{"id":19281,"date":"2024-08-06T11:53:44","date_gmt":"2024-08-06T03:53:44","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/how-cdn-protection-defends-against-ddos-and-cc-attacks\/"},"modified":"2025-04-03T12:01:39","modified_gmt":"2025-04-03T04:01:39","slug":"how-cdn-protection-defends-against-ddos-and-cc-attacks","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-cdn-protection-defends-against-ddos-and-cc-attacks\/","title":{"rendered":"CDN \u9632\u62a4\u5982\u4f55\u62b5\u5fa1 DDoS \u548c CC \u653b\u51fb?"},"content":{"rendered":"<h2><strong>\u7f51\u7edc\u653b\u51fb\u9632\u62a4\u4e2d\u7684 CDN \u7b80\u4ecb<\/strong><\/h2>\n<p>\u5728\u5f53\u4eca\u7684\u6570\u5b57\u73af\u5883\u4e2d\uff0c<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/hk\/cn2\/\" target=\"_blank\">\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528<\/a>\u63d0\u4f9b\u5546\u9762\u4e34\u7740\u6765\u81ea DDoS \u548c CC \u653b\u51fb\u65e5\u76ca\u589e\u957f\u7684\u5a01\u80c1\u3002\u5185\u5bb9\u5206\u53d1\u7f51\u7edc(CDN)\u9632\u62a4\u5df2\u6210\u4e3a\u7ef4\u62a4\u670d\u52a1\u5668\u5b89\u5168\u548c\u6027\u80fd\u7684\u5173\u952e\u9632\u5fa1\u673a\u5236\u3002\u672c\u6280\u672f\u6307\u5357\u63a2\u8ba8\u4e86 CDN \u9632\u62a4\u5982\u4f55\u6709\u6548\u7f13\u89e3\u8fd9\u4e9b\u653b\u51fb\uff0c\u540c\u65f6\u786e\u4fdd\u6700\u4f73\u670d\u52a1\u4ea4\u4ed8\u3002<\/p>\n<h2><strong>\u7406\u89e3 DDoS \u548c CC \u653b\u51fb<\/strong><\/h2>\n<p>DDoS(\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1)\u653b\u51fb\u901a\u8fc7\u6765\u81ea\u591a\u4e2a\u6765\u6e90\u7684\u5927\u91cf\u6d41\u91cf\u6df9\u6ca1\u670d\u52a1\u5668\u3002CC(\u6311\u6218\u5de8\u661f)\u653b\u51fb\u662f\u7b2c7\u5c42 DDoS \u653b\u51fb\u7684\u4e00\u4e2a\u5b50\u96c6\uff0c\u901a\u8fc7\u770b\u4f3c\u5408\u6cd5\u7684 HTTP \u8bf7\u6c42\u4e13\u95e8\u9488\u5bf9 Web \u5e94\u7528\u7a0b\u5e8f\u8d44\u6e90\u3002\u4ee5\u4e0b\u662f\u5178\u578b\u7684 DDoS \u653b\u51fb\u6a21\u5f0f\u5206\u6790\uff1a<\/p>\n<pre><code>\r\n# Python code example for basic DDoS detection\r\ndef detect_ddos(requests_log, threshold=1000):\r\n    ip_counts = {}\r\n    timeframe = 60  # seconds\r\n    \r\n    for request in requests_log:\r\n        ip = request['ip']\r\n        timestamp = request['timestamp']\r\n        \r\n        # Count requests per IP within timeframe\r\n        if ip in ip_counts:\r\n            ip_counts[ip] += 1\r\n        else:\r\n            ip_counts[ip] = 1\r\n            \r\n        if ip_counts[ip] > threshold:\r\n            return True  # Potential DDoS detected\r\n            \r\n    return False\r\n<\/code><\/pre>\n<h2><strong>CDN \u9632\u5fa1\u673a\u5236<\/strong><\/h2>\n<p>CDN \u9632\u62a4\u901a\u8fc7\u63d0\u4f9b\u591a\u5c42\u9632\u5fa1\u7684\u5206\u5e03\u5f0f\u670d\u52a1\u5668\u7f51\u7edc\u8fd0\u4f5c\uff1a<\/p>\n<ul>\n<li><strong>\u6d41\u91cf\u5206\u53d1\uff1a<\/strong>\u5c06\u653b\u51fb\u6d41\u91cf\u5206\u6563\u5230\u591a\u4e2a\u5b58\u5728\u70b9(PoPs)<\/li>\n<li><strong>\u4efb\u64ad\u7f51\u7edc\uff1a<\/strong>\u5c06\u8bf7\u6c42\u8def\u7531\u5230\u6700\u8fd1\u7684\u53ef\u7528\u670d\u52a1\u5668<\/li>\n<li><strong>\u6d41\u91cf\u6e05\u6d17\uff1a<\/strong>\u5728\u5230\u8fbe\u6e90\u670d\u52a1\u5668\u4e4b\u524d\u8fc7\u6ee4\u6076\u610f\u6d41\u91cf<\/li>\n<\/ul>\n<h2><strong>CDN \u9632\u62a4\u7684\u6280\u672f\u5b9e\u73b0<\/strong><\/h2>\n<p>\u4ee5\u4e0b\u662f\u5178\u578b\u7684 CDN DDoS \u9632\u62a4\u914d\u7f6e\uff1a<\/p>\n<pre><code>\r\n# Example CDN configuration in nginx\r\nhttp {\r\n    # Rate limiting\r\n    limit_req_zone $binary_remote_addr zone=one:10m rate=1r\/s;\r\n    \r\n    # Custom rules for CC attack prevention\r\n    if ($http_user_agent ~* (curl|wget|python)) {\r\n        return 403;\r\n    }\r\n    \r\n    # Enable WAF rules\r\n    modsecurity on;\r\n    modsecurity_rules_file \/etc\/nginx\/modsecurity\/main.conf;\r\n}\r\n<\/code><\/pre>\n<h2><strong>\u9ad8\u7ea7\u9632\u62a4\u529f\u80fd<\/strong><\/h2>\n<p>\u73b0\u4ee3 CDN \u9632\u62a4\u5305\u62ec\u590d\u6742\u7684\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>\u57fa\u4e8e\u4eba\u5de5\u667a\u80fd\u7684\u5a01\u80c1\u68c0\u6d4b<\/li>\n<li>SSL\/TLS \u9632\u62a4<\/li>\n<li>\u5b9e\u65f6\u6d41\u91cf\u5206\u6790<\/li>\n<li>\u81ea\u5b9a\u4e49\u89c4\u5219\u521b\u5efa<\/li>\n<\/ul>\n<h2><strong>\u9999\u6e2f\u670d\u52a1\u5668\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n<p>\u4e3a\u5b9e\u73b0\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u670d\u52a1\u7684\u6700\u4f73\u9632\u62a4\uff1a<\/p>\n<ul>\n<li>\u5728\u4e9a\u592a\u5730\u533a\u90e8\u7f72\u591a\u4e2a\u5b58\u5728\u70b9<\/li>\n<li>\u5b9e\u65bd\u9002\u5f53\u7684 SSL \u7ec8\u6b62<\/li>\n<li>\u5b9a\u671f\u5b89\u5168\u5ba1\u8ba1<\/li>\n<li>24\/7 \u76d1\u63a7\u7cfb\u7edf<\/li>\n<\/ul>\n<h2><strong>\u90e8\u7f72\u6307\u5357<\/strong><\/h2>\n<p>\u5b9e\u65bd CDN \u9632\u62a4\u7684\u6b65\u9aa4\u6d41\u7a0b\uff1a<\/p>\n<pre><code>\r\n# Example implementation steps\r\n1. DNS Configuration\r\n- Update A records\r\n- Configure CNAME\r\n- Set TTL values\r\n\r\n2. SSL Setup\r\n- Generate CSR\r\n- Install certificates\r\n- Enable HTTPS\r\n\r\n3. Rule Configuration\r\n- Set rate limiting\r\n- Configure WAF rules\r\n- Define custom rules\r\n<\/code><\/pre>\n<h2><strong>CDN \u9632\u62a4\u7684\u672a\u6765\u8d8b\u52bf<\/strong><\/h2>\n<p>CDN \u9632\u62a4\u7684\u53d1\u5c55\u5c06\u7ee7\u7eed\u968f\u7740\u8fb9\u7f18\u8ba1\u7b97\u3001AI \u9a71\u52a8\u7684\u5a01\u80c1\u68c0\u6d4b\u548c\u6297\u91cf\u5b50\u52a0\u5bc6\u7b49\u65b0\u5174\u6280\u672f\u800c\u6f14\u8fdb\u3002\u8fd9\u4e9b\u8fdb\u6b65\u5c06\u8fdb\u4e00\u6b65\u589e\u5f3a\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u62b5\u5fa1\u590d\u6742\u7f51\u7edc\u653b\u51fb\u7684\u5b89\u5168\u80fd\u529b\u3002<\/p>\n<h2><strong>\u7ed3\u8bba<\/strong><\/h2>\n<p>CDN \u9632\u62a4\u662f\u4fdd\u62a4\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u670d\u52a1\u514d\u53d7 DDoS \u548c CC \u653b\u51fb\u7684\u5173\u952e\u7ec4\u6210\u90e8\u5206\u3002\u901a\u8fc7\u5b9e\u65bd\u9002\u5f53\u7684 CDN \u5b89\u5168\u63aa\u65bd\uff0c\u7ec4\u7ec7\u53ef\u4ee5\u786e\u4fdd\u5f3a\u5927\u7684\u4fdd\u62a4\uff0c\u540c\u65f6\u4fdd\u6301\u6700\u4f73\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7f51\u7edc\u653b\u51fb\u9632\u62a4\u4e2d\u7684 CDN \u7b80\u4ecb \u5728\u5f53\u4eca\u7684\u6570\u5b57\u73af\u5883\u4e2d\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u9762\u4e34\u7740\u6765\u81ea DDoS \u548c CC \u653b\u51fb\u65e5\u76ca\u589e\u957f\u7684\u5a01\u80c1\u3002\u5185\u5bb9\u5206\u53d1\u7f51\u7edc(CDN)\u9632\u62a4\u5df2\u6210\u4e3a\u7ef4\u62a4\u670d\u52a1\u5668\u5b89\u5168\u548c\u6027\u80fd\u7684\u5173\u952e\u9632\u5fa1\u673a\u5236\u3002\u672c\u6280\u672f\u6307\u5357\u63a2\u8ba8\u4e86 CDN \u9632\u62a4\u5982\u4f55\u6709\u6548\u7f13\u89e3\u8fd9\u4e9b\u653b\u51fb\uff0c\u540c\u65f6\u786e\u4fdd\u6700\u4f73\u670d\u52a1\u4ea4\u4ed8\u3002 \u7406\u89e3 DDoS \u548c CC \u653b\u51fb DDoS(\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1)\u653b\u51fb\u901a\u8fc7\u6765\u81ea\u591a\u4e2a\u6765\u6e90\u7684\u5927\u91cf\u6d41\u91cf\u6df9\u6ca1\u670d\u52a1\u5668\u3002CC(\u6311\u6218\u5de8\u661f)\u653b\u51fb\u662f\u7b2c7\u5c42 DDoS \u653b\u51fb\u7684\u4e00\u4e2a\u5b50\u96c6\uff0c\u901a\u8fc7\u770b\u4f3c\u5408\u6cd5\u7684 HTTP \u8bf7\u6c42\u4e13\u95e8\u9488\u5bf9 Web \u5e94\u7528\u7a0b\u5e8f\u8d44\u6e90\u3002\u4ee5\u4e0b\u662f\u5178\u578b\u7684 DDoS \u653b\u51fb\u6a21\u5f0f\u5206\u6790\uff1a # Python code example for basic DDoS detection def detect_ddos(requests_log, threshold=1000): ip_counts = {} timeframe = 60 # seconds for request in requests_log: ip = request[&#8216;ip&#8217;] timestamp = request[&#8216;timestamp&#8217;] # Count [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-cdn-protection-defends-against-ddos-and-cc-attacks\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":3,"featured_media":19278,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80],"tags":[],"class_list":["post-19281","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CDN \u9632\u62a4\u5982\u4f55\u62b5\u5fa1 DDoS \u548c CC \u653b\u51fb?<\/title>\n<meta name=\"description\" content=\"\u4e86\u89e3 CDN \u9632\u62a4\u5982\u4f55\u6709\u6548\u4fdd\u62a4\u9999\u6e2f\u670d\u52a1\u5668\u514d\u53d7 DDoS \u548c CC \u653b\u51fb\u3002\u6df1\u5165\u5206\u6790\u9632\u5fa1\u673a\u5236\u3001\u90e8\u7f72\u6307\u5357\u548c\u6700\u4f73\u5b9e\u8df5\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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