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听杜殇这么称呼子夜，柳成疑惑道：敢问兄弟高姓大名？何以今日会前去营救大王？说实话，于柳成而言，他只知道杜殇也秦国旧臣，具体身份才是一头雾水。Recently, the number of reflective DDoS attacks using memcached servers has increased significantly. CNCERT has carried out centralized monitoring and analysis on three types of key reflective attacks. This report is a special analysis report on reflective attack resources in February 2018. Focusing on the problem of Internet environment threat management, this paper focuses on the analysis of "what are the important network resources used to launch DDoS reflection attacks". Network resources for reflection attacks include:Before performing an SSL data transfer, Both sides of the communication must first shake hands with SSL, The encryption algorithm has been negotiated to exchange the encryption key, Perform identity authentication, Normally, This SSl handshake process only needs to be performed once, But there is a Regegotiation option in the SSL protocol, It allows renegotiation of the secret key to create a new key, The attacker repeatedly carries out the key renegotiation process, and the key renegotiation process requires the server to invest 15 times more CPU computing resources than the client. In addition, even if the server does not support Renegotiation, the attacker can still create similar attack effects by opening a new SSL connection separately.Cabernet Sauvignon-Cabernet Sauvignon