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In the process of DNS resolution, the client initiates a query request, and the DNS server may need to make additional queries to complete the resolution process and give a response, which will consume certain computing and network resources. If an attacker uses a large number of controlled hosts to continuously send resolution requests for different domain names, the cache of the DNS server will be continuously refreshed, and the failure of a large number of resolution requests to hit the cache will cause the DNS server to consume additional resources for iterative queries, which will greatly increase the resource consumption of the DNS server.11. Stocks are very expensive and have gone up a lot, which is not the reason why you refuse to buy or sell. He may rise even higher.The real threat lies in amplification attacks using reflection principles, In the network service protocol provided by the reflector, There needs to be an asymmetric amount of request and response data, The amount of response data needs to be greater than the amount of request data, The larger the ratio of the response data to the request data, the larger the amplification factor of the amplifier, and the more obvious the effect of consuming bandwidth resources caused by amplification attacks. However, the number deployed on the Internet is very small, so amplification using the network service cannot achieve a large flow and can only be used as an auxiliary means.被大章鱼吞下去的杰克船长进入了戴维·琼斯控制的“死界”。为了拯救杰克，威尔、伊丽莎白和女巫等一行人也来到了“死界”。找到杰克，逃出了世界尽头。而此时狡猾的卡特勒已经得到了戴维·琼斯的心脏，由此挟持戴维·琼斯，掌控所有的公海海盗，为东印度公司攫取利益。为了应对危难，各地海盗头目秘密集会，展开是否释放女海神，杀掉戴维·琼斯的争论。在平静的海面上，风雨将至，最终的对决即将展开。说起乡下的事，也是平静坦然的很，不见一点儿自卑惭愧。1871年的大火的故事。奥利里太太的虚构的故事,两个儿子(牛的主人开始火),一个一个流氓(权力)另一个律师(阿米奇)。最昂贵的电影之一的时间(180万美元)。The day after the experience, Mary got up and went to buy two clothes. For a long time after her illness, her wardrobe was all "black". She only wore black clothes, black trousers and black shoes, but that day in the shopping mall, she chose herself two skirts, one pure white and one color.