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In TCP protocol, messages arriving at the destination will enter the buffer of the TCP stack and will not be forwarded to the receiving system until the buffer is full. This is to minimize the number of times the system empties the buffer. However, the sender can force the receiving system to clear the contents of the buffer by sending a TCP message with a PSH flag of 1. The TCP PUSH + ACK attack, like the TCP SYN attack, aims to deplete the resources of the victim system. When an attacker sends TCP messages with PSH and ACK flags set to 1 to the Target host, these messages will cause the Target system to clear all TCP buffers (whether the buffers are full or not) and respond with an acknowledgement message. If this process is performed by a large number of controlled hosts, the system will not be able to process normal data, resulting in denial of service.宇宙中的神秘组织似乎对能源核感兴趣，然而五位超人在拯救星星球时失踪了，黑暗势力悄然来袭，谁能承担起守护能源核的重任？Test Class:不过尹旭一向是心里有数，大殿上站着的，尤其是今日这种何尝与谈论的问题，完全都是些信得过的人。这一系列故事发生在1959年漫长炎热的夏天，婚礼季节在剑桥郡格兰切斯特村如火如荼。这么快？陈启惊讶道