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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.8. Use the website contact form. Shoppers who contact you more often are more likely to buy your products.【幕后花絮】在中国历史上，没有任何一个女人比杨贵妃的故事更富浪漫情怀传奇色彩的了！唐朝玄宗年间，玉环少为乐师孤女，幸遇诗仙李白，两情相悦，欲结连理。然李白以天下为诗笺，居无定所浪迹天涯；而玉环苦于颠沛流离，寻觅安定生活，一情一理，情理难兼，剪不断理还乱纠结一生。玉环偶遇唐玄宗一见钟情，却为救养父，被迫嫁为寿王妃，唐玄宗视玉环为天下至宝，煞费苦心使玉环历经四年寿王妃、五年太真妃的传奇遭遇，历尽磨难终成贵妃，这是贵妃秘史中最动人心魄的挚爱真情！一日牡丹盛开，玉环出观赏花，玄宗专为玉环大排牡丹宴，李白前来助兴，因爱生恨的寿王也密藏匕首而来。李白误以为玉环已委身玄宗，情绪失控，醉书《清平乐》三章，讽玉环为“赵飞燕”。而寿王怀刃入观刺杀玉环，竟是玄宗舍身受刃！玉环终于感受到玄宗的炽烈真情...就因为她是公主，顾将军不敢放了她，也要将她押解进京。　　拥有状元之才的风流才子柳士杰琴棋书画、诗词歌赋乃至三教九流无一不精，惹得方圆百里的姑娘们为之心猿意马，身前身后美女相随无数。偏偏士杰心高气傲，一不屑进京赶考，二不娶胭脂俗粉。一心过着逍遥自在的田园生活。于是方圆百里的姑娘为拴住士杰之心，可谓煞费苦心。