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Article 24 Towing and pushingThe first packet discarding scheme will have a slight impact on the user experience, because discarding the first packet retransmission will increase the response time of the service. In view of this, a better TCP Proxy scheme has been developed. All SYN data messages are accepted by the cleaning equipment and processed according to the SYN Cookie scheme. The IP address that successfully established the TCP three-way handshake with the device is determined to be a legitimate user to join the white list. The device disguises the real client IP address, completes the three-way handshake with the real server, and then forwards the data. However, if there is no IP address that shakes hands with the device three times within the specified time, it is determined that the malicious IP address is blocked for a certain period of time. In addition to SYN Cookie combined with TCP Proxy, the cleaning equipment also has the ability to detect a variety of abnormal TCP flag bit packets, and identifies normal access and malicious behavior by returning unexpected responses to SYN messages to test client responses.泰剧《第二次》The soldier who flushed him later blamed himself. I also advised the young man that there was no way out. No one wanted to do this, but there was really no way out. "又名《日出东方2015》，讲述一对亲生兄弟分别成为警察和黑帮之后，亲情、友情、爱情如何继续的故事。我就是好奇那个爱丽丝素颜到底怎么样？听到程小明的话，周围几个男性眼睛都亮了起来。tvN独幕剧2020 十部