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The attacker first completes the three-way handshake to establish the connection, but in the last ACK reply of the three-way handshake, the TCP window size is set to 0, and then a data request is made. When the attack target sends the request result to the attacker, it stops the data transmission when it finds that the TCP window size is 0, and sends out a TCP window detection packet to ask the attacker if the TCP window has been updated. Since the attacker will not update the window size, the attack target will always maintain the TCP connection and wait for the data to be sent, and continuously carry out TCP window size detection. When the number of controlled hosts in the botnet is large, Target's connection table will gradually be exhausted, resulting in denial of service.He has received a good education and a good family background, but he is slow to treat his feelings. He was very tough in front of his boyfriend, but he belonged to a paper tiger.最后菩萨身死，唐王毁其魂魄，挫其金身，悬其尸于墙头，以示天下，凡有信佛者杀无赦。该剧改编自《多田便利屋》《编舟记》作者三浦紫苑的同名小说，原著是纪念谷崎润一郎《细雪》的特别小说。故事讲述在东京杉并区一幢古老的西式建筑中，住着牧田家母女俩（妈妈鹤代跟女儿佐知），以及两位房客（雪乃、多惠美），表现她们4人对于爱情、人生的态度。中谷美纪饰演刺绣老师牧田佐知，已到适婚年龄却仍然单身；吉冈里帆饰演OL上野多惠美；永作博美饰演佐知的友人、多惠美的前辈，毒舌的谷山雪乃；宫本信子饰演佐知的母亲牧田鹤代。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。老威被越来越多的人关注，这一次他几乎成名，却又一次和机遇擦肩而过，他只惆怅了两分钟，又开始追逐自己的新生活……