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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.However, in the TV version, there was no corner when Huiye was young, and it should not be a six-way mode.L Quanzhou is the first and only 5A scenic spot, a must-visit landmark scenic spot!CBS续订《极速前进》第三十季。杨长帆看着眼前的几亩荒地，心下确实跃跃欲试：世伯胸怀宽广，不记恨侄儿上次失礼，侄儿便千恩万谢了，怎么好再要地。