Now-a-days cloud computing has become very popular since it reduces infrastructure cost. Hence, the level of security measures also has to be increased. Intrusions Detection Systems (IDSs) are designed to handle attacks but many Intrusion Detection System (IDS) are designed for specific attack/attacks. It is evident that no single technique can guarantee protection against future attacks. To handle large scale network access traffic and administrative control of data and application in cloud, the authors have to develop a new cloud IDS model that can assure maximum security in cloud.