{"id":21401,"date":"2025-06-02T14:29:00","date_gmt":"2025-06-02T06:29:00","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/mitigate-ddos-attacks-while-accelerating-global-user-access\/"},"modified":"2025-06-02T16:12:28","modified_gmt":"2025-06-02T08:12:28","slug":"mitigate-ddos-attacks-while-accelerating-global-user-access","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/mitigate-ddos-attacks-while-accelerating-global-user-access\/","title":{"rendered":"\u5982\u4f55\u6297DDoS\u653b\u51fb\u540c\u65f6\u5e76\u8ba9\u5168\u7403\u7528\u6237\u8bbf\u95ee\u63d0\u901f\uff1f"},"content":{"rendered":"<div class=\"highlight-box\">\n<p>\u5728\u5f53\u4eca\u4e92\u8054\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\u53cc\u91cd\u6311\u6218:\u7ef4\u6301\u5f3a\u5927\u7684DDoS\u9632\u62a4\u7684\u540c\u65f6\u786e\u4fdd\u6700\u4f73\u7684\u5168\u7403\u8bbf\u95ee\u901f\u5ea6\u3002\u672c\u7efc\u5408\u6280\u672f\u6307\u5357\u63a2\u8ba8\u4e86\u5728\u4e0d\u5f71\u54cd\u6027\u80fd\u7684\u60c5\u51b5\u4e0b\u5b9e\u65bd\u4f01\u4e1a\u7ea7\u5b89\u5168\u63aa\u65bd\u7684\u9ad8\u7ea7\u7b56\u7565\u3002<\/p>\n<\/div>\n<h2>\u4e86\u89e3\u73b0\u4ee3DDoS\u653b\u51fb\u8f7d\u4f53<\/h2>\n<p>\u5f53\u4ee3DDoS\u653b\u51fb\u5df2\u7ecf\u8d85\u8d8a\u4e86\u7b80\u5355\u7684\u5bb9\u91cf\u653b\u51fb\u3002\u5229\u7528\u590d\u6742\u7684\u5e94\u7528\u5c42\u6f0f\u6d1e\u7684\u7b2c7\u5c42\u653b\u51fb\u73b0\u5728\u6784\u6210\u4e86\u6240\u6709DDoS\u4e8b\u4ef6\u7684\u91cd\u8981\u90e8\u5206\u3002\u7531\u4e8e\u9999\u6e2f\u670d\u52a1\u5668\u5728\u5168\u7403\u6d41\u91cf\u6d41\u5411\u4e2d\u7684\u6218\u7565\u4f4d\u7f6e\u4ee5\u53ca\u9760\u8fd1\u4e3b\u8981\u4e9a\u6d32\u5e02\u573a\u7684\u4f18\u52bf\uff0c\u8fd9\u4e9b\u653b\u51fb\u5bf9\u5176\u6784\u6210\u4e86\u7279\u6b8a\u7684\u6311\u6218\u3002<\/p>\n<h2>DDoS\u7f13\u89e3\u7684\u6280\u672f\u67b6\u6784<\/h2>\n<p>\u5b9e\u65bd\u6709\u6548\u7684DDoS\u7f13\u89e3\u7b56\u7565\u9700\u8981\u591a\u5c42\u6b21\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>\u5177\u6709\u591a\u4e2a\u5168\u7403\u63a5\u5165\u70b9(PoPs)\u7684\u4efb\u64ad\u7f51\u7edc\u5b9e\u65bd<\/li>\n<li>\u5177\u6709\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\u673a\u5236\u7684BGP\u8def\u7531\u534f\u8bae<\/li>\n<li>\u4f7f\u7528\u81ea\u5b9a\u4e49\u5185\u6838\u53c2\u6570\u7684TCP\/IP\u5806\u6808\u52a0\u56fa<\/li>\n<li>\u4f7f\u7528\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u7684\u667a\u80fd\u6d41\u91cf\u6a21\u5f0f\u5206\u6790<\/li>\n<li>\u9ad8\u7ea7\u6570\u636e\u5305\u8fc7\u6ee4\u548c\u901f\u7387\u9650\u5236<\/li>\n<li>\u5b9e\u65f6\u5a01\u80c1\u60c5\u62a5\u96c6\u6210<\/li>\n<\/ul>\n<h2>\u5168\u7403\u52a0\u901f\u6846\u67b6<\/h2>\n<p>\u5728\u5b9e\u65bd\u5b89\u5168\u63aa\u65bd\u7684\u540c\u65f6\u4fdd\u6301\u4f4e\u5ef6\u8fdf\u7684\u5173\u952e\u5728\u4e8e\u667a\u80fd\u8def\u7531\u4f18\u5316\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528GeoDNS\u5b9e\u73b0\u7684\u667a\u80fdDNS\u89e3\u6790<\/li>\n<li>\u4f7f\u7528MPTCP\u7684\u591a\u8def\u5f84\u4f18\u5316<\/li>\n<li>\u5728\u6218\u7565\u4f4d\u7f6e\u90e8\u7f72\u8fb9\u7f18\u8ba1\u7b97<\/li>\n<li>\u5b9e\u65f6\u8fde\u63a5\u8d28\u91cf\u76d1\u63a7<\/li>\n<li>\u52a8\u6001\u5185\u5bb9\u4f20\u8f93\u4f18\u5316<\/li>\n<li>\u81ea\u9002\u5e94\u6bd4\u7279\u7387\u6d41\u5a92\u4f53\u529f\u80fd<\/li>\n<\/ul>\n<h2>\u6027\u80fd\u4f18\u5316\u6280\u672f<\/h2>\n<pre>\r\n# TCP\u4f18\u5316\u53c2\u6570\r\nnet.ipv4.tcp_window_scaling = 1\r\nnet.ipv4.tcp_max_syn_backlog = 3240000\r\nnet.ipv4.tcp_max_tw_buckets = 1440000\r\nnet.core.rmem_max = 16777216\r\nnet.core.wmem_max = 16777216\r\nnet.ipv4.tcp_slow_start_after_idle = 0\r\nnet.ipv4.tcp_fastopen = 3\r\n<\/pre>\n<h2>\u9999\u6e2f\u7279\u5b9a\u7f51\u7edc\u67b6\u6784<\/h2>\n<p>\u9999\u6e2f\u4f5c\u4e3a\u4e9a\u592a\u67a2\u7ebd\u7684\u72ec\u7279\u5730\u4f4d\u9700\u8981\u4e13\u95e8\u7684\u914d\u7f6e\uff1a<\/p>\n<ul>\n<li>\u4e0e\u4e3b\u8981\u533a\u57dfISP\u76f4\u63a5\u5bf9\u7b49<\/li>\n<li>\u901a\u8fc7MPLS\u7f51\u7edc\u8fdb\u884c\u8de8\u5883\u5e26\u5bbd\u4f18\u5316<\/li>\n<li>\u5177\u6709\u4f18\u5316\u54cd\u5e94\u65f6\u95f4\u7684\u533a\u57df\u8fb9\u7f18\u7f13\u5b58<\/li>\n<li>\u8de8\u591a\u4e2a\u6d77\u5e95\u7535\u7f06\u7cfb\u7edf\u7684\u8d1f\u8f7d\u5747\u8861<\/li>\n<li>\u4e0e\u672c\u5730\u4e92\u8054\u7f51\u4ea4\u6362\u4e2d\u5fc3\u96c6\u6210<\/li>\n<li>\u533a\u57df\u6545\u969c\u8f6c\u79fb\u548c\u707e\u96be\u6062\u590d\u7cfb\u7edf<\/li>\n<\/ul>\n<h2>\u5168\u7403\u8bbf\u95ee\u4f18\u5316\u77e9\u9635<\/h2>\n<style>\n        table {\n            border-collapse: collapse;\n            width: 100%;\n        }<\/p>\n<p>        th, td {\n            border: 1px solid black;\n            padding: 8px;\n            text-align: left;\n        }<\/p>\n<p>        th {\n            background-color: #f2f2f2;\n        }\n    <\/style>\n<table>\n<tr>\n<th>\u5730\u533a<\/th>\n<th>\u57fa\u51c6\u5ef6\u8fdf<\/th>\n<th>\u4f18\u5316\u540e\u5ef6\u8fdf<\/th>\n<th>\u6539\u5584\u7a0b\u5ea6<\/th>\n<th>\u53ef\u9760\u6027\u8bc4\u7ea7<\/th>\n<\/tr>\n<tr>\n<td>\u5317\u7f8e<\/td>\n<td>180\u6beb\u79d2<\/td>\n<td>90\u6beb\u79d2<\/td>\n<td>50%<\/td>\n<td>99.99%<\/td>\n<\/tr>\n<tr>\n<td>\u6b27\u6d32<\/td>\n<td>220\u6beb\u79d2<\/td>\n<td>110\u6beb\u79d2<\/td>\n<td>50%<\/td>\n<td>99.98%<\/td>\n<\/tr>\n<tr>\n<td>\u4e1c\u5357\u4e9a<\/td>\n<td>70\u6beb\u79d2<\/td>\n<td>25\u6beb\u79d2<\/td>\n<td>64%<\/td>\n<td>99.99%<\/td>\n<\/tr>\n<tr>\n<td>\u4e1c\u4e9a<\/td>\n<td>45\u6beb\u79d2<\/td>\n<td>15\u6beb\u79d2<\/td>\n<td>67%<\/td>\n<td>99.99%<\/td>\n<\/tr>\n<\/table>\n<h2>\u5b9e\u65bd\u8def\u7ebf\u56fe<\/h2>\n<ol>\n<li>\u57fa\u7840\u8bbe\u65bd\u8bc4\u4f30\n<ul>\n<li>\u7f51\u7edc\u62d3\u6251\u5206\u6790<\/li>\n<li>\u6d41\u91cf\u6a21\u5f0f\u8bc4\u4f30<\/li>\n<li>\u8d44\u6e90\u5bb9\u91cf\u89c4\u5212<\/li>\n<li>\u5b89\u5168\u6f0f\u6d1e\u8bc4\u4f30<\/li>\n<\/ul>\n<\/li>\n<li>\u5b89\u5168\u5c42\u5b9e\u65bd\n<ul>\n<li>DDoS\u7f13\u89e3\u89c4\u5219\u90e8\u7f72<\/li>\n<li>WAF\u914d\u7f6e\u548c\u4f18\u5316<\/li>\n<li>SSL\/TLS\u4f18\u5316<\/li>\n<li>\u96f6\u4fe1\u4efb\u5b89\u5168\u6846\u67b6\u5b9e\u65bd<\/li>\n<\/ul>\n<\/li>\n<li>\u6027\u80fd\u63d0\u5347\n<ul>\n<li>CDN\u96c6\u6210\u548c\u4f18\u5316<\/li>\n<li>\u8def\u7531\u4f18\u5316\u548c\u6d41\u91cf\u5de5\u7a0b<\/li>\n<li>\u7f13\u5b58\u7b56\u7565\u5b9e\u65bd<\/li>\n<li>\u5185\u5bb9\u4f18\u5316\u548c\u538b\u7f29<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>\u672a\u6765\u6280\u672f\u51c6\u5907<\/h2>\n<p>\u4e3a\u4e86\u4fdd\u6301\u6700\u4f73\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\uff0c\u8bf7\u8003\u8651\u8fd9\u4e9b\u65b0\u5174\u6280\u672f\uff1a<\/p>\n<ul>\n<li>\u6297\u91cf\u5b50\u52a0\u5bc6\u534f\u8bae<\/li>\n<li>AI\u9a71\u52a8\u7684\u6d41\u91cf\u5206\u6790\u548c\u5a01\u80c1\u68c0\u6d4b<\/li>\n<li>\u96f6\u4fe1\u4efb\u7f51\u7edc\u67b6\u6784<\/li>\n<li>\u8fb9\u7f18\u8ba1\u7b97\u96c6\u6210<\/li>\n<li>\u57fa\u4e8e\u533a\u5757\u94fe\u7684\u5b89\u5168\u9a8c\u8bc1<\/li>\n<li>\u9ad8\u7ea7\u81ea\u52a8\u5316\u548c\u7f16\u6392<\/li>\n<\/ul>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u9ad8\u7ea7DDoS\u9632\u62a4\u548c\u5168\u7403\u52a0\u901f\u7b56\u7565\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u53ef\u4ee5\u5728\u4fdd\u6301\u5f3a\u5927\u5b89\u5168\u6027\u7684\u540c\u65f6\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u3002\u5173\u952e\u5728\u4e8e\u5e73\u8861\u4fdd\u62a4\u673a\u5236\u548c\u4f18\u5316\u6280\u672f\uff0c\u5145\u5206\u5229\u7528\u9999\u6e2f\u4f5c\u4e3a\u5168\u7403\u7f51\u7edc\u67a2\u7ebd\u7684\u72ec\u7279\u5730\u4f4d\u3002\u5b9a\u671f\u76d1\u63a7\u3001\u6301\u7eed\u4f18\u5316\u4ee5\u53ca\u4e0e\u65b0\u5174\u6280\u672f\u4fdd\u6301\u540c\u6b65\uff0c\u786e\u4fdd\u5728\u7ba1\u7406\u5b89\u5168\u6027\u548c\u6027\u80fd\u9700\u6c42\u65b9\u9762\u53d6\u5f97\u957f\u671f\u6210\u529f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5f53\u4eca\u4e92\u8054\u7684\u6570\u5b57\u73af\u5883\u4e2d\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u9762\u4e34\u53cc\u91cd\u6311\u6218:\u7ef4\u6301\u5f3a\u5927\u7684DDoS\u9632\u62a4\u7684\u540c\u65f6\u786e\u4fdd\u6700\u4f73\u7684\u5168\u7403\u8bbf\u95ee\u901f\u5ea6\u3002\u672c\u7efc\u5408\u6280\u672f\u6307\u5357\u63a2\u8ba8\u4e86\u5728\u4e0d\u5f71\u54cd\u6027\u80fd\u7684\u60c5\u51b5\u4e0b\u5b9e\u65bd\u4f01\u4e1a\u7ea7\u5b89\u5168\u63aa\u65bd\u7684\u9ad8\u7ea7\u7b56\u7565\u3002 \u4e86\u89e3\u73b0\u4ee3DDoS\u653b\u51fb\u8f7d\u4f53 \u5f53\u4ee3DDoS\u653b\u51fb\u5df2\u7ecf\u8d85\u8d8a\u4e86\u7b80\u5355\u7684\u5bb9\u91cf\u653b\u51fb\u3002\u5229\u7528\u590d\u6742\u7684\u5e94\u7528\u5c42\u6f0f\u6d1e\u7684\u7b2c7\u5c42\u653b\u51fb\u73b0\u5728\u6784\u6210\u4e86\u6240\u6709DDoS\u4e8b\u4ef6\u7684\u91cd\u8981\u90e8\u5206\u3002\u7531\u4e8e\u9999\u6e2f\u670d\u52a1\u5668\u5728\u5168\u7403\u6d41\u91cf\u6d41\u5411\u4e2d\u7684\u6218\u7565\u4f4d\u7f6e\u4ee5\u53ca\u9760\u8fd1\u4e3b\u8981\u4e9a\u6d32\u5e02\u573a\u7684\u4f18\u52bf\uff0c\u8fd9\u4e9b\u653b\u51fb\u5bf9\u5176\u6784\u6210\u4e86\u7279\u6b8a\u7684\u6311\u6218\u3002 DDoS\u7f13\u89e3\u7684\u6280\u672f\u67b6\u6784 \u5b9e\u65bd\u6709\u6548\u7684DDoS\u7f13\u89e3\u7b56\u7565\u9700\u8981\u591a\u5c42\u6b21\u65b9\u6cd5\uff1a \u5177\u6709\u591a\u4e2a\u5168\u7403\u63a5\u5165\u70b9(PoPs)\u7684\u4efb\u64ad\u7f51\u7edc\u5b9e\u65bd \u5177\u6709\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\u673a\u5236\u7684BGP\u8def\u7531\u534f\u8bae \u4f7f\u7528\u81ea\u5b9a\u4e49\u5185\u6838\u53c2\u6570\u7684TCP\/IP\u5806\u6808\u52a0\u56fa \u4f7f\u7528\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u7684\u667a\u80fd\u6d41\u91cf\u6a21\u5f0f\u5206\u6790 \u9ad8\u7ea7\u6570\u636e\u5305\u8fc7\u6ee4\u548c\u901f\u7387\u9650\u5236 \u5b9e\u65f6\u5a01\u80c1\u60c5\u62a5\u96c6\u6210 \u5168\u7403\u52a0\u901f\u6846\u67b6 \u5728\u5b9e\u65bd\u5b89\u5168\u63aa\u65bd\u7684\u540c\u65f6\u4fdd\u6301\u4f4e\u5ef6\u8fdf\u7684\u5173\u952e\u5728\u4e8e\u667a\u80fd\u8def\u7531\u4f18\u5316\uff1a \u4f7f\u7528GeoDNS\u5b9e\u73b0\u7684\u667a\u80fdDNS\u89e3\u6790 \u4f7f\u7528MPTCP\u7684\u591a\u8def\u5f84\u4f18\u5316 \u5728\u6218\u7565\u4f4d\u7f6e\u90e8\u7f72\u8fb9\u7f18\u8ba1\u7b97 \u5b9e\u65f6\u8fde\u63a5\u8d28\u91cf\u76d1\u63a7 \u52a8\u6001\u5185\u5bb9\u4f20\u8f93\u4f18\u5316 \u81ea\u9002\u5e94\u6bd4\u7279\u7387\u6d41\u5a92\u4f53\u529f\u80fd \u6027\u80fd\u4f18\u5316\u6280\u672f # TCP\u4f18\u5316\u53c2\u6570 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_max_syn_backlog = 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