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Method, device and equipment for protecting SYN Flood attack

A packet and client technology, applied in the field of communication security, can solve problems such as hacker attacks, coarse-grained filtering conditions for legitimate IPs, and unsolved hacker SYNFlood attacks, so as to ensure normal operation and improve attack protection capabilities.

Inactive Publication Date: 2020-11-20
HANGZHOU ANHENG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When dealing with SYN Flood attacks, the existing attack protection system mainly cleans the traffic of false source IPs, but it does not solve the behavior of hackers using legitimate IPs to carry out SYN Flood attacks. Vulnerabilities exploited by hackers

Method used

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  • Method, device and equipment for protecting SYN Flood attack
  • Method, device and equipment for protecting SYN Flood attack
  • Method, device and equipment for protecting SYN Flood attack

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Embodiment Construction

[0055] The core of this application is to provide a method for protecting against SYN Flood attacks. This method for protecting against SYN Flood attacks can effectively solve the problem that hackers use legal IPs to carry out SYN Flood attacks, further improve the attack protection capabilities of the system, and ensure the normal operation of the system. Operation; another core of the present application is to provide a device, system and computer-readable storage medium for preventing SYN Flood attacks, which also have the above-mentioned beneficial effects.

[0056]In order to describe the technical solutions in the embodiments of the present application more clearly and completely, the technical solutions in the embodiments of the present application will be introduced below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on t...

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Abstract

The invention discloses a method for preventing SYN Flood attacks, which comprises the following steps: when a first message sent by a client is received, discarding the first message; judging whethera second message sent by the client is received within a specified time period after the first message is discarded or not; if so, generating a rebound message according to the second message and a preset confirmation serial number and sending the rebound message to the client; when a third message sent by the client according to the rebound message is received, obtaining a confirmation serial number according to the third message; judging whether the confirmation serial number is equal to a preset confirmation serial number; if so, generating a response data packet corresponding to the thirdmessage and sending the response data packet to the client. The method can effectively solve the problem that a hacker carries out SYN Flood attack by using a legal IP, improves the attack protectioncapability of the system, and ensures the normal operation of the system. The invention further discloses a device and a system for protecting the SYN Flood attack and a computer readable storage medium, which all have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of communication security, in particular to a method for protecting against SYN Flood attacks, and also relates to a device, system and computer-readable storage medium for protecting against SYN Flood attacks. Background technique [0002] SYN Flood is currently one of the most popular methods of DoS (Denial of Service) and DdoS (Distributed Denial of Service), which is a method of sending a large number of fake TCP Connection request, so that the resources of the attacked party are exhausted (such as full CPU load or insufficient memory). [0003] When dealing with SYN Flood attacks, the existing attack protection system mainly cleans the traffic of false source IPs, but it does not solve the behavior of hackers using legitimate IPs to carry out SYN Flood attacks. Hackers exploit the loopholes to attack. [0004] Therefore, how to effectively solve the problem that hackers use legal IPs to carr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/801
CPCH04L63/1458H04L63/101H04L47/34
Inventor 吴昊天范渊
Owner HANGZHOU ANHENG INFORMATION TECH CO LTD
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