human readable names of hosts to IP addresses.
The Domain Name System (DNS) is basically a large database which resides on various computers and it contains the names and IP addresses of various hosts on the internet and various domains.

DNS names are assigned through the Internet Registries by the Internet Assigned Number Authority (IANA). The domain name is a name assigned to an internet domain.

Basically we could retrieve IP addresses associated with a given hostname, Also in reverse resolve a known IP address is to lookup what the associated hostname is belonging to that IP address.

Here is some useful sites that you can use to retrieve DNS details,

http://www.dnsstuff.com/
http://www.whois.net/
http://swhois.net/
http://webtools.live2support.com/nt_dig.php