Domain name server
Domain name server Translate domain name to IP address
Specialized computers called root servers store the IP addresses of each Top Level Domain's registries. Therefore, the first stop that the DNS makes when it resolves, or translates, a domain name is at its associated root server. From there, the requested domain name is sent along to a Domain Name Resolver, or DNR.
At this point, the resolver goes through a process called recursion to convert the domain name into an IP address. DNS Settings on a Mac (left) and Windows Settings for IPv4 Protocol of the network connection (right). The resolver starts by querying one of the root DNS servers for the IP of www.google.com.
IP Address. ... It is the fact that the DNS is an Internet service that translates domain names/hostnames to IP addresses (forward DNS) and IP addresses to their associated domain names/hostnames (Reverse DNS) with the help of a DNS server.
For example, in the URL http://www.pcwebopedia.com/index.html, the domain name is pcwebopedia.com. Because the Internet is based on IP addresses, not domain names, every Web server requires a Domain Name System (DNS) server to translate domain names into IP addresses.