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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.丝丽姆（詹妮弗洛佩兹饰）是个幸福的女人，她住在郊外的豪华大屋里，有一个英俊并且富有的丈夫米奇（比利·坎贝尔饰），还有个活泼可爱的五岁女儿，本来她也认为自己找到了美满幸福的生活，但渐渐却发现自己的丈夫表面上和蔼可亲，背地里竟然是个变态的虐待狂，本来为了年幼的女儿丝丽姆只能忍辱偷生，但数次残酷的折磨使丝丽姆身心倍受创伤，忍无可忍之下决定带着女儿逃亡，去投奔以前的男友乔（丹·福特..."So, the death rate of this flying insect is quite high, have you been stung? Did your protective gear play a role in resisting their attacks?" I asked.摄影师徐然在一次拍摄中意外经历车祸后失明，遭到女友谢薇薇的抛弃，在他对生活失去信心，心灰意冷的时候遇见了李佳佳，李佳佳一直照顾着徐然帮助他重拾生活的信心，在这个过程中她也渐渐喜欢上了徐然，李佳佳不顾家人的反对毅然的选择和双目失明的徐然在一起。两人一起在残疾人协会做义工，不料徐然再次被失控的推车撞到，这次却又因祸得福恢复了视力，而这时徐然发现李佳佳离他而去，原来李佳佳因为自己儿时脸上留下的疤痕觉得自己配不上徐然，虽然两人爱情历经种种困难，但最终还是走到了一起。被续订第二季的CBS喜剧《退休警察烦事多 Kevin Can Wait》在6月时有大人事变动，在剧中饰演主角Kevin（Kevin James饰）妻子Donna的Erinn Hayes宣布离开剧组，不会回归第二季。CBS宣布Donna一角会在剧中去世，第二季一开始会有一段时间跳跃。而剧组把曾在《后中之王 The King of Queens》与Kevin James合作过，于首季尾登场的Leah Remini提升为第二季常规兼女主。