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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.I. Collision Inspection of BIM Technology in Metro Station Comprehensive Pipelines《解密档案》是由俞钟导演，丁海峰、徐筠等主演的28集电视连续剧。从题材上看，这是一部谍战剧，但在剧情上，它又是一部情感戏，导演俞钟评价这是一部男性观众和女性观众都适合观看的电视剧。原来，张大栓也听人说了下塘集赛龙舟的事。刘邦将探寻的目光落到张良身上，希望子房先生能有个提议。翰林艺高奇幻网剧。Some of the resources of this site come from the Internet. For the purpose of transmitting more information, the copyright of this site reprints belongs to the original author or the source organization. If the reprinted manuscript involves copyright issues, please contact us.