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The attack uses the method of sending a large number of domain name resolution requests to the attacked server, Usually the domain name requested to be resolved is randomly generated or does not exist on the network. When the attacked DNS server receives the domain name resolution request, it will first look for whether there is a corresponding cache on the server. If it cannot be found and the domain name cannot be directly resolved by the server, the DNS server will recursively query the domain name information from its upper DNS server. The process of domain name resolution brings a great load to the server. If the number of domain name resolution requests exceeds a certain number per second, the DNS server will time out to resolve domain names.1. Improper site selection and unprotected water resources, and there was nothing I could do in the face of this year's drought. One of my uncle's families planted more than 20 mu of rice and collected more than half of it. In those days, I inquired everywhere about buying a sprinkler for emergency. In the end, even if I bought a car, I had no place to pump water. It cost a lot of money to pump water and burn oil. In the end, I did not necessarily save my life. Finally, I had to give up.本剧以新人贾一平饰演的大学生刑剑峰为主线人物，奚美娟、董晓燕、王茜、曹雪分别饰演在刑剑峰的生命中起着重要作用的四个女人，一个男人周旋于四个女人之间层叠交错地展开了一幕幕游离于股场幕后惊心动魄的暗箱故事。洞。 　　囤积物资伺机炒卖为庄，为求利益最大化，庄者投机无所不用其极。刑剑峰研究生毕业就职粤兴证券公司，被富刺激和挑战的行业吸引，多种优势和机遇，在“恩师”薛淑玉升为总经理时，一步登天当上“操盘手”，走上新时代金融“豪赌”，快意江湖的中心点。领导、恩师、情人、爱人、朋友、伙伴乃至敌人的位置不停转换；邢在屡遭隐害打击中质变：斗死薛淑玉，放任妻子挪用公款被判死刑，逼走挚友，出卖色相，陷害同仁，打法律擦边球……终成为公司总经理。然后疯狂设计出一个个天衣无缝的骗局赌局，数额之大旷古惊心……For goods sold and delivered by Jingdong platform sellers, the platform sellers shall provide invoices and corresponding after-sales services. Please feel free to buy!说完竟不理他了，让人带他出去，自己跟胡钧等人去吃饭。In the first week of the competition, I will create a preliminary solution, which will be followed up and updated as the competition progresses. To do this, I must first have a certain understanding of the data and difficulties of this competition, and then study similar Kaggle competitions and related papers.1. The goddess's hometown is Taipei, and my hometown is Erdaogou Village, Tieling City. Although he is a big city and I am a rural area, we are all Chinese.