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This series of articles is based on my speech on RSA 2018.It was listed as an Olympic event in 1908 and cancelled in 1920. It was not resumed until 1972.7. "Life Events" Don't Trouble尹晴柔，一个来自21世纪的小女生，因为意外碰触机关来到了历史上根本不存在的王朝。幸运地被一个冷酷王爷捡回了家，这位元气神经少女与形形色色的王宫权贵的故事也由此展开。板栗待大家笑完了，才郑重地对爷爷奶奶道：这个事儿孙子想过了。When an attacker sends an http get request, Slowly sending useless header fields, And never sends the "\ r\ n\ r\ n" end flag, This allows the connection to the web server to be occupied for a long time and ensures that the link is not broken by timeout. However, the number of concurrent connections that the server can handle is limited. If the attacker uses a large number of controlled hosts to send such incomplete requests and continues to occupy them, the connection resources will be exhausted (slowhttptest tool). A web server software such as iis nginx has been modified for this attack method, but web servers such as apache and dhttpd will still be attacked by slowloris.Chapter II Qualification Conditions