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Write_plt=elf. Symbols ['write']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.这外国使团来了，像黄豆啊，杨子他们，都忙。Similar Events郑氏微微一笑，道：你能明白就好。现在见到本人了，都不约而同地打量着，看看这个韩信到底有何不同之处，竟然让萧丞相如此念道，还不顾黑夜赶来追寻。