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DNS Service DNS is an important blend of network technology, law, and public policy is emerging in the Internet arena. The issues and controversies revolve around the Domain Name System (DNS) - a service used by the Web, Internet, Email, and countless other network services; and it concerns the extent to which the DNS must be governed from the top down, and what the nature of that governance must be.

The DNS - which is little more than a distributed directory service for providing users with a user-friendly means of identifying their computer systems.The Domain Name Service (DNS) is mainly concerned with the conversion of TCP/IP addresses (such as 129.11.16.2) into hostnames (such as gps.leeds.ac.uk), and vice versa. These conversions can be done for addresses of hosts on TCP/IP networks that are connected to the Internet. The DNS servers are accessed from client machines by code called the resolver. For example, when a user types in a URL to a web browser, the browser passes the domain name part of the URL to the resolver, which then makes a request to a DNS server for the corresponding IP number. It is the job of the resolver to query a second or third server if the first DNS server doesn't answer.