云计算的特点是具有强大的计算能力和存储能力。入侵检测技术在网络安全技术中占有重要地位，但目前的入侵检测技术仍存在许多尚未解决的问题，如无法应对分布式大规模数据流攻击等。移动代理技术可给入侵检测系统带来更好的灵活性和可扩展性，结合移动代理的优势，构造了云环境下基于移动代理的入侵检测系统框架。采用NS2软件分别模拟一般网络条件与云环境下基于移动代理框架的DDoS节点攻击的两种场景，实验结果表明，云环境下基于移动代理框架的检测效果更佳。%Cloud computing is characterized by a powerful computing and mass storage capacity. Though intrusion detection technology plays an important role in network security, it still has many unresolved issues, for example, traditional intrusion detection technology can not cope with large-scale data flow of distributed attacks. Mobile agent intrusion detection technology has its advantage of flexibility and scalability. Therefore, based on the superiority of mobile agents, we constructed mobile agent intrusion detection framework in the cloud environment. This paper uses NS2 software for simulating two scenes which are general network and mobile agent framework in cloud computing environment of DDoS attack nodes, The experimental results explain that intrusion detection method based on mobile agent framework in cloud computing is feasible and effective.
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