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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).要是尹旭也这么对待武涉，寡人的面子该往哪里搁？项羽对于武涉先生的擅离职守没有意见。　　顶尖法学院发生骇人事件，强硬的教授和胸怀大志的学生们面临考验：法律究竟能否伸张正义？因为一场娃娃亲，苏小小和许弋尘开始了隐婚之旅，在随后的相处中渐生情愫，可还有许多的波折等着他们，该剧讲述了青梅竹马的三人，纠结、阴谋、爱情、守护、羁绊等诸多感情交织混杂在一起的故事。在一场他们爱她，她先爱他，再发现她真正爱的是他而很多人也爱着他的纠结情感中，跌宕起伏，霸道总裁与青梅竹马的隐婚之途历经磨难后最终收获爱情1940年，作为反法西斯战争最重要战场之一的中国战场，进入到中日双方相持阶段。为加快对中国的侵略，日军正秘密策划一场骇人听闻的细菌战，为此日军决定加快细菌武器的研究。只身从南京大屠杀逃生的医生金深水，流落到日军设立的“保甲模范区”桃花镇。金深水无意中救了生化专家白大怡，不料却是一系列波谲云诡事件的开端。桃花镇歌舞升平的面纱被逐渐掀开，惨无人道的细菌人体实验、恐怖致命的人脑控制药物实验等一一浮出水面。在党组织的指导下，金深水巧妙地周旋于狡猾如狐的敌人中，几度出生入死。最终，在对日军同样有着国仇家恨的女医生林婴婴以生命为代价的掩护下，金深水联合新四军、游击队，彻底消灭了桃花镇的日军，同时揭露了日军利用人体进行细菌实验的种种罪行。金深水更从一个普通爱国青年成长为一个优秀共产党员。If you have a good understanding of the above classification.The park is quite large and the environment is good. The hotel is an independent park and relatively quiet.