Method 1: Step 1: Get all IP range of cloudflare: https://www.cloudflare.com/ips-v4 and https://www.cloudflare.com/ips-v6 You see: and Step 2: Config Nginx Method 2: Config Nginx:
New version: How does CloudFlare DDOS protection work? – Update 09/2016 I went to some website and saw the CloudFlare DDOS protection, pictured below: I…