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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.小葱和秦淼便送他们出去。After communicating with relevant departments, on July 4, the practice team came to Fusheng Migrant Workers' Children's Expectation School under the high temperature. The school building is not as shabby as people think. Principal Li enthusiastically introduced the school's running situation and difficulties to the team members. The original school's old appearance changed thanks to the NBA "Basketball Without Borders" sponsored by Nokia.**Tinktura tincture曾经精神矍铄的老板为何日渐憔悴？怀揣梦想的年轻人，为何短短时间里变成浑水摸鱼的老油条？立志成为独角兽的有为影业，为何沦为一家青黄不接的广告公司？这一切究竟是人性的扭曲，还是职场道德的沦丧？欢迎走进《老板请自重》，探寻真相。JQuery code:手掌轻轻放在小腹之上，脸上满是幸福，带着几分母爱的光辉。