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What is the function of the domain name service system dns? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

The function of domain name service system dns is to realize the mapping function between domain name and IP, because in network communication, domain name needs to be converted into IP address. As a distributed database that maps domain names and IP addresses to each other, it makes it more convenient for people to access the Internet. To put it simply, it is a system that translates domain names into ip addresses.

DNS implements a hierarchical namespace by allowing a name server to "delegate" some of its name services (known as zone) to child servers. In addition, DNS provides some additional information, such as system aliases, contact information, and which host is acting as a mail hub for system groups or domains.

However, in practical applications, users' access to IP may be telecom or Netcom, so it is difficult to guarantee the speed if cross-network access is carried out between different lines. Therefore, DNS intelligent resolution service arises at the historic moment, which effectively solves the speed bottleneck problem of cross-network access by dynamically resolving domain names to different line IP.

Intelligent domain name resolution means that the domain name resolution server (DNS) resolves the same domain name differently according to the visitor's IP type. Intelligent DNS can accurately judge the type of network used by visitors, provide visitors with the best access resolution address, comprehensively speed up the access speed of each line and the running speed of the website, and greatly improve the user experience.

The domain name resolution of the website is fast and stable, with only 6 groups of DNS round robin, and 6 groups of distributed resolution servers (infinitely scalable systems) are deployed in multiple core computer rooms. Even if some servers fail or are attacked, normal resolution will not be affected. Support intelligent analysis of lines such as telecom, Unicom, search engine, etc.

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