What is DNS?
The Domain Name System or Domain Name Server (DNS) is a system that stores information associated with domain names in a distributed database on networks, such as the Internet. The domain name system (Domain Name Server) associates many types of information with domain names, but most importantly, it provides the IP address associated with the domain name. It also lists mail exchange servers accepting e-mail for each domain. In providing a worldwide keyword-based redirection service, DNS is an essential component of contemporary Internet use. DNS is useful for several reasons. Most well known, the DNS makes it possible to attach hard-to-remember IP addresses (such as 207.50.241.80) to easy-to-remember domain names (such as “pmc-internet.com”). Humans take advantage of this when they recite URLs and e-mail addresses. Less recognized, the domain name system makes it possible for people to assign authoritative names, without needing to communicate with a central registrar each time. You w
The Domain Name Server or DNS translate the human-readable domain name into machine-readable IP adress. It can be considered something similar to a phone book. When you move from one location to another, your name stays the same, but your phone number changes. In order to point your name to the new phone number, you must contact the telephone service provider, so that they assign you the new phone number and update all directory information to reflect you as pointing to this new phone number. In this way, the IP number can be compared to a phone number: When someone calls http://www.example.com/, your ISP looks at the DNS server, and asks “how do I contact example.com?” The DNS server responds: “It can be found at 198.105.232.4”. As the Internet understands it, this can be considered the phone number for the server, which houses the http://www.example.com web site. The DNS records for your domain are kept on your hosting server in the place called DNS zone. When you register a domain b
