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In the termination phase of TCP connection, four interactions with FIN messages are usually used to cut off the connection with the client and the server. However, when one of the client or the server is abnormal, it will not be able to complete four waves to terminate the connection. At this time, RST messages will be used to forcibly interrupt the connection.一位知天命的老者走了过来，问道：绿萝，他怎么样？名唤绿萝的少女回答道：箭镞已经取出，好在并未伤及脏腑要害。Drawing a mind map allows you to actively think, sum up and express the information you accept or learn. Naturally, it is better to master the effect. It is only expressed in the form of images, branches and keywords of the mind map, which further increases the interest and so on.张大栓都听傻了，呆呆地看了皇帝好一会，才猛拍手掌，对郑长河道：我就说嘛，皇上是好皇上。村中一霸“天狼”谢天啸和铁血打手“狗哥”王凯二人厮混长大，整日幻想着有朝一日能出去闯荡江湖。因为天啸遭遇家中变故，天啸和狗哥决定进城闯荡。初来城里，二人就被江湖骗子圈圈摆了一道，后三人不打不相识，结为伙伴，并在圈圈的帮助下走上了棒棒生涯。在做棒棒的同时，天啸和狗哥先后结识了老黄、小渝、祥叔、小阳等形形色色的人物，也在不经意间，天狗二人触碰到码头幕后老板龙二的利益并在几次冲突中与之结下梁子。天狗二人成长的同时，一场以码头为中心的江湖大风暴即将拉开序幕。ACK reflection attack is a common reflection attack technique, Using TCP three-way handshake, When the source IP address of SYN is disguised as Target's IP and the transmitter try to establish TCP connection, the reflector's response will be directly forwarded to Target. In the process of attack, a large number of ACK responses responded by the reflector will be sent to Target by controlling a large number of controlled hosts to perform the clock operation, thus occupying Target's network bandwidth resources and causing denial of service.