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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.正在叹息的时候，张良说道：前日见到尹旭，他说有办法助汉王出蜀中，却不知是何办法？刘邦眼中闪过一丝神采，显然被这个消息诱惑了，尹旭的本事和远见是有目共睹的。至于牺牲一个知县，好像并不那么重要。人见人爱的聪明女白领本来有个稳定的男朋友，谁知就在庆祝升职的当晚……什么？竟然有个和我长得一模一样的女孩！她还救了我！……我为了感谢女孩给了自己的名片……谁知“双面名媛”出现了……与将贵（柄本佑饰）一起与父亲·海江田（石桥凌饰）相对，白夜知道了自己出生的秘密，获得了自由。高森综合医院在院长真壁（小手伸也饰）的领导下，恢复了往日的活力，白夜也在CDT工作，为了实现与去世的前院长严（石坂浩二饰）的约定，以医生为目标而努力学习。该剧讲述了两个性格迥异，生活环境完全不同的女孩本无任何交集，直到某一个晚上，同在异地的两人阴差阳错坐上同一辆旅行大巴，命运将他们连接到了一起。陈文羽声音顿了一下，说道：那本小说也是陈启写的，电视剧也是陈启投资的。