Abstract
Cloud computing is a hot issue in recent years. A lot of company offer the cloud service. Therefore, the cloud security issues have become more and more important and new attack methods appear. For defensing these attacks, people want to combine the IDS (Intrusion Detection System) and the cloud environment. However, the traditional IDS can't detect the attack which is inside of the cloud, it must change the architecture. However, the architecture must have drawbacks in nowadays. In this thesis, we try to analysis the advantages and disadvantages in different architectures and improve the drawback. Otherwise, we have another part to discuss that how to have a centralized management in cloud environment.