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F4从英德学院毕业了。道明寺邀杉菜一起到西班牙毕业旅行，但两人却又吵架赌气，眼看巴塞隆纳之行即将泡汤，F3于是用计将这对别扭的情侣送往巴塞隆纳，为两人制造机会。受到花泽类“秘密信函”启发的道明寺，买下杉菜在市集看中的一只流星戒指，暗中安排一切，准备在巴塞隆纳近郊一座有著幸福传说的教堂里向杉菜求婚，不料，途中却发生一场意外，留下杉菜一人在教堂前苦苦等候。随著时间流逝，道明寺的无故失踪让杉菜开始感到不安，心慌意乱的她找来在西班牙留学的藤堂静帮忙，杉菜和藤堂静发现了花泽类交给道明寺的“秘密信函”，信中花泽类希望道明寺能在那座教堂里跟杉菜求婚，替他完成和藤堂静未能实现的传说，杉菜和藤堂静读完信后各自感伤。此时，F3亦从台湾赶来巴塞隆纳。1665年，由夏洛特·柯克（Charlotte Kirk）和爱德华·埃弗斯·史威德尔（Edward Evers-Swindell）共同撰写，将恐怖电影明星柯克（Kirk）饰演伊夫琳·哈弗斯托克（Evelyn Haverstock），其丈夫安德森（Anderson）自杀，在拒绝房东的举动后发现自己被错误地指控为巫术。Loading: Determine the file content type;原来是有这批廉价的穷鬼。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.We all know that computers have a certain security protection system. Through the security protection system, computers can detect certain abnormal viruses and give reminders and removals. The DDOS attacker achieves its goal by evading this protection system and carrying out a rejection attack on the computer, thus bringing the other computer into its own control.