\u6027\u80fd\u4f18\u5316<\/strong><\/h2>\n

\u6700\u4f73\u670d\u52a1\u5668\u6027\u80fd\u9700\u8981\u4ed4\u7ec6\u8c03\u6574\u7cfb\u7edf\u53c2\u6570\u3002\u4ee5\u4e0b\u662fLinux\u7cfb\u7edf\u7684\u793a\u4f8b\u914d\u7f6e\uff1a<\/p>\n

\r\n# \/etc\/sysctl.conf optimization\r\nnet.ipv4.tcp_max_syn_backlog = 4096\r\nnet.core.somaxconn = 4096\r\nnet.ipv4.tcp_max_tw_buckets = 400000\r\nnet.ipv4.ip_local_port_range = 1024 65000\r\nnet.ipv4.tcp_rmem = 4096 87380 16777216\r\nnet.ipv4.tcp_wmem = 4096 87380 16777216\r\n<\/code><\/pre>\n
\u6210\u672c\u6548\u76ca\u5206\u6790<\/strong><\/h2>\n
\u6295\u8d44\u7f8e\u56fd\u9632DDoS\u670d\u52a1\u5668\u901a\u5e38\u53ef\u5e26\u6765\uff1a<\/p>\n
\n
\u51cf\u5c11\u505c\u673a\u6210\u672c\uff08\u5e73\u5747\u6bcf\u5c0f\u65f6\u8282\u770110\u4e07\u7f8e\u5143\uff09<\/li>\n
\u63d0\u5347\u5ba2\u6237\u4fe1\u4efb\u5ea6\u548c\u7559\u5b58\u7387<\/li>\n
\u964d\u4f4e\u4fdd\u9669\u8d39\u7528<\/li>\n
\u6539\u5584\u5408\u89c4\u72b6\u51b5<\/li>\n<\/ul>\n
\u4e3a\u60a8\u7684\u57fa\u7840\u8bbe\u65bd\u672a\u96e8\u7ef8\u7f2a<\/strong><\/h2>\n
\u7f8e\u56fd\u73b0\u4ee3\u670d\u52a1\u5668\u6258\u7ba1\u8bbe\u65bd\u914d\u5907\u4e86\u4e0b\u4e00\u4ee3\u5b89\u5168\u529f\u80fd\u548c\u53ef\u6269\u5c55\u9009\u9879\u3002\u8fd9\u786e\u4fdd\u60a8\u7684\u57fa\u7840\u8bbe\u65bd\u80fd\u591f\u9002\u5e94\u65b0\u5174\u5a01\u80c1\u548c\u4e0d\u65ad\u589e\u957f\u7684\u4e1a\u52a1\u9700\u6c42\u3002<\/p>\n
\u5b9e\u65bd\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n
\u4e3a\u83b7\u5f97\u6700\u4f73\u9632\u62a4\u548c\u6027\u80fd\uff0c\u8bf7\u9075\u5faa\u4ee5\u4e0b\u51c6\u5219\uff1a<\/p>\n
\r\n# Example nginx configuration for DDoS mitigation\r\nhttp {\r\n    limit_req_zone $binary_remote_addr zone=one:10m rate=1r\/s;\r\n    limit_conn_zone $binary_remote_addr zone=addr:10m;\r\n\r\n    server {\r\n        limit_req zone=one burst=5;\r\n        limit_conn addr 10;\r\n        \r\n        # Additional security headers\r\n        add_header X-Frame-Options \"SAMEORIGIN\";\r\n        add_header X-XSS-Protection \"1; mode=block\";\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u7ed3\u8bba<\/strong><\/h2>\n
\u7f8e\u56fd\u9632DDoS\u670d\u52a1\u5668\u4ee3\u8868\u7740\u5bf9\u4f01\u4e1a\u6570\u5b57\u57fa\u7840\u8bbe\u65bd\u7684\u6218\u7565\u6295\u8d44\u3002\u901a\u8fc7\u9002\u5f53\u7684\u5b9e\u65bd\u548c\u6301\u7eed\u7ba1\u7406\uff0c\u8fd9\u4e9b\u89e3\u51b3\u65b9\u6848\u53ef\u4ee5\u4e3a\u5173\u952e\u5e94\u7528\u63d0\u4f9b\u5f3a\u5927\u7684\u4fdd\u62a4\uff0c\u62b5\u5fa1\u4e0d\u65ad\u6f14\u53d8\u7684\u7f51\u7edc\u5a01\u80c1\uff0c\u540c\u65f6\u4fdd\u6301\u6700\u4f73\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u5f53\u4eca\u7684\u6570\u5b57\u73af\u5883\u4e2d\uff0c\u4e3a\u5173\u952e\u5e94\u7528\u9009\u62e9\u5408\u9002\u7684\u57fa\u7840\u8bbe\u65bd\u9700\u8981\u4ed4\u7ec6\u8003\u8651\u5b89\u5168\u6027\u3001\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u7f8e\u56fd\u9632DDoS\u670d\u52a1\u5668\u5df2\u7ecf\u6210\u4e3a\u9700\u8981\u5f3a\u5927\u7f51\u7edc\u5a01\u80c1\u9632\u62a4\u540c\u65f6\u4fdd\u6301\u6700\u4f73\u6027\u80fd\u7684\u4f01\u4e1a\u7684\u7406\u60f3\u89e3\u51b3\u65b9\u6848\u3002 \u7f8e\u56fdDDoS\u9632\u62a4\u7684\u6280\u672f\u67b6\u6784 \u9632\u62a4\u6846\u67b6\u5728\u591a\u4e2a\u5c42\u9762\u8fd0\u4f5c\uff0c\u5b9e\u65bd\u4e86\u590d\u6742\u7684\u6570\u636e\u5305\u8fc7\u6ee4\u7cfb\u7edf\u3002\u5728\u5176\u6838\u5fc3\uff0c\u7f8e\u56fd\u9632DDoS\u670d\u52a1\u5668\u79df\u7528\u5229\u7528\u5206\u5e03\u5f0f\u4efb\u64ad\u7f51\u7edc\uff0c\u5145\u5206\u5229\u7528\u4e3b\u8981\u5bf9\u7b49\u70b9\u7684\u5e7f\u6cdb\u57fa\u7840\u8bbe\u65bd\u3002 \/\/ Example BGP Anycast Configuration router bgp 64512 network 192.0.2.0\/24 neighbor 198.51.100.1 remote-as 64513 neighbor 198.51.100.1 prefix-list ANYCAST out ! ip prefix-list ANYCAST permit 192.0.2.0\/24 \u57fa\u7840\u8bbe\u65bd\u4f18\u52bf \u7f8e\u56fd\u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\u53d7\u76ca\u4e8e\u4e00\u7ea7\u7f51\u7edc\u8fde\u63a5\uff0c\u4e0e\u5168\u7403\u4e3b\u8981\u7f51\u7edc\u5efa\u7acb\u76f4\u63a5\u5bf9\u7b49\u5173\u7cfb\u3002\u8fd9\u8f6c\u5316\u4e3a\u4f18\u8d8a\u7684\u8def\u7531\u6548\u7387\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf\u3002\u5173\u952e\u6307\u6807\u5305\u62ec\uff1a \u5e73\u5747\u6570\u636e\u5305\u4e22\u5931\u7387\uff1a< 0.1% \u7f51\u7edc\u53ef\u7528\u6027\uff1a99.999% \u5e26\u5bbd\u5bb9\u91cf\uff1a\u6bcf\u4e2a\u4f4d\u7f6e\u9ad8\u8fbe1Tbps \u5e73\u5747\u6545\u969c\u95f4\u9694\u65f6\u95f4(MTBF)\uff1a>50,000\u5c0f\u65f6 \u5148\u8fdb\u7684DDoS\u7f13\u89e3\u6280\u672f \u73b0\u4ee3\u9632\u62a4\u7cfb\u7edf\u91c7\u7528\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u6765\u5b9e\u65f6\u68c0\u6d4b\u548c\u7f13\u89e3\u653b\u51fb\u3002\u8be5\u8fc7\u7a0b\u5305\u62ec\uff1a function analyzeTraffic(incoming_packets) { const threshold = calculateDynamicThreshold(); const packet_signature = extractSignature(incoming_packets); if (isAnomalous(packet_signature, threshold)) { return applyMitigation(incoming_packets); } […]<\/p>\n
Read More…<\/a><\/p>\n","protected":false},"author":3,"featured_media":20027,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[5048,5045,5047,5046,3438],"class_list":["post-20047","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-sc","tag-5048","tag-us-ddos-protected-servers-sc","tag-ddos-sc","tag-bgp-optimization-sc","tag-3438"],"acf":[],"yoast_head":"\n