Distributed denial-of-service is one kind of the most highlighted and most important attacks
of today's cyberworld. With simple but extremely powerful attack mechanisms, it introduces
an immense threat to current Internet community. In this article, we present a comprehensive
survey of distributed denial-of-service attack, prevention, and mitigation techniques. We
provide a systematic analysis of this type of attacks including motivations and evolution,
analysis of different attacks so far, protection techniques and mitigation techniques, and …

Information security deals with a large number of subjects like spoofed message detection,
audio processing, video surveillance and cyber-attack detections. However the biggest
threat for the homeland security is cyber-attacks. Distributed Denial of Service attack is one
among them. Interconnected systems such as database server, web server, cloud computing
servers etc., are now under threads from network attackers. Denial of service is common
attack in the internet which causes problem for both the user and the service providers …