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He said the problem was that he forgot to disable recursive queries on the server, which made his server a tool used by DNS amplification attacks. He explained: "DNS servers can be configured in one of two basic ways. In one possible configuration, the DNS server only provides domain name services (imperative) for the objects it is responsible for serving. In another configuration, in addition to providing those domain name services, the DNS server also searches for any domain (recursively) on the wider Internet that it was not authorized to manage. It is the recursive DNS server that enables the Internet to operate normally. They are also a way of attack. "Direct release result: Additional damage does not eat the defense force of the defender, and can penetrate the shield, and is not increased by the damage rate of the equipment, and it seems that it cannot be critically hit.B. Women:-49KG,-57KG,-67KG, + 67KG可是他心里很清楚，这些不算什么，真正的大功劳在于临江国的都城江陵。　　出版社里，性格开朗心直口快的女编辑顾小西和漂亮女友温文尔雅的同事简佳正为一部新书如何定名与发行部主任争执着，为了吸引读者的眼球，主任建议将女作者自己起的书名《人比黄花》改为《我被保养的三年》，这个书名隐隐地刺痛了简佳。快递给简佳送来一束“蓝色妖姬”，这令已婚的顾小西惊羡不已。 电脑公司里，忙碌的何建国接到电话；妻子小西怀孕了。不过，因为过年，我们也准备了些自家酿的甜米酒。However, writing code in this way has the following disadvantages: