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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. "胡宗宪只好亲自操笔，用尽毕生之才华，之辞藻，声泪俱下写出奏折，只求见嘉靖一面。杨长帆瞠目结舌，在他眼中，这样的战争应该是充满仇恨与压抑的，然而自家麾下大军却响亮的抽了自己一个耳光，在自己并未下令禁止劫城的情况下，井然有序。But it happened that I couldn't recognize myself and dreamed of climbing to heaven.Focus 2. The second level will only add up and will not add any more.但是只因为发现了敌酋赵王歇和陈余的踪迹。