Method and device for preventing CC (Challenge Collapsar) attack and content delivery network server
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The invention discloses a method and a device for preventing CC (Challenge Collapsar) attack and a content delivery network server, which are used for solving the problem that in the prior art, when the CC attack is prevented, targeted prevention can not be carried out by referring to the actual processing conditions of a server, and the prevention effect is not ideal. The method comprises the following steps: the server receives a request message transmitted by a client, and determines the identification information of the request message; a stored blacklist is queried, and the request message is lost when the identification information is determined to belong to the blacklist, wherein the blacklist is generated according to the access records of the server. By the method and the device for preventing CC attack and the content delivery network server, the blacklist can be generated according to the access records of the server, so that the request message is filtered according to the blacklist, and further, the targeted prevention can be carried out according to the actual processing conditions of the server, so that the prevention effect is more ideal.