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A TCP connection is a quad, and a connection is uniquely determined by the source IP, the source port, the destination IP and the destination port. Therefore, if C wants to forge the packet from A to B, it should fill in the above-mentioned IP header and TCP header with the source IP, source port, target IP and target port. Here B is the server, IP and port are open, A is the target we want to attack, IP certainly knows, but the source port of A is not clear, because it may be randomly generated by A. Of course, if we can find out the rule of generating source port for common OS such as Windows and Linux, we can still do it. In addition, we can step on the connection port of Car A through a large number of controlled hosts.Updated December 16　　大唐边军宁缺带着小侍女桑桑来到帝都，调查十三年前灭门奇冤，一番努力考入至高学府书院，步入世间强者行列。荒人南迁，带来七卷天书的秘密，传说中的永夜将至，权倾天下的西陵神殿、神秘消逝的荒原魔宗、暗流涌动的燕唐边境、烂柯寺的血雨腥风，宁缺与桑桑卷入了昊天倾覆人间的劫难。世间动荡、英雄辈出，夫子、书院兄弟、书痴、道痴、花痴，隆庆皇子、知守观主、皇帝、将军、公主、各路修行强者、乃至普通的军人、少年，这注定是一个平凡人谱写的不平凡事迹，是世人对不公平命运吹响的战斗号角，是一个关于爱情、友情和信念的故事。然后便是和段神刀争锋武侠第一人。Sustainable win-win cooperation一个两岁的孩子雷达在1998年的某一天走失，父亲雷泽宽（刘德华饰）从此开始了长达十四年的寻子之路，途中历尽艰辛，偶然遇到了四岁时被拐的修车小伙曾帅（井柏然饰），两人一同踏上寻亲之路，途中两人建立了父子般的情谊。普密斯很难决定是选择欲望还是职责，同时警方会处理相关手续。