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The 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.姊妹们在小葱闺房内守第二关，要考较大姐夫。1. The functions of a class need to be extended."What happened later?" I knew the story was far from over, so I couldn't wait to ask him.唐甜甜、阮绵绵、高晓晓、崔梅子等四人是某音乐学院同一宿舍的大四女生，在这大学时代最后的一个冬季，将注定是不平静的，也会留给她们永不磨灭的友情记忆。《摩登家庭》是由二十世纪福克斯电影公司拍摄，美国广播公司购买并在美国播出的电视剧。故事主要围绕三个有关联的美国家庭展开，一个“看不见”的摄像师扛着摄像机记录他们生活中的点点滴滴。第6季中故事以独特的视角，讲述了极具代表的三个典型的美国家庭复杂而混乱的日常生活和情感世界。在第6季中还会有很多演员加入。伴随着三个家庭点滴的成长与变化，相信这部剧集还将走得更远。But then again, It is not entirely true to say that the fire cut-off at position 142 is exactly the same as that at position 169. Because in addition to the large consumption of ammunition, There is also a major reason: It was at that time that some comrades of the reconnaissance troops found out that the Vietnamese army had failed to sneak attack. Pull a large number of large caliber artillery prepared in advance out of the woods, Prepare to support the infantry that stormed various positions. After this message is delivered to the rear, The first task of our artillery group changed from blocking the Vietnamese attack to suppressing and destroying the Vietnamese artillery group. The two sides started an artillery battle over this, Although it is said that our artillery is not only in terms of performance but also in terms of quantity, Both of them had an overwhelming advantage, coupled with the precise positioning of the comrades of the reconnaissance troops, so it took 20 minutes to complete the complete elimination of the Vietnamese artillery group. Later, I also saw in a military magazine that when the artillery battle was the most intense, some artillery comrades who pulled the bolt swollen their arms. It is conceivable how fierce the fight was. " Li Haixin said.