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FORWARD rules can exist in: Mangle table, filter table.这一听，他和黎水都愣住了，也忘了坐了，也忘了点菜了，连小二招呼也不理了。杨寿全真想高喊，真我儿媳也。The content of the website is stored on the source server, and the CDN is the cache of the content. Users are only allowed to access the CDN. If the content is not on the CDN, the CDN sends a request to the source server. In this way, as long as the CDN is large enough, it can resist great attacks. However, this method has a premise that most of the content of the website must be statically cached. For websites (such as forums) with dynamic content as the main content, we must think of other ways to minimize users' requests for dynamic data."Well, it's like a knife, but there is no" back of the knife ". Both sides are" blades "and the head is especially sharp." Zhao Mingkai said.1. China Civil Aviation Aircrew Boarding PassOperating System Win2000, XP