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Domain Name Query Request Method and System

A domain name query and query request technology, applied in the domain of domain name query and request, can solve the problems of low execution efficiency, redundancy, waste of DNS server resources and time, etc., to avoid repeated redundant multiple requests and recursive query operations , the effect of improving performance

Active Publication Date: 2017-06-20
INTERNET DOMAIN NAME SYST BEIJING ENG RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, most of the time, resolving a domain name takes 2 DNS services and two recursive queries, resulting in a large number of redundant operations, low execution efficiency, waste of DNS server resources and time, etc.

Method used

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  • Domain Name Query Request Method and System
  • Domain Name Query Request Method and System
  • Domain Name Query Request Method and System

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] figure 1 A schematic flowchart of a domain name query request method provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the method of the domain name query request includes:

[0042] Step S101 , judging whether the domain names of the queries in the request are the same.

[0043] Specifically, when the user requests to query the type records of multiple domain names, the recursive server extracts all the domain names to make a logical judgment. When it is judged that the domain names of each query are different, it will return a format error to the user.

[0044] Step S102 , if it is determined that the domain names of the queries in the request are the same, then search to determin...

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PUM

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Abstract

The present invention provides a domain name query request method and its system, which belong to the field of communication technology. The domain name query request method includes: judging whether the domain names of each query in the request are the same; if the domain name of each query in the request is judged If they are the same, it is judged whether there are all query type records in the local cache; if it is judged that there are no partial query type records in the local cache, the request packet is forwarded to the corresponding authoritative server according to the domain name. The technical scheme of the invention can avoid repeated redundant multiple requests and recursive query operations, and improve the performance of the DNS server.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method for querying and requesting domain names [0002] law and its system. Background technique [0003] At present, the computer domain name system or domain name resolution server (Domain Name System, DNS for short) is mainly deployed by operators, and provides free DNS resolution services for their own users. The domain name resolution request initiated by the user will be sent to the DNS server in the form of a UDP message, and the DNS server will return the result record to the user in the form of a UDP message after receiving and processing it. [0004] The format of the UDP packet is: [0005] [0006] Among them, the format of the message header is: [0007] [0008] [0009] Among them, QDCOUNT: indicates the number of query records. [0010] RCODE: refers to the return code specified when replying: 0: no error; 1: format error; 2: DNS erro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 韩枫蒋超陈政璋刘贵荣
Owner INTERNET DOMAIN NAME SYST BEIJING ENG RES CENT