Authors: Jungmin Lim Yongki Kim Dongyoung Koo Soojin Lee Seokjoo Doo Hyunsoo Yoon
Publish Date: 2013/04/06
Volume: 66, Issue: 2, Pages: 918-935
Abstract
Recently the building of strong intrusion tolerant systems is in great demand since the openness and the distributed nature of information systems are easily used to compromise the systems by intentional attacks To achieve intrusion tolerance by enabling the systems to survive various types of intrusions we suggest a novel approach Adaptive Cluster Transformation ACT in this paper Instead of using a fixed cluster size as in conventional approaches ACT adapts a variable cluster size depending on the system status This is proved to maintain good quality of service QoS In addition the early prediction of incoming massive packets makes ACT possible to replace any damaged clusters with new ones consisting of pristine virtual machines VMs This also contributes to defend the system against a Denial of Service DoS The performance of ACT is compared with other fixed sizes of VM cluster architectures by CSIM 20 And it is verified that the proposed method is more effective in maintaining the specific level of QoS as well as providing strong security to the targeted system
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