A framework for virtual machine admission control in cloud environment

Cloud computing is a fast spreading model for service delivery, widely adapted in today's IT environment. It is a combination of other technologies working together, one of them is virtualization, which is the abstraction of computer resources, separating the physical resources from the final resources delivered to the user. Regardless of its wide spread, cloud computing still has security concerns, also there are the threats related to virtualization that are inherited by the cloud. In this paper; a framework is suggested to control the admission of new virtual machines into the cloud environment in an attempt to limit the number of malicious behaving machines that may contain a malware, risking its spread through the environment, or a machine user trying to attack another machine in the same environment. Also machines staying dormant for long periods of time are considered a new admission, for the risk of its disk may have been modified, or its patch level becoming too old.