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Network intrusion detection system

A network intrusion detection and network packet technology, which is applied in the field of intrusion detection systems, can solve problems such as time-consuming and limited host processing capabilities, and achieve high processing efficiency.

Inactive Publication Date: 2012-09-05
INVENTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But for the host of the intrusion detection system, not all periods are under high load
Moreover, the processing capacity of the host computer of the intrusion detection system is limited.
When the host is under high load, it is bound to take more time for the host to process all inspection rules than when it is under low load

Method used

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  • Network intrusion detection system
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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0018] figure 1 It is a schematic diagram of the network topology of the intrusion detection system of the preferred embodiment of the present invention. Please refer to figure 1 , in this embodiment, all network packets will flow through the border nodes, so the intrusion detection system 110 is set up on the border nodes (or border routers) of the local area network 120, and the network packets with malicious intrusion / attack behavior content ( Hereinafter referred to as malicious packets) are filtered out to protect the computer hosts (121-126) inside the local area network 120 from malicious packet attacks from the Internet 130.

[0019] The host of the intrusion detection system of the present invention at least includes a network connection unit, a storage unit and a processing unit. The network connection unit is use...

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Abstract

The invention discloses a network intrusion detection system. The network intrusion detection system is used for detecting and monitoring network packets and determines the uploading and operation of detection rules according to current load. The network intrusion detection system comprises a network connection unit, a storage unit and a processing unit. The processing unit is used for operating an alarm analysis program, a plurality of detection rules and a plurality of operation policies according to the received network packets; the alarm analysis program is used for detecting whether the contents of the network packets meet the detection rules, designating resource consumption grades to the detection rules and classifying the detection rules into the corresponding operation policies according to the resource consumption grades; the load grade of the processing unit is determined according to equipment load and access load; and the operation policy and the alarm analysis program, which are run by the processing unit, are determined according to the load grade.

Description

technical field [0001] The invention relates to an intrusion detection system, in particular to an intrusion detection system which can be adjusted accordingly for different resource consumption. Background technique [0002] In the past, network security solutions mostly consisted of antivirus software and firewalls to achieve basic network security protection. The anti-virus software prevents the computer system from being infected with computer viruses, and the firewall protects private data from being stolen. Although firewalls and anti-virus viruses can control most malicious intrusions by those who intend to invade computer systems, some hackers can still break through firewalls and invade computer systems. The network intrusion detection system (Intrusion Detection System, IDS) technology has developed into an important technology to protect the computer system from being stolen data or maliciously destroying the computer. The intrusion detection system combined with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/06
Inventor 孙萌陈玄同
Owner INVENTEC CORP