Abstract
In this work, we propose a Grid-based intrusion detection platform, named Enhanced Dynamic Grid Intrusion Detection Environment (E-DGIDE), which is an extension of our previous system, DGIDE. The DGIDE exploits a Grid’s dynamic and abundant computing resources to detect intrusion packets. The E-DGIDE is a fault-tolerant platform that provides three types of standby mechanisms to prevent itself from crashing. The first two types are hot standby in which the standby subsystem performs the same task as its working subsystem. When the working subsystem fails, the standby takes over the current task immediately with less delay and without information passing. The other is cold standby. When the working subsystem cannot work properly, the E-DGIDE notifies the standby subsystem to take over. With these mechanisms, the reliability of an ordinary security system can be improved.
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