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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.《佛本是道》上架销售的第二天，首章订阅就已经高达四十多万。现如今有了他们的到来，无论做什么事情都会更有底气，更有信心。女子放下手里的针，说道。萧何带人出去了骑快马抄近道去的，其他不可能抢先更快的。? The industrial Internet proposed by GE is a typical representative of the "Internet plus Industry" model in the United States. GE's innovation is mainly reflected in three aspects: first, customer needs, second, technical feasibility, third, commercial feasibility, and the three aspects complement each other. The basis of its re-industrialization is business restructuring, focusing on the integration of digital business and physical business, resulting in new business models, new industrial processes, new raw materials and even new manufacturing production methods.一九三七年夏秋，“八–一三”抗战于上海爆发，以周恩来为首的中共代表团也来到了上海。黄江河、余秀英和李涛都是中共代表团里精明强干的年轻干部，受到周恩来的器重。在战场上，黄江河结识了江南救护队的梅青小姐，彼此留下了深刻印象。周恩来提出将南方各省红军游击队改编为抗日武装，遭到了蒋介石的抵触。这时叶挺流亡归来，周恩来希望叶挺出面改编和领导这支部队，叶挺高兴地接受了这个建议。应江南救护队之请，周恩来派李涛前去担任队长。余秀英对黄江河早已暗生情愫，黄江河同梅青的亲密接触引起了她的不快。中共中央与南方各省游击队早已失去联系，周恩来派黄江河和余秀英前往江西寻找游击队的领导人项英和陈毅。临行前，黄江河去向梅青告别，两人依依不舍