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A method and device for protecting against mixed ddos ​​attacks

A hybrid, attacking traffic technology, applied in the field of network communication, can solve problems such as inability to provide quality of service, failure of computers or servers to operate normally, and degradation

Active Publication Date: 2020-12-29
HANGZHOU DPTECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Denial of service attack means that the attacker deliberately causes the computer or server to fail to operate normally by some means, so that the computer or server cannot provide the required service to legitimate users or reduce the quality of service.

Method used

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  • A method and device for protecting against mixed ddos ​​attacks
  • A method and device for protecting against mixed ddos ​​attacks
  • A method and device for protecting against mixed ddos ​​attacks

Examples

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Embodiment Construction

[0022] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

[0023] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and / or" as...

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Abstract

The application provides a method and device for protecting against a mixed DDoS attack, applied to a protective device. The method for protecting against the mixed DDoS attack comprises the followingsteps: judging whether the received traffic is DDoS attack traffic or not; performing network layer attack protection against the traffic if the traffic is the DDoS attack traffic; judging whether the size of the traffic exceeds the software processing performance or not in the case of further confirming that the destination port of the traffic is an application layer protocol port; and performing application layer attack protection against the traffic if the size of the traffic does not exceed the software processing performance. By means of the method for protecting against the mixed DDoS attack, the large traffic mixed DDoS attack can be effectively protected against, and the system abnormal operation caused by the condition that the network layer attack protection is failed can also be avoided.

Description

technical field [0001] The present application relates to the technical field of network communication, and in particular, to a method and device for protecting against hybrid DDoS attacks. Background technique [0002] A DDoS (Distributed Denial of Service) attack refers to a denial of service attack that is simultaneously launched by multiple attackers in different locations to one or several targets. A denial of service attack means that an attacker intentionally causes a computer or server to fail to operate normally by some means, so that the computer or server cannot provide the required service to legitimate users or reduce the quality of service. [0003] The denial of service attacks include network layer attacks, application layer attacks, and mixed attacks, wherein the mixed attacks are DDoS attacks that combine network layer attacks and application layer attacks. Common network layer attacks include SYN Flood, ACKFlood, UDP Flood, and ICMP Flood, and common appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/1416H04L63/1425H04L63/1458H04L63/168
Inventor 田境遴邢涛
Owner HANGZHOU DPTECH TECH
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