An Overview of Defense Techniques Against DoS Attacks

Denial of Service (DoS) attack is a common type of cyberwarfare and as the name shows that its basic purpose is to stop services for legitimate users. It is different from hacking something such as unauthorized access, steal sensitive information, or leak information, etc. Our research provides the historical attacks, prediction, and types of DoS as well as its defenses. There are different defense mechanisms for several DoS attacks. We categorize these tools and techniques into two types i.e. client-side defense and server-side defense. So, the server-side defense tools are more effective and convenient but client-side defenses are difficult to deploy to the whole world. However, this is very important for identifying, mitigating, and preventing the DoS attacks for national and commercial security.