Domain name resolution method of mobile internet and DNS server based on TCP protocol

Abstract

The invention provides a domain name resolution method of mobile internet and a DNS server based on a TCP protocol. The domain name resolution method comprises the steps that after the DNS server receives a domain name resolution request sent by a browser of a mobile terminal, the DNS server firstly confirms that the cache library or the DNS database of the DNS server has no resolution result matched with a domain name, then the DNS server initiates domain name resolution requests to the Bind cache server set of at least one domain, the Bind cache server set sends domain name resolution results to the DNS server, and then the DNS server selects the domain name resolution results and returns the domain name resolution results to the browser of the mobile terminal. According to the domain name resolution method of mobile internet and the DNS server based on the TCP protocol, the problem of data packet dropout due to poor network quality of the mobile internet can be solved, and therefore the availability and stability of the DNS server in a web browsing process is improved.

Description

technical field [0001] The present invention relates to the technical field of DNS service, and more specifically, relates to a TCP protocol-based mobile Internet domain name resolution method and a DNS server. Background technique [0002] With the continuous development of science and technology, more and more people begin to use mobile terminal devices such as mobile phones to access the Internet, so as to keep abreast of information. DNS (Domain Name System, Domain Name System), as a core service of the Internet, maps domain names and IP (Internet Protocol, Internet Protocol) addresses to each other, so that users can use domain names to access the Internet more conveniently without having to remember Hold the IP number string that can be read directly by the machine. [0003] When a user visits a webpage, he first requests the DNS server to resolve the domain name of the webpage to be accessed to obtain the IP address corresponding to the domain name of the webpage, an...

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Problems solved by technology

[0006] In view of the above problems, the purpose of the present invention is to provide a mobile Internet domain name resolution method and DNS server based on the TCP protocol, to solve the request data sent by mobile terminal browsers such as mobile phones due to poor network quality and packet loss in the mobile Internet. The problem that the DNS server cannot be reached normally or the browser cannot normally receive the answer result of the DNS server to improve the availability and stability of the DNS server when browsing the web

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