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In TCP implementation, when receiving the SYN request from the client, the server needs to reply the SYN + ACK packet to the client, and the client also needs to send the confirmation packet to the server. Usually, the initial serial number of the server is calculated by the server according to certain rules or adopts random numbers. However, in SYN cookies, the initial serial number of the server is obtained by hash operation and encryption of the client IP address, client port, server IP address, server port and other security values, which is called cookie. When the server suffers from SYN attack and makes the backlog queue full, the server does not reject the new SYN request, but replies the cookie (SYN serial number of the reply packet) to the client. If it receives the ACK packet from the client, the server subtracts 1 from the ACK serial number of the client to obtain the cookie comparison value, and performs a hash operation on the above elements to see if it is equal to the cookie. If equal, complete the three-way handshake directly (Note: At this time, you don't need to check whether this connection belongs to the backlog queue).The International Basketball Association (FIBA) has a 40-minute match, divided into the first half and the second half, each with 20 minutes.影片讲述了一位为找寻梦想来到大都市的高帅，阴差阳错的卷入了一桩富豪谋杀案的故事。片中笨拙搞笑的小偷、高傲帅气的富二代、美丽清纯的女护士、不择手段的黑帮组织轮番登场，因为一个古玺将原本生活中没有交集的人物交织在一起。突然消失的古玺、被暗杀的富豪、矛头都指向高帅，凶手是否另有其人？冥冥之中又是否暗藏玄机。故事不断的推进，古玺的背后隐藏着巨大的玄机，最终将会现出惊人的真相。小葱对他丢了个嘲笑的眼光，然后朝娘努努嘴。因个人理念的巨大差异，女强人马思雅与丈夫边册的婚姻渐渐走到尽头。女儿边贵知（岑丽香 饰）的补习师姐苏眉（胡定欣 饰）的介入，使他们最终离婚收场。边册迎娶苏眉三年后，便在一场车祸中丧生。苏眉继承边册遗愿，开设了一家精品咖啡店，希望向客人传达丈夫生前一直提倡的“慢活”理念。单亲爸爸鲍址堤（黄宗泽 饰）原是一家大公司员工餐厅的水吧仔，被边贵知投诉而失业。经室友苏晰的介绍，鲍址堤到苏眉的咖啡厅工作。谁料就此遇上三位关系复杂又麻烦多多的女店主——边贵知、苏眉以及马思雅。咖啡店的经营困难重重，这段历程能否像品味咖啡一样，苦涩过后，有苦尽甘来的一日？Episode 3