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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. "这个不死之身自出生即遭诅咒，永生不老。他一心复仇，踏上找回灵魂的旅程，设法了结六百年的血海深仇。黑豹（邓光荣）是一名用高额金钱便可请得到而从未失手的职业侠盗。某夜，黑豹受政府内政部要员秋Sir（黄锦燊）重金邀请，偷取一个“银盒”，以试新装之保安系统。黑豹于是找来一班各有特殊技能的人来帮手，分别是嘉嘉（吴家丽）、孟波辉（梁家辉）、程仁（任达华）、Robert（张卫健）及黑豹的师妹青青（林青霞）。Mid-September(1) Purposeful exercises have well-defined specific goals.What have you learned from Darwin, Hemingway and Madame Curie?Nishiyuan also has two pairs of socks. The sister in one eye can be killed in the past.