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A method and a terminal for improving the availability of a DNS

A usability and DNS server technology, applied in electrical components, transmission systems, etc., can solve problems such as poor DNS scheduling results and unresolvable domain names, and achieve the effect of ensuring resolution speed

Active Publication Date: 2019-06-21
CHINANETCENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found that there are at least the following problems in the prior art: the current method to improve the success rate of DNS resolution, or when the domain name resolution fails, the user needs to wait for the spare resolution time, or may change the user's original DNS server address, resulting in DNS scheduling The result is poor, and some operators' internal domain names cannot be resolved, etc.

Method used

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  • A method and a terminal for improving the availability of a DNS
  • A method and a terminal for improving the availability of a DNS
  • A method and a terminal for improving the availability of a DNS

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

[0020] The first embodiment of the present invention relates to a method for improving DNS availability, comprising: initiating a DNS request to a preset primary DNS server and a backup DNS server; judging whether a request from the primary DNS server is received within a preset time threshold Response resul...

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Abstract

The embodiment of the invention relates to the technical field of domain name resolution, and discloses a method and a terminal for improving the availability of a DNS. In the embodiment of the invention, the method for improving the availability of the DNS comprises the following steps: respectively initiating a DNS request to a preset main DNS server and a preset standby DNS server; If it is judged that the response result of the main DNS server is received within the time threshold value, the main DNS server is started; if yes, when the response result of the main DNS server is available, taking the response result of the main DNS server as a domain name resolution result corresponding to the DNS request, and when the response result of the main DNS server is unavailable, taking the received response result of the standby DNS server as a domain name resolution result corresponding to the DNS request. The embodiment of the invention also provides a terminal. According to the technical scheme provided by the embodiment of the invention, while the analysis speed is ensured, it is ensured that the analysis result of the main DNS server is preferentially used, and DNS analysis scheduling in an operator is ensured.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of domain name resolution, and in particular to a method and terminal for improving DNS availability. Background technique [0002] DNS (Domain Name System, Domain Name System), a distributed database on the World Wide Web that maps domain names and IP addresses to each other, enables users to access the Internet more conveniently, without having to remember IP numbers that can be directly read by machines. Through the domain name, the process of finally obtaining the IP address corresponding to the domain name is called domain name resolution (or host name resolution). [0003] When the DNS server is abnormal, or the configuration is wrong, etc., resulting in domain name resolution failure, the terminal cannot correctly obtain the IP corresponding to the domain name, which will cause access failure and users cannot correctly obtain resources. At present, there are two main methods...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/12
Inventor 陈东毅
Owner CHINANETCENT TECH
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