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In order to construct a large number of data streams, hackers often need to construct request data through specific tools. These data packets do not have some behaviors and characteristics of normal users. In order to resist this kind of attack, we can analyze massive data, then model legitimate users, and use these fingerprint features, such as Http model features, data sources, request sources, etc., to effectively filter the white list of request sources, thus realizing accurate cleaning of DDoS traffic.Grandpa said that he had never felt lonely since they fell in love. Grandma said that Grandpa always cared for her like a child."It can also be said that, but the premise is that there are only big wasps, but there are not only big wasps, so things are not so simple. If it were just big wasps, it would not be like what it was later." Zhang Xiaobo said.　　薛仁雅饰演金清儿，她是一个放弃了恋爱和结婚，连续8年准备考公务员的公考生，是一个充满了爱和义气的人物。萧何与张良的本意是让他留在关中负责训练新兵。‘岂曰无衣，与子同袍……话还未说完，黎章就把东西接了过去，白了他一眼道：再有什么好东西，记得别忘了我。