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Chow Yun Fat Endorsements: HK Million Every 2 Years Zhang Xueyou Endorsements: HK Million Every YearWhen 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.(Tickets purchased at the ticket vending machine are green on the top and tickets purchased at the manual window are orange on the bottom)这下麻烦了：苞谷忙了半天，可不就是为了烤鱼吃么。Model Reconstruction: The key idea here is that attackers can recreate the model by probing the public API and gradually improve their own model by using it as Oracle. A recent paper (https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_tramer. Pdf) shows that this attack seems to be effective for most artificial intelligence algorithms, including support vector machines, random forests and deep neural networks.