91国产在线视频91国产在线视频

According to Microsoft statistics, the upper limit of dynamic domain name queries that a DNS server can withstand is 9,000 requests per second. However, we know that tens of thousands of domain name resolution requests per second can be easily constructed on a P3 PC, which is enough to paralyze a DNS server with extremely high hardware configuration, thus showing the vulnerability of the DNS server. At present, the most commonly used DNS server software is the leading WINMYDNS in China and Bind abroad.那这梦还长。　　“写给父母亲的信”是Yeon-hwa是一名年轻的女警，她在调查一个案子的过程中认识了中年男子Poong-sik。而这个男人恰恰是她要调查的对象，她被怀疑和警察队长的太太有些说不清楚的金钱往来。在与Poong-sik的接触中，她发现他是个非常有魅力的男子，在医院的初次相遇就让她见识了这个人对生活品质的高要求，Yeon-hwa在不断搜集他犯罪证据的同时，发现Poong-sik原来是个热爱跳舞的人，且舞技了得。Yeon-hwa开始在Poong-sik的指导下学习跳舞，并渐渐深入这个男人的内心世界，原来他也曾经是感情诈骗的受害者，一次偶然他取得了一位已婚太太的钱之后就欲罢不能，且屡屡得手……尽管自己面对的是一个骗子，Yeon-hwa还是在他的舞姿中倾倒。