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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.61. X.X.153U=Up d=Down f=Front b=Rear df=Front Down db=Rear Down db=Rear Down uf=Front Down uf=Front Down uf=Front Down uf=Front Down uf=Front Down uf=Front Down uf=Front Down 1=Key 1 2=Key 2 3=Key 3 4=Key 4 5=Key 5 6=Key 6 s=Start, = There is a pause in the next frameStep 4: Release the startup key/power key, and the HOME key will not be put on for 15 seconds. This step can enter DFU. At this time, the mobile phone is black screen, but iTunes can recognize it.黄连哼了一声道：不错。因为父母离婚，川内洲（梶裕贵 配音）自小与祖父一起生活。祖父去世那天，他一个人跑到海边哭泣，一不小心失足落水。洲被一个迷之美男子救了起来，却发现对方是一条人鱼！洲把人鱼带回家，还帮他改名为“ISAKI”（绿川光 配音）。因为与人 鱼 朝夕相处，曾经寂寞悲伤的洲渐渐地开朗起来，跟学校同学的关系也亲密起来。不久后，随着文化祭的临近，洲的学校生活越发忙碌充实起来。常常独自一人在家守候的人鱼伊佐木，觉得洲已经不再需要自己了。一天夜里，当洲回到家中，他发现人鱼不见了……本片根据法国经典文学作品《大象巴巴》改编，该片讲述的是大象巴巴和他的外孙小象巴豆的故事。8岁的小象巴豆和他的伙伴们在茂密丛林中历险，身为祖父和 国王的大象巴巴担负看护和指导小象成长的重任，同时要解决新老两代之间的沟通问题。该动画剧适合孩子，也适合长辈，告诉他们差异、认同和牢固的家庭价值观的重要性。