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The sockstreet attack first completes the tcp three-way handshake the tcp connection is established, but in the last ack reply of the three-way handshake, the attacker sets its tcp window to 0 and then makes a data request. When the target discovers that the TCP window size at the receiving end is 0 when transmitting data, it will stop transmitting data and issue a TCP window probe packet to ask the attacker if its TCP window has been updated. Since the attacker does not change the size of the tcp window, the target will always maintain the tcp connection waiting for data to be sent and continuously carry out window update detection. If the attacker uses a large number of controlled hosts to carry out sockstreet attacks, the target will always maintain a large number of tcp connections and carry out a large number of window update detection, and its tcp connection table will gradually run out.官方宣布第六季张家三个表姐弟，张嘉超、姜萌萌、张兆阳都在海外留学。张嘉超因为母亲大腿骨折，不得不回国照看；姜萌萌学成回国；张兆阳由于被学校开除早已偷偷潜回国内。原本打算当富太太的姜萌萌遭遇未婚夫临阵逃跑；拿着国外假文凭的张兆阳整日游手好闲；曾经强奸张嘉超的于海飞，竟然成了姜萌萌的新男朋友。张嘉超先后经历了父亲亡故、噩梦重温，终于战胜自我，接受了真爱，并决定留在国内，投身到祖国的科学事业之中；姜萌萌在失业中找到了自我价值，成长为独立女性；张兆阳也决定脚踏实地工作。1939年，抗日战争转入艰苦的相持阶段，日寇侵略的铁蹄在湖南战场受阻，湖南成为抗日战争正面战场的最前沿。赵敏吐气如兰，笑意更浓也更甜。让哥哥买了羊肉带回来你吃。Void Say (object sender, EventArgs e)