What is a DNS server

The DNS server is the abbreviation for the computer domain Name System, domain name, or domain Name service, which is composed of a parser and a domain name server. A domain name server is a server that holds the domain name and corresponding IP address of all the hosts in the network and has the ability to convert domain names to IP addresses.

The domain Name system uses a hierarchical structure similar to that of a directory tree. A domain name server is a server in client, server mode, and it has two main forms: the primary server and the forwarding server. The process of mapping a domain name to an IP address is referred to as "domain resolution."

Domain names and IP addresses on the Internet are one-to-one (or many-to-many), can also use DNS round to realize a one-to-many, domain name although easy for people to remember, but only IP address between machines, the transformation between them is called Domain name resolution, domain name resolution needs to be specialized domain name resolution server to complete, DNS is the server for domain name resolution.

At present, the market of Third-party Professional DNS resolution are: DNS shield, Dnspod, etc.

DNS names are used in TCP/IP networks such as the Internet to find computers and services through a user-friendly name. When a user enters a DNS name in an application, the DNS service can resolve the name to other information associated with it, such as an IP address. You enter the Web site, is through the domain name resolution system to find the corresponding IP address, so as to access the Internet. In fact, the end point of the domain name is IP.