Detection and Defense Algorithms of Different Types of DDoS Attacks

Nowadays, computer network is very important because of the many advantages it has. However, it is also vulnerable to a lot of threats from attackers and the most common of such attack is the Distributed Denial of Service (DDoS) attack. This paper presents an overview of the existing detection and defense algorithms to mitigate four types of DDoS attacks and they are the UDP flood, TCP SYN flood, Ping of Death and Smurf attack. A detection and defense algorithm will be proposed in this paper and it will be evaluated using the existing Intrusion Detection and Prevention tool to determine whether it is the best algorithm to mitigate the DDoS attacks on a network environment. The proposed algorithm will be measured in terms of false positive rates and detection accuracy.