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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.Yu Xiuhua suffered from cerebral palsy due to birth failure and lack of oxygen, which made him unable to move and slurred his speech. After graduating from high school, Yu Xiuhua started writing poems at home. On January 28, 2015, Yu Xiuhua was elected Vice Chairman of Hubei Zhongxiang Writers Association.农村姑娘田枣考上了大学，来到了省城，为陪伴灵芝上学未婚夫福根也进了城。为了实现明星梦的元宝、一直想发大财的六哥、羡慕城里人生活的丽丽、消极逃避责任的胡哥等怀揣不同的目地都汇聚到了省城，开始了他们漫长而艰辛的城市打工生涯。面对眼花缭乱的新生活，福根始终坚守自己的勤劳、善良和诚实，与田枣的情感却分分合合；元宝为了实现自己的梦想不惜牺牲了自己的爱情；六哥的生活起起落落很是艰辛；丽丽为过上城里人的生活付出了巨大的代价，胡哥也在福根的劝说下勇于承担责任。最终，福根用他可爱的傻劲与无限的真诚感动了这座城市，感动了许许多多执迷不悟的人们，在城里闯出了一片天地并赢回了属于自己的爱情。Position 24 Attack% 88%公元一九九六年十一月，一场百年未见的大地震袭击包头后，牛玉儒临危受命，就任包头市委副书记、代市长。上任当天，牛玉儒便直接来到受灾最严重的萨乌齐村，发现村民们依旧住在破烂的屋子里，未能搬进新房。这令他惊愕，他力排众议，追查下去，发现这是天成房地产公司玩乎职守，挪用救济款，致使工程半路停工。牛玉儒顿时大为愤怒，严令主管城建的尤副市长、城建局副局长江滨立刻解决此事，不得有误。同时，坚守在村中，工作在第一线的城建局规划科科长宋中华，给牛玉儒留下了深刻的印象。牛玉儒来到市政府，住在简易的单身筒子楼里，和自己的秘书栗要成住了个对门。面对包头百废俱兴的破烂局面，牛玉儒彻夜难眠、思绪万千，经过多次考察和研究，制定了一套切实可行的方案：要变坏事为好事，利用地震这个契机，彻底重建包头，把它变成草原上的一颗明珠。牛玉儒在市政府会议上提出了自己的草案，却遭到以尤副市长为首的思想保守派们的强烈抵制。他们担心重建会处处捉襟见肘，到头来哪儿也建不好，反而会让老百姓骂娘。包头重建，城中村是重中之重。A year later, a friend of Xiaobian's came to Nagoya to play and asked Xiaobian about the scenic spots recommended by Xiaobian. Xiaobian said this sentence without thinking: