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只见他双目炯炯有神，凝神细看，嘴角露出一丝淡淡的笑意。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.Variable value:.; % JAVA_HOME%\ lib\ dt.jar; % JAVA_HOME%\ lib\ tools. Jar;在家的时候，Daddy一向跟我说中文的。Attack卢卡斯影业的最新动画电影《仲夏夜魔法》（STRANGE MAGIC，暂定名）将于2015年1月23日上映。这是一个讲述妖精世界童话故事的动画音乐剧。