What is DDoS?
Richard R. Brooks, İlker Özçelik · 2020
This chapter looks at the Distributed Denial of Service (DDoS) attack problem from an attacker&s;s perspective and classify attacks based on how the attack is performed. It investigates DDoS attacks in five classes: Resource Saturation, Exploiting System and/or Network Vulnerabilities, Modification of Configurations, Misuse and Physical Destruction. The goal of resource saturation attacks is to consume as much of the victim&s;s critical resources as possible. This resource can be a system resource such as CPU, memory and disk space or a network resource such as bandwidth. Since these kinds of DDoS attacks are easy to perform and difficult to stop, they are commonly used by the attackers. Network bandwidth is one of the popular targets during DDoS attacks. Attackers flood the victim with dummy traffic to disconnect it from the rest of the network. In asymmetric DDoS attacks, the attacker reflects attack traffic to conceal its identity and amplify the amount of attack traffic.