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High-performance monitoring method for DNS traffic

A high-performance, high-flow technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as DNS traffic entry, DNS query analysis work impact, and failure to analyze, to ensure integrity, ensure accuracy, Guaranteed timeliness

Inactive Publication Date: 2010-06-02
SHANGHAI DNSII INFORMATION TECH
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AI Technical Summary

Problems solved by technology

This method has a significant disadvantage - sampling analysis
Because the DNS traffic is very large, with hundreds of thousands of data packets per second, although sampling analysis can reduce the amount of data analysis, the result of sampling analysis may be that the abnormal DNS traffic enters at a point in time just after sampling, but it is not analyzed.
In addition, there is another disadvantage of this method is that the analysis is performed on the DNS server itself, and the additional analysis work will affect the normal DNS query analysis work of the DNS server

Method used

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with accompanying drawing.

[0039] A high-performance monitoring method for DNS traffic. The method mirrors the inbound and outbound traffic of the communication equipment connected to the DNS traffic collection server to the DNS traffic collection server, and the DNS traffic collection server performs real-time capture, real-time analysis and real-time storage of data packets.

[0040] The uplink communication device includes a switch or a router; the data packets captured by the DNS traffic collection server in real time include:

[0041] The DNS server receives query packet A from the client;

[0042] The DNS server replies to the response packet B of the client;

[0043] The recursive query packet C sent by the DNS server to the upper-layer DNS server;

[0044] The DNS server receives the recursive response packet D replied by the upper layer DNS server.

[0045] The DNS traffic collection serv...

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Abstract

The invention relates to a high-performance monitoring method for DNS traffic. In the method, the inlet and outlet traffic of an up-link communication device of a DNS traffic acquisition server is imaged to the DNS traffic acquisition server. The DNS traffic acquisition server carries out real-time snatch, real-time analysis and real-time storage on data packets. Compared with the prior art, the method enables the DNS data analysis to have the advantages of accuracy, timeliness, real time and integrity.

Description

technical field [0001] The invention relates to a method for monitoring DNS traffic, in particular to a high-performance monitoring method for DNS traffic. Background technique [0002] DNS (Domain Name System) is the domain name system, and its function is to coordinate the two-way switching between IP addresses and host names. DNS is the infrastructure of today's Internet, and many network services (such as Http, Ftp, Email, etc.) are based on the DNS system. Provincial operators (including fixed network or mobile operators) provide Internet users with DNS network operation services. Usually, each provincial operator's DNS network is divided into several nodes, and each node is composed of a router, The switch is composed of several servers, and each server runs DNS software to provide resolution of DNS queries. [0003] In view of the importance of the DNS network, it is very necessary to obtain statistical indicators by monitoring the DNS traffic to grasp the daily ope...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24H04L29/12
Inventor 龙雷
Owner SHANGHAI DNSII INFORMATION TECH
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