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In order to use SYN? Cookies to calculate the SYN-ACK serial number (that is, SYN? Cookies), the host must first combine some local password bits, a data structure including IP address and TCP port number, SYN initial sequence number, and some index data identifying the password bits. An MD5 digest is generated on top of all the above bytes, and then some bits are truncated from the hash value to put it into the SYN-ACK sequence number. Since the size of the sequence number is about a quarter of the total hash value, this truncation is necessary, but usually at least 3 bytes of hash bits are used for verification, which means that there are still nearly 2 24 possibilities to guess and verify cookies without knowing the password bits. In order to send out the hash value, some bits of cookies will reduce the upper limit value of MSS (Maximum Segment Length) contained in SYN and affect the index bits that identify the native password bits in the hash value.　　5. Installing Vue这是一个发生在战国时代，五天四夜的故事。九一八事变前，日军进驻松花江畔的小镇，大肆清乡并屯、推行奴化教育。镇上的风云人物冯中岳、马万海率众进山，藏身于驻马岭。冯中岳、马万海虽然不敢公然与日军为敌，却也用尽方法与驻守的日军头领尾崎斗志斗勇，不断出奇招整治尾崎，打击日军的气焰。随后，在义勇军贺司令的感召下，冯、马两人率部加入东北抗联，协助主力部队炸毁军马场、阻截日军物资，大显抗日期间中国人民的智慧与团结。狡猾残忍的尾崎始终都没有停止追捕冯、马二人，在每次遭受两人的重创之后，便对中国百姓采取更加严酷的暴行。冯中岳、马万海虽然多次落入尾崎手中都巧妙逃脱，但两人一生挚爱的女人黑葡萄却为战胜尾崎献出了生命。最后，冯、马二人联手将尾崎彻底打垮，策马消失在白山黑水之间。