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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.板栗忍笑，吩咐道：传令下去：明早四更起，五鼓出发。By clicking the check box on the page, When selected, add an attribute isflag, Delete the attribute isflag when it is not checked, And then a delay of 2 seconds, After 2 seconds, re-judge the ID on the attribute of ISFLAG in all check boxes on the page and store it in an array. Then the proxy function calls the method of the ontology function to send all the ID delayed for 2 seconds to the ontology method at one time. The ontology method can obtain all the ID and send AJAX request to the server. In this way, the request pressure of the server is relatively reduced.Step 4: Final Implementation Means后来看情形不对，只见敌人越来越多，都飞蛾扑火般朝着这座山奔来，心里大惊：这样下去，他们还能逃得出去吗？往山下跑。根据大仲马的著名小说《基督山伯爵》（TheCountofMonteCristo）改编，故事发生在现代，主人公也由男性改为女性。该剧描述一个名叫EmilyThorne（EmilyVanCamp扮演）的神秘女人来到富人云集的汉普顿，租下一栋靠海的房子，对外宣称自己是来度夏的。她很快赢得了邻居的信任。但他们都不知道，这个女人所做的每一件事都有目的——她要让多年前使其家破人亡的Grayson家族血债血偿。听说他杀了官兵做了盗匪？那如今这些人岂不是都是盗匪？看着明晃晃的长剑，围围观的百姓有些害怕，赶紧四散着离开。