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A fundamental and universal problem closely related to this aspect is related to the use of open DNS parser to launch DDoS attacks against Switzerland, an anti-spam organization. The open parser does not validate the IP address of the sender of the packet before sending back the DNS reply. Therefore, after the attacker deceives the victim's IP address, he can send a large amount of attack traffic to the victim, and the ratio of attack traffic to request traffic reaches 100: 1. DNS amplification attacks such as these have recently been used by hacker activists, blackmailers and blacklisted website hosts with great success.督察戴安娜（宣萱 饰）一直安逸于档案管理的后勤岗位，因缘际会跟元祖级陀枪师姐陈三元（滕丽名 饰）、飞虎队男神蒙汉森（陈豪 饰）合力破案后，被上司韦展超（许绍雄 饰）安排加入悬案小组，与一班各有「特色」的警员，在汉森带领下追查外界不关注的悬案。汉森不满安娜而互相斗法，直至揭露安娜因曾被胁持而恐惧用枪，反令二人擦出爱火花！安娜重遇多年前惨遭灭门的补习学生刘达华（罗子溢 饰），他却加入了黑道……在感情与内疚推动下，安娜能否拿回手枪重新振作，成就新一代的「陀枪师姐」？FOCUS FocusJQuery code is usually placed in the event handling method in the < head > section:不是花中偏爱菊，此花开尽更无花。一战德军王牌飞行员“红男爵”Manfred von Richthofen的故事。 他是一名德国飞行员，被称为王牌中的王牌（ace of aces）。他也是战斗机联队指挥官和第一次世界大战击落最多敌机的的战斗机王牌，共击落80架敌机之多。2. Arrow Rain and Arrow Explosion Mechanism