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这样弄得脏兮兮的，看上去才显得真。The extensive deployment of network services used by the amplifier determines the scale and severity of the amplification attack, If some network services exist, No authentication is required and the amplification effect is very good, but the number of deployments on the Internet is very small, so the amplification using this network service cannot achieve a large traffic and the effect of effectively consuming broadband resources, and this network service cannot be used as the main amplification attack traffic, but can only be used as an auxiliary means.Http://www.freebuf.com/news/67204.htmlIf an attacker sends a large number of SYN requests with fake source addresses, the server side will consume a lot of resources to handle this semi-connection, and saving traversal will consume a lot of CPU time and memory, not to mention retrying SYN + ACK on IP in this list. TCP is a reliable protocol, and messages will be retransmitted at this time. The default number of retries is 5. The interval time of retries is doubled from 1s to 1s + 2s + 4s + 8s + 16s = 31s respectively. After the fifth time is sent out, it will take 32s to know that the fifth time has timed out, so the total is 31 + 32=63s.讲述主人公与书籍们的故事，读者能够赋予书籍生命，而书籍能够让读者生活充满色彩。本剧为日本富士电视台，TBS电视台，东京电视台的一些推理剧场版，我们把这些剧场版的合为《推理剧场》，每月不定期更新，喜欢推理剧的朋友，可以看看！他知道这一派之中不乏许多有才智，有学识的高人，当然曾经追随在秦皇长子的扶苏身边。