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.

• 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。