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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.Okay, I haven't passed 132 yet.SingleTop"The stars in the sky are really beautiful　　韩午阳和女友非常相爱、即将结婚，却没想到女友在他眼前因车祸爆炸身亡。The implementation of MDT decision-making in clinical practice should be monitored.