Abstract
Cloud computing is a distributed architecture that has shared resources, software, and information. There exists a great number of implementations and research for Intrusion Detection Systems (IDS) in grid and cloud environments, however they are limited in addressing the requirements for an ideal intrusion detection system. Security issues in Cloud Computing (CC) have become a major concern to its users, availability being one of the key security issues. Distributed Denial of Service (DDoS) is one of these security issues that poses a great threat to the availability of the cloud services. The aim of this research is to evaluate the performance of IDS in CC when the DDoS attack is detected in a private cloud, named Saa SCloud. A model has been implemented on three virtual machines, Saa SCloud Model, DDoS attack Model, and IDSServer Model. Through this implementation, Service Intrusion Detection System in Cloud Computing (SIDSCC) will be proposed, investigated and evaluated.