摘要： 由于对等网络的松散性,基于洪泛式请求的拒绝服务(DoS)攻击已经成为其主要威胁之一。文章首先介绍和分析了DoS问题在对等网络下的特点和带来的一些新问题,并提出了以带宽占用状态分析为主要依据,DoS特征分析为辅的自适应防御的机制,并提出一些具体处理方法,以探索可行的防御模型。

关键词: 对等网络, DoS, DDoS, 洪泛式请求

Abstract: Query-flood denial-of-service(DoS) attacks are becoming one of the major threats in peer-to-peer networks which are loosely connected. Compared to the situation in traditional networks, this paper describes an automatic defense mechanism of analysis chiefly on bandwidth status and characteristics of DoS subordinately, and then some concrete methods are proposed to explore a feasible defense model.

中图分类号: 

• TP393