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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.老板娘恢复了之前的高傲。20,000 Yuan Guo Yujie, Editor of Liu Ziheng's "Imperfect Victims: Recent Situation of Wushan Child Brides and Sisters"In response to this problem, Osaka Weaving House has developed a "small black trousers". Through a special process, thick pantyhose containing five layers of fabric is made into a "tapered trouser leg" that can be stretched and gradually changed according to the shape of human legs. After delamination, the feet become very light and thin. This product also has 3 national patents and will soon become a hot item.说完，就要接过他手中的铁叉子。