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　　莫名其妙地突然到了1964年的东京，正说着，翘儿端着茶具过来放在圆桌上，俯身备茶。The overview of Web security that I shared not long ago has received extensive attention, which shows that everyone is still very concerned about Web security. Therefore, Muke will introduce common Web attack methods and corresponding prevention strategies one after another. This issue introduces DoS and its family.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.　　这个故事是年轻一代们把人生最辉煌的时节尽情地爆发在无边无际的大海上、白色沙滩上的有关梦、浪漫和热情的白皮书。让人难以忘怀的心动，回味一辈子的初吻，勇敢的挑战，伤心的离别，无奈的错过，没有预期的等待……严世藩亦无任何避讳，就如此召胡宗宪入房。禁断之地“阿卡斯提亚基地”在那存在着能够动摇这世界的“危险的书籍”，某日却被不知名的家伙解开了封印，散落四处的书籍，引领者“炎之剑士”神山飞羽真和"全开凯撒"五色田介人来到了彼此的世界中。