Cloud computing delivers various services through the Internet, which meets the demands of different devices. Trending in different way cloud uses the concept of virtualization which drags different platforms, resources, software’s,etc.into a single window. There are many services offered by a cloud like software-as-a service (SaaS), Platform-as-a service (PaaS), infrastructure as a service (IaaS) and Network-as-a service, Even though the benefits of these services are huge cloud suffers from various threats. In this paper, we mainly focus on the DDoS attacks in the cloud and provide a systematic approach to detecting and defend DDoS attacks in the cloud. © 2016, International Journal of Pharmacy and Technology. All rights reserved.