DNS resolution time delay acquisition method and device

A collection method and DNS server technology, applied in the field of communication, can solve the problems of large error in DNS resolution delay

Active Publication Date: 2020-02-11
DATANG SOFTWARE TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for collecting DNS resolution time delay to solve the problem of large errors in DNS resolution time delay collected in the prior art

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  • DNS resolution time delay acquisition method and device
  • DNS resolution time delay acquisition method and device
  • DNS resolution time delay acquisition method and device

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Embodiment Construction

[0065] In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] refer to figure 1 , shows the basic process of DNS domain name resolution, the "DNS root server" in the figure is the 13 root servers in the world, the ".com domain name server" is the top-level server, and the "163.com domain name server" provides the source IP address of the domain name, Call it an authoritative server.

[0067] The DNS root server can be the main directory used to manage the Internet, and is the "root" of the DNS tree domain name space. It is responsible for the resolution of TLD (Tracking Learning Detectiom, target tracking algorithm), and plays an extremely critical role in domain name resolution.

[0068] The DNS top-level server can be the organization that manages the domain name of the...

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Abstract

The embodiment of the invention provides a DNS resolution time delay acquisition method and device. The method comprises the following steps: receiving a domain name resolution instruction of a user,and responding to the domain name resolution instruction; obtaining a to-be-collected target domain name and a DNS server identifier, calling the dig command by taking the target domain name to be acquired and the DNS server identifier as parameters of the dig command respectively to obtain a response result, and when the response result conforms to a preset format, taking a time result in the response result as DNS resolution time delay, the DNS analysis time delay representing the time from initiating domain name analysis by the DNS server to finding an authoritative server capable of providing the target domain name information source IP to be acquired. The probe server simulates a user to surf the Internet; the DNS analysis process of surfing the Internet of the user is recorded, the time from domain name analysis initiated by the DNS server to finding of the authoritative server capable of providing the IP of the target domain name information source to be acquired is taken as theDNS analysis time delay for acquisition, the interference of an access network and part of metropolitan area networks can be eliminated, and the DNS analysis time delay acquisition error is reduced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method and device for collecting DNS resolution delay. Background technique [0002] With the vigorous development of the Internet, the speed of accessing the Internet has become a concern of more and more netizens, and it has also become a major concern of the Internet management department. The user enters the URL in the browser of the network client and resolves the source IP address of the website domain name through the local DNS to access the Internet. From this, it can be seen that the performance of the DNS resolution delay (referred to as DNS resolution delay) has a direct impact on the Internet users' online experience. influences. [0003] my country's Internet started late, and many core devices necessary for Internet access, such as root DNS servers and top-level DNS servers, are installed abroad. Therefore, speeding up Internet access cannot be comp...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/10H04L61/4511
Inventor 张钲
Owner DATANG SOFTWARE TECH
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