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And firewall functionality for packet filteringReflection attack is also called amplification attack. This kind of attack is mainly based on UDP protocol. Common attack types include NTP, DNS, etc. Generally, the traffic of request response is much larger than the traffic of request itself. Attackers can create large-scale traffic sources with small traffic bandwidth through the characteristic that traffic is enlarged, thus launching attacks on targets. Reflective attacks are not strictly a kind of attacks. They only use the business characteristics of certain services to launch Flood attacks at a lower cost. The detailed schematic diagram is as follows:CW已续订《圣女简恩》第三季。[2]这季将讲到原作小说第5-9本的内容，也将“比第一季更复杂、野心更大”。紧接上季结尾，三姐弟被银行家Poe寄存在普鲁弗洛克预备学校，等待合适监护人，他们会遇见奇葩的同学Carmelita Spats。而尼尔·帕特里克·哈里斯饰演的大坏蛋欧拉夫伯爵，会伪装成欧洲拍卖商Günther来到学校。故而立即挥剑砍杀，一交手才知，盗匪并非一群乌合之众，而是训练有素。