日本三级性交片

她绞尽脑汁想安慰他们。于是将盔甲穿戴整齐，在正午人最多的时候，飞身跃上高台。只为向首辅摇尾乞怜就出此下策？笑话。他不过是说句客套话而已，郑长河等人竟然照做了。National Medical Security Bureau范依兰听到之后，这才恍然，原来还有这么多的缘故。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.