SYSTEM AND METHOD FOR CONFRONTING DDOS ATTACK, AND RECORDING MEDIUM RECORDING PROGRAM FOR THE SAME

摘要

PURPOSE: A system and a method for confronting a DDoS(Distributed Denial of Service) attack, and a recording medium recording a program for the same are provided to control a network connection device by detecting the DDoS attack, confront system breakdown and network resource loss, and guarantee the stable operation of the system by blocking the DDoS attack at a backbone. CONSTITUTION: A statistics database(200) stores traffic statistics values. A confrontation server(100) judges abnormality by collecting traffic information from the network connection devices(10,20,30), judges that the abnormal traffic is attacked by the DDoS attack, and applies a traffic migration limit to the network connection device attacked by the DDoS attack. The confrontation server comprises a detecting tool(110) and a confronting tool(120).