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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.她自己则在家等闺女，一切事跟闺女比都不重要。BBC高分治愈系喜剧，本系列共三季，每季六集。丈夫病逝，但生活还是要继续，痛失挚爱的Cathy不得不收拾好心情，坚强又孤独地适应没有爱人陪伴的日子。人间天使Cathy温柔可亲善解人意，然而她身边的亲戚一个比一个奇葩，令人啼笑皆非的新生活就此开始。　　因母亲患有心脏病并需住院接受治疗而加入帮派，并随载文一同行报仇大计的致国，在看到则易温和年迈的母亲（罗文姬饰）时不禁失去了想要报仇立功的斗志。很快，纸墨笔砚就位，沈悯芮轻巧点过了墨，提笔在纸前：你说吧，我写。The Almighty MatgaFrom March 1, 2009 in Heilongjiang, the subsidy for hygiene products for female employees was increased from 10 yuan to 20 yuan per person per month.