DDoS attack detection and mitigation techniques in cloud computing environment

Cloud computing is the emerging technology and most of the IT enabled services are operating in this platform. In the recent era, the internet infrastructure relies on the cloud for their business and the cloud deployment model is inevitable. The important aspects of the cloud infrastructure are confidentiality, integrity, availability and accessibility. Availability is one of the major concern in providing services to the cloud users without disruption. There exists security and privacy issues in the cloud that affects the cloud utilities. Distributed Denial of Service (DDoS) attack is one of the major cloud security attack that needs utmost consideration. The cloud resources are degraded and the access to critical services are denied to genuine users leading to severe financial loss, data theft and non-repudiation. The article provides an overview of the DDoS attacks in cloud, recent trends and the existing methodologies that are adopted for ensuring cloud security. The threats alarming the security in cloud and the DDoS detection and mitigation methods are discussed and compared to comprehend the significance of the current deployed solutions. Further, the need for devising effective DDoS countermeasures are emphasized and the recent era in cloud computing requires strong security standards and solutions for real time deployment.