DOMAIN NAME

DOMAIN NAME :

Every computer on the Internet has its own unique IP address, which is in the form of numbers, e.g., 208.164.1.220. The system of domain names saves the trouble of remembering IP address of Web sites that need to be accessed. Domain names are recognizable words such as www.thinkdigit.com that represent a Web site or computer on the Internet. First, the Internet browser translates the domain name typed in the address bar into the correct IP address. This is known as domain name resolution, and the system that makes this work is called the Domain Name System(DNS). There are 13 root servers distributed globally which perform this task.

The object of the DNS is that anyone connected to the Internet can reach a particular site, or send e mail simply with the correct domain name. For this to work, every domain name must be unique. Having two Web sites with the same domain name would make the system unpredictable and unreliable. This uniqueness makes it a reliable system with universal resolvability. ICANN manages distribution of unique IP addresses and maintains the root servers that store information about all the top level domains (.com, .net, org, etc., and country specific names such as .coin).