Method and device for preventing CC (Challenge Collapsar) attack and content delivery network server

A server and browser version of the technology, applied in the field of communication, can solve problems such as unsatisfactory defense effect, and achieve ideal defense effect.

Inactive Publication Date: 2011-07-27
CHINACACHE INT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method, device and content distribution network server for defending against CC attacks, which are used to solve the problem in the prior art that when defending against CC attacks, it is impossible to refer to the actual processing conditions of the server for targeted defense, resulting in unsatisfactory defense effects

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  • Method and device for preventing CC (Challenge Collapsar) attack and content delivery network server
  • Method and device for preventing CC (Challenge Collapsar) attack and content delivery network server

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Embodiment Construction

[0020] Embodiments of the present invention provide a method, device and content distribution network server for defending against CC attacks, which can solve the problem in the prior art that when defending against CC attacks, it is impossible to refer to the actual processing conditions of the server for targeted defense, resulting in unsatisfactory defense effects question.

[0021] The embodiment of the present invention provides a method for defending against CC attacks, such as figure 1 shown, including the following steps:

[0022] S101: The server receives the request message sent by the client, and determines the identification information of the request message;

[0023] S102: Search the saved blacklist, and discard the request message when it is determined that the identification information belongs to the blacklist, wherein the blacklist is generated according to the access record of the server.

[0024] Preferably, the access records include: source IP addresses...

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Abstract

The invention discloses a method and a device for preventing CC (Challenge Collapsar) attack and a content delivery network server, which are used for solving the problem that in the prior art, when the CC attack is prevented, targeted prevention can not be carried out by referring to the actual processing conditions of a server, and the prevention effect is not ideal. The method comprises the following steps: the server receives a request message transmitted by a client, and determines the identification information of the request message; a stored blacklist is queried, and the request message is lost when the identification information is determined to belong to the blacklist, wherein the blacklist is generated according to the access records of the server. By the method and the device for preventing CC attack and the content delivery network server, the blacklist can be generated according to the access records of the server, so that the request message is filtered according to the blacklist, and further, the targeted prevention can be carried out according to the actual processing conditions of the server, so that the prevention effect is more ideal.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method, device and content distribution network server for defending against CC attacks. Background technique [0002] With the rapid development of information technology, computer network technology has been widely popularized in all walks of life around the world. However, the rapid development of network applications and the rapid expansion of network scale make security loopholes in the network ubiquitous. These security loopholes are Network attacks provide breeding grounds, and the popular Challenge Collapsar (CC) attack in recent years is one of the network attacks. [0003] CC attack is a page-based distributed denial-of-service attack that consumes server resources by sending performance-consuming Hypertext Transfer Protocol requests. The attacking host repeatedly initiates access requests to pages with relatively high overhead on the target host, causing the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 赵伟王兴华宗劼
Owner CHINACACHE INT HLDG
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