Distributed Denial of Service Attack (DDoS) is one of the dangers intrusion, the intrusion hide themselves through all kinds of ways, Trace back is one of major hotspot of net security science.

• 摘要分布式拒绝服务攻击通过控制多台傀儡机对目标机进行攻击，该类型攻击的攻击路径隐蔽，对攻击者跟踪困难。