Paper Title
An Overview Of Denial Of Service Attacks And Prevention Mechanisms

Distributed denial of service (DDoS) attack is common and fast growing problem in today’s era of Internet technology. It aims to attack network systems in the Internet and have become highly significant incident that is required to be solved immediately. These attacks are very complex and aim at crippling applications, servers anddisrupting legitimate user’s communication. This problem has circumvented the entire Internet thereby preventing the legitimate users to get access to the normal services and the resources for which they are authorized. Various prevention schemes are discussed in literature but a complete solution is still to be discovered. The purpose of this paper is to give an overview of DDoS attacks and discuss various prevention mechanisms used to prevent them. Therefore, the study in this paper will help the researchers a better understanding about the DDoS problem and prevention schemes to prevent the DDoS.