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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.陈娟的奶奶煮饭点柴火时不慎引燃了周围柴草火势迅速蔓延，正在不远处走访的村妇联刘主任急忙带人奔跑过来……3. SingleTask6. Press and hold the two keys at the same time for 10 seconds. (At this time, if the Apple logo is displayed on the mobile phone screen, it means that you have pressed the key for too long and need to start over.)You can download an official version of WeChat, then add "Benhack" attention to WeChat, and then enter the coexistence version of WeChat to download the coexistence version.只可惜因为种种缘故，没有机会罢了。她忙将周菡的家信交给一个军士，嘱咐他送去周家，亲交到周父手上，然后率领那些新军和大夫赶去眉山七里滩。