A Framework for Monitoring and Security Authentication in Cloud based on Eucalyptus

Since the cloud computing was proposed, the research of cloud instantaneously swept the world and all kinds of cloud products have appeared in public eyes. But if the cloud platform security is not guaranteed, companies or individuals will not run and store their own data in the cloud, especially since the Hollywood nude-picture scandal event put the cloud computing to the point of a struggle. So how to put these cloud product promotion out and make interest to the company becomes the company's biggest problem, and the credible cloud's service has become an urgency to implement. In this paper, we are concerned with trust in the cloud computing. Paper mainly launches the discussion from the application layer and infrastructure layer. The monitoring system collects data from cloud system real time, and makes the corresponding judgment according to the analysis results. At the same time, the system will report the data to the third party to record and modify the system rules timely. By these means, the cloud system can improve the stability of the service and make it more credible.