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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.10-Rhizoma　　云飞在四处打听之下，知其弟云翔已成萧家杀父仇人，因此，只得埋名隐姓，暗中相助萧助萧家五姐弟。雨凤在云飞的真心相待下，慢慢接受了云飞的感情。正当云飞准备对雨凤坦陈一切时，云翔突然出现，揭穿了云飞的身份，雨凤对云飞的万千爱意顿时化为无尽的怨恨。雨凤在痛不欲生中决心一死谢罪，情急之中，云飞反被雨凤杀成重伤。Lins Concubine 01Ji Minjia此时日薄西山，正是垂幕时，子婴抬头看向远处。