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Method for processing domain name inquiry request, recurrence server and domain name system

A technology of recursive server and domain name query, applied in the field of domain name query request processing, recursive server and domain name system, which can solve the problems of insufficient storage of query requests and lower domain name service quality, so as to avoid denial of service and improve domain name resolution service quality Effect

Active Publication Date: 2014-06-18
CHINA INTERNET NETWORK INFORMATION CENTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the domain name query traffic in the network is very large or attacks occur, the limited resources of the recursive server are not enough to save more query requests, so the newly received query requests can only be discarded, resulting in denial of service, thereby reducing the domain name quality of service

Method used

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  • Method for processing domain name inquiry request, recurrence server and domain name system
  • Method for processing domain name inquiry request, recurrence server and domain name system
  • Method for processing domain name inquiry request, recurrence server and domain name system

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] figure 1 It is a flow chart of Embodiment 1 of the domain name query request processing method of the present invention, such as figure 1 As shown, the method of this embodiment may include:

[0027] Step 101, setting the first query timeout time of the first query list to be greater than the second query timeout time of the second query ...

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Abstract

The invention relates to a method for processing a domain name inquiry request, a recurrence server and a domain name system. The method for processing the domain name inquiry request comprises the following steps of: setting the first inquiry timeout duration of a first inquiry list to be more than the second timeout duration of a second inquiry list; and when the domain name inquiry request sent by user equipment is received, adding the domain name inquiry request into the first inquiry list or the second inquiry list according to the current situation which indicates whether the first inquiry list and the second inquiry list are full or not. The recurrence server comprises a receiving module, a processing module and a setting module. The domain name system comprises the recurrence server and at least one authority server connected with the recurrence server. The inquiry requirement of the user equipment can be met to the greatest extent when the recurrence server is busy due to an attack or other causes, the phenomenon of denial of a service is avoided and the service quality of the recurrence server is enhanced.

Description

technical field [0001] The invention relates to network communication technology, in particular to a domain name query request processing method, a recursive server and a domain name system. Background technique [0002] Domain Name System (Domain Name System, hereinafter referred to as: DNS) is an important Internet infrastructure, including a distributed database that can map domain names and IP addresses to each other, and a software system that implements domain name and IP address conversion functions. [0003] DNS servers are divided into recursive servers and authoritative servers. When a user equipment (UserEquipment, hereinafter referred to as: UE) initiates a domain name query, it sends a DNS query request to the local recursive server. After receiving the query, the recursive server first checks whether the requested data is saved in the cache. If it is saved, Then the recursive server can immediately put the query result into the response packet, and return the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 毛伟李晓东王欣金键罗策韩枫
Owner CHINA INTERNET NETWORK INFORMATION CENTER
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