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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.《攻爆基丁》是由宋城娱乐与LOOKER录客联合出品的青春悬疑性别穿越喜剧，经过了为期半年的编创和排练。剧情大胆创新，通过性别穿越——变身这一荒诞的契机，描述了4名因神秘力量而被变身为美少女的男大学生，穿越到“宋城”这一平行空间，为了梦想和生存成为女团练习生而引发的爆笑囧事。全剧笑中带泪，向受众传递女团成长过程中的艰辛与汗水、友谊与成长，展示了当代年轻人身上的真善美和勇敢追梦、不畏艰难的正能量。该剧的内容制作团队由具备互联网基因的LOOKER录客导演品牌HuSee团队担任，更为网剧的质量保驾护航。　　瑞切尔在这里刚刚找到一份新工作：新闻记者马克思·洛克（西蒙·贝克 饰）的助手，在一桩新闻事件的调查中，瑞切尔在警察局档案室中发现了一个非常神秘的“X档案”，这是一个年轻女孩的离奇死亡案，案件至今未破，现场的证据只有一盘神秘的录影带。《一念永恒》第二季将于7月20日播出！动画改编自网络文学作家耳根同名小说，由企鹅影视、视美影业联合出品，平凡少年白小纯为追求长生之法，一次次点燃仙香召唤仙人却屡遭雷劈。直到引路人李青候掌座的出现…国漫巨制沙雕修仙番，承包你这个夏天的笑点！An activity, a process, an unforgettable memory. I think every member of our team has gained a lot from this activity. The infinite past takes this moment as its destination. The infinite future starts at this moment. At this moment, for me, this will also be another starting point of my life, where I will carry this perfect memory, set off with emotion and thinking, explore a broader long river of life, and devote myself to the future work construction! Although the time of this practical activity is short, the enlightenment it leaves us is profound and long-term, and it is a solid step on our life road. Through my attentive participation in social practice activities, Knowing the society, realizing my social position, clarifying my historical mission and stimulating my enthusiasm for learning, I will constantly adjust and perfect my knowledge structure, overcome all kinds of setbacks on the way forward, exercise my will and perseverance, and make preparations for adapting to future work. After the movement, each of us was filled with smiles and could see that the activity was * over!".