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The attacker first completes the three-way handshake to establish the connection, but in the last ACK reply of the three-way handshake, the TCP window size is set to 0, and then a data request is made. When the attack target sends the request result to the attacker, it stops the data transmission when it finds that the TCP window size is 0, and sends out a TCP window detection packet to ask the attacker if the TCP window has been updated. Since the attacker will not update the window size, the attack target will always maintain the TCP connection and wait for the data to be sent, and continuously carry out TCP window size detection. When the number of controlled hosts in the botnet is large, Target's connection table will gradually be exhausted, resulting in denial of service.去找徐先生？咋？帮我捎去，烦请他帮我品鉴一二。There are many kinds of time relays, mainly air damping type, electromagnetic type, electric type and electronic type.Arawee（Jui饰） 和 Anthiga（Rita饰） 是同父异母的两姐妹，她们总是不断的竞争，互不相让，她们拿两兄弟的真爱来当赌注，Arawee 将利用这次机会来报复她的妹妹，因为她不相信真爱，Anthiga 则想方设法想要赢得她爱的男人的心，然而这场比赛却渐渐不受她们控制了...　　该剧由新冠疫情背景下不得不改变生活方式的人们的各自视角短篇剧集组成。Then look at the source code of activity's dispatchTouchEvent (), getWindow (). SuperDispatchTouchEvent (ev). This method is the method of Window abstract class class. Everyone knows that the implementation class of Window is PhoneWindow, so directly look at the superDispatchTouchEvent () method of PhoneWindow:讲述了1945国共内战爆发。8月中旬，国民党军第2战区司令长官司阎锡山，以第8集团军副总司令兼第19军军长史泽波率第19军等部1.7万人，企图侵占整个晋东南地区。晋冀鲁豫军区司令员刘伯承、政治委员邓小平集中军区3个纵队及地方武装3.1万人，在5万民兵的配合下，发起了上党战役。经过近半个月的激战，刘邓大军全歼守敌，取得了国共战场上第一次真正意义上的大捷！