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Compared with resource consumption attacks, service consumption attacks do not require too much traffic. They mainly carry out accurate fixed-point attacks according to the characteristics of services, such as CC of the Web, retrieval of data services, download of file services, etc. Such attacks are often not aimed at congesting traffic channels or protocol processing channels. They are busy situations in which the server always handles high-consumption services and thus cannot respond to normal services. The detailed schematic diagram is as follows:《马普尔小姐探案》第五季：白马酒店、名苑猎凶、蓝色天竺葵、破镜谋杀案。世界推理史上与波罗、福尔摩斯比肩的“安乐椅神探”——马普尔小姐隆重登场！目光慈祥，容颜清癯，银发如霜，小乡村里，安乐椅上，摇啊摇地编着白色羊毛衫——这么一位普普通通的老太太，怎么就成了推理史上声名显赫、令江湖恶棍闻风丧胆的乡村女神探？只能说，案件是复杂的，推理是简单的，世事是奇妙的。马普尔小姐的出现，几乎是在证明每个人——即便象我们这样的凡夫俗子，都可以轻易成为神探，只要你能象她一样具备两大断案法宝——惊人敏锐的观察力，以及对人性超级深刻的洞察力。当然，其实做不做神探都不打紧，夜半时分，寻把摇椅，倒杯茶，陪马普尔小姐坐着，看月光下，窗帘响处，凶手现形……一样过瘾十足。阿加莎克里斯蒂经典篇目全新改编，超豪华演出阵容，史上最强版本。该剧是根据真人真事改编的谍战故事，主人公连城从一名穷苦人成长为地下共产党人并潜伏在国民党内部，为中国的解放事业做出巨大贡献，他是目前已知历史上潜伏在国民党内部官衔最高的卧底。民国初年，军阀混战，哀鸿遍野。革命暗潮汹涌，国家亟待中兴。古城富商连步云义子连城，为报灭门深仇，独闯军营惩凶，凶手临死之际嫁祸连家宿敌韩志远才是惨案幕后指使。身在国军的韩家公子韩奎为澄清事实却遭同僚迫害，险些丧命。厌倦派系纷争的韩奎，与救命恩人红瑛一起加入共产党，逐渐成长为坚定的革命战士。而亡命天涯的连城，幸遇共产党员苏志丹点拨，从此踏上革命之路。“四一二”清共，连城舍命相救苏志丹；中原大战，连城单骑救主，保得蒋介石周全；抗战爆发，连城浴血疆场，台儿庄一役立下赫赫战功。九死一生的他，终于耀升蒋介石侍从室高级参谋，成为蒋介石最信任的人。抗战胜利后，国民党悍然发动内战，已是四十六军军长的连城，却对革命矢志不渝，坚信共产党得道多助必将取得最后的胜利。他凭借过人的胆识和智慧与韩奎里应外和臂助我党解放大业。为此韩奎不惜牺牲自己I don't know how other departments write it. I always feel that I have been writing it all the time, and these things are often repeated, taking up time not to say it, and sometimes I don't know how to write it.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.