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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.故事发生在北平，叙述的是从1937年到1948年北平解放前夕两代人的生活经历。1937年，卢沟桥的炮声点燃了中华民族的抗日烽火，刚刚走出大学校的青年路童谣、赵大勇、吴霞等为挽救民族危亡和北平人民一齐投入抗日救亡的工作中。北平沦陷后，几个热血青年选择了不同的生活道路，童辛去了抗日前线；童谣结婚过着小日子；吴霞随家人到大后方避难。这还反了天。方智听了，也期盼地看着他。林聪动了下嘴角，无声微笑。：岩合光昭の猫步走世界~新西兰篇