1 INTRODUCTION

2 CLASSIFICATION OF DDOS ATTACKS

3 DIFFERENT DDOS ATTACKS
3.1 Volumetric DDoS Attacks
3.2 Protocol Attacks
3.3 Low Rate DDoS Attacks
3.4 Vulnerability-Based DDoS Attacks

4 DDOS MITIGATION

5 DEFENSES FOR LOW RATE ATTACKS

6 CONCLUSIONS