Abstract: A model of intrusion detection based on the mobile agent technology and immune principle，called MAgentIDS，is presented from the aspects of the practical application，which utilizes the mobile agent technology and immune principle to solve the problems on the intrusion detection in the network security area.The immune tolerant model in the IDS is analyzed in especially，and the algorithm of negative selection used in the agent for analyzing is improved.The prototyping system is developed，and the emulational detection is accomplished by simulating the typical intrusions in the LAN.The experimental result indicates that the model is more adaptive than the original one.

摘要： 结合移动agent技术和免疫系统的特性，从实际应用的角度出发，将两者的优势引入网络入侵检测系统的设计，提出了一个基于移动agent的免疫入侵检测系统MAgentIDS模型，并对其做了较为深入的研究。重点分析了用于入侵检测系统的免疫耐受模型，改进了检测分析agent采用的否定选择核心算法。开发了原型系统并模拟一些典型入侵行为，完成入侵检测系统的检测任务，实验结果表明该模型较原有的方法具有更好的适应性。