Method and Terminal for Improving DNS Availability

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

Active Publication Date: 2022-04-05
CHINANETCENT TECH
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  • Summary
  • 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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  • Method and Terminal for Improving DNS Availability
  • Method and Terminal for Improving DNS Availability
  • Method and Terminal for Improving DNS Availability

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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 DNS availability. In the embodiment of the present invention, the method for improving DNS availability includes: respectively initiating DNS requests to the preset primary DNS server and backup DNS server; if it is determined that the response result of the primary DNS server is received within the time threshold, When the response result of the primary DNS server is available, the response result of the primary DNS server is used as the domain name resolution result corresponding to the DNS request; when the response result of the primary DNS server is not available, the response result of the received backup DNS server is used as the domain name resolution result corresponding to the DNS request. The embodiment of the present invention also provides a terminal. The technical solution provided by the embodiment of the present invention not only guarantees the resolution speed, but also ensures that the resolution result of the main DNS server is used preferentially, and ensures the DNS resolution scheduling within the operator.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H04L61/103H04L61/4511H04L67/60
Inventor 陈东毅
Owner CHINANETCENT TECH
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