What is a “Domain Name Server” (DNS)?
An important component of the World Wide Web (WWW) is the Domain Name Server (DNS). This is like a big electronic telephone directory of Web site addresses that is referred to by the Internet infrastructure. People find it easier to remember a Web site address (e.g. billyfire.com) rather than a string of numbers (or IP address, for example 72.18.141.130). The DNS server translates your Web site address into its IP address so that you can connect to it and view its contents. If you were to decide to host with Billy Fire, the first thing we would need to do is to change the Domain Name Servers to our domain name servers. This information then begins propagating through the Internet so that within a few hours all domain name servers are updated and anyone typing your domain name (e.g. your-domain-name.com) into a browser would be “served” your site from the Billy Fire server.
Dns means domain name server. It is the smartest way to find a website .You cannot remember many website ip address at same time.So domain name is used for remembering the website.For example 74.125.239.17 is one ip address of Google.com.It is very difficult to remember always.So you can use domain name to view the particular website. the conversion of domain name to ip address is done by DNS .If you want to find domain to ip,ip to domain,dns record details you can visit this site WhoisXY.com here you can get all the information
