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If an attacker sends SYN packets quickly with their own undisguised IP address, this is a so-called direct attack. This attack is very easy to implement because it does not involve spoofing or modifying packets below the user layer of the attacker's operating system. For example, he can simply send many TCP connection requests to implement this attack. However, for this attack to work, the attacker must also prevent his system from responding to SYN-ACK packets because of any ACK, RST, or ICMP (Internet? Control? Message? Protocol) will cause the server to skip the SYN-RECEIVED state (go to the next state) and remove the TCB (because the connection has been successfully established or recycled). Attackers can do this by setting firewall rules, causing the firewall to block all packets (except SYN) to reach the server, or causing the firewall to block all incoming packets so that SYN-ACK packets are discarded before reaching the local TCP handler.年轻的白领小艾业绩持续垫底，生活一团乱麻。网络上的一个“穿越贴”，勾起了她回到五年前的强烈愿望，QQ里一位有着机器猫头像的好友阿蒙答应了她重回五年前的要求。通过阿蒙工作室里一件神迷的仪器和软件，阿蒙帮小艾制订出了重回从前的方案。果然，小艾后来一天天接近着自己的愿望。就在她将要回到二十岁的前一天，阿蒙告诉她，神迷仪器和软件根本不存在，随后不辞而别。半年后，阿蒙现身，揭开了这背后的一切。2-3;在他的广告公司破产后，一位负债累累的菲拉特在一次瑜伽静修会上爱上了一位歌手，并加入了她的自我实现之旅。第二步，若是要打，先上铳，不急着发，逼上去，打一铳就撤。不是她们不相信黎章的能力，而是她们私心认为，还是男对男、女对女比较好，让大哥跟青鸾公主对阵，肯定会吃大亏的——女人除了武力威胁外，最具威胁的就是哄人的手段。2912