{"id":164145,"date":"2024-11-05T05:24:22","date_gmt":"2024-11-04T21:24:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/164145\/"},"modified":"2024-11-05T05:24:23","modified_gmt":"2024-11-04T21:24:23","slug":"%e5%80%9f%e5%8a%a9redis%e4%bf%9d%e8%ad%b7%e7%b6%b2%e7%ab%99%e5%85%8d%e5%8f%97cc%e6%94%bb%e6%93%8a%ef%bc%88redis%e9%98%b2cc%e6%94%bb%e6%93%8a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/164145\/","title":{"rendered":"\u501f\u52a9Redis\u4fdd\u8b77\u7db2\u7ad9\u514d\u53d7CC\u653b\u64ca\uff08redis\u9632cc\u653b\u64ca\uff09"},"content":{"rendered":"

\u501f\u52a9Redis\u4fdd\u8b77\u7db2\u7ad9\u514d\u53d7CC\u653b\u64ca\uff08redis\u9632cc\u653b\u64ca\uff09<\/h1>\n

\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u7db2\u7ad9\u9762\u81e8\u8457\u5404\u7a2e\u5404\u6a23\u7684\u5b89\u5168\u5a01\u8105\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u5c31\u662fCC\u653b\u64ca\uff08Challenge Collapsar Attack\uff09\u3002\u9019\u7a2e\u653b\u64ca\u65b9\u5f0f\u901a\u904e\u5927\u91cf\u7684\u865b\u5047\u8acb\u6c42\u4f86\u6d88\u8017\u7db2\u7ad9\u7684\u8cc7\u6e90\uff0c\u6700\u7d42\u5c0e\u81f4\u7db2\u7ad9\u7121\u6cd5\u6b63\u5e38\u904b\u884c\u3002\u70ba\u4e86\u6709\u6548\u9632\u7bc4\u9019\u985e\u653b\u64ca\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u548c\u7de9\u5b58\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n

\u4ec0\u9ebc\u662fCC\u653b\u64ca\uff1f<\/h2>\n

CC\u653b\u64ca\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u62d2\u7d55\u670d\u52d9\uff08DDoS\uff09\u653b\u64ca\uff0c\u653b\u64ca\u8005\u5229\u7528\u5927\u91cf\u7684\u50f5\u5c4d\u7db2\u7d61\u6216\u5176\u4ed6\u624b\u6bb5\uff0c\u5411\u76ee\u6a19\u7db2\u7ad9\u767c\u9001\u5927\u91cf\u7684\u8acb\u6c42\u3002\u9019\u4e9b\u8acb\u6c42\u901a\u5e38\u662f\u5408\u6cd5\u7684HTTP\u8acb\u6c42\uff0c\u4f46\u7531\u65bc\u6578\u91cf\u9f90\u5927\uff0c\u6700\u7d42\u6703\u5c0e\u81f4\u7db2\u7ad9\u7684\u670d\u52d9\u5668\u8cc7\u6e90\u88ab\u8017\u76e1\uff0c\u7121\u6cd5\u8655\u7406\u6b63\u5e38\u7528\u6236\u7684\u8acb\u6c42\u3002\u9019\u7a2e\u653b\u64ca\u4e0d\u50c5\u5f71\u97ff\u7db2\u7ad9\u7684\u53ef\u7528\u6027\uff0c\u9084\u53ef\u80fd\u5c0d\u4f01\u696d\u7684\u8072\u8b7d\u9020\u6210\u56b4\u91cd\u640d\u5bb3\u3002<\/p>\n

Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u5b83\u7684\u9ad8\u6548\u6027\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u9632\u7bc4CC\u653b\u64ca\u7684\u7406\u60f3\u9078\u64c7\u3002Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u4e26\u4e14\u80fd\u5920\u5728\u5167\u5b58\u4e2d\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u5927\u91cf\u8acb\u6c42\u6642\u8868\u73fe\u51fa\u8272\u3002<\/p>\n

\u5982\u4f55\u5229\u7528Redis\u9632\u7bc4CC\u653b\u64ca<\/h2>\n

\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5229\u7528Redis\u4f86\u9632\u7bc4CC\u653b\u64ca\u7684\u6709\u6548\u65b9\u6cd5\uff1a<\/p>\n

1. \u8acb\u6c42\u901f\u7387\u9650\u5236<\/h3>\n

\u901a\u904eRedis\uff0c\u53ef\u4ee5\u5be6\u73fe\u5c0d\u7528\u6236\u8acb\u6c42\u7684\u901f\u7387\u9650\u5236\u3002\u9019\u610f\u5473\u8457\u53ef\u4ee5\u8a2d\u7f6e\u6bcf\u500b\u7528\u6236\u5728\u4e00\u5b9a\u6642\u9593\u5167\u7684\u8acb\u6c42\u6b21\u6578\u4e0a\u9650\uff0c\u8d85\u904e\u9019\u500b\u4e0a\u9650\u7684\u8acb\u6c42\u5c07\u88ab\u62d2\u7d55\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n

\nconst redis = require('redis');\nconst client = redis.createClient();\n\nconst RATE_LIMIT = 100; \/\/ \u6bcf\u5206\u9418\u6700\u591a\u8acb\u6c42\u6b21\u6578\nconst TIME_WINDOW = 60; \/\/ \u6642\u9593\u7a97\u53e3\uff08\u79d2\uff09\n\nfunction rateLimit(userId) {\n    const currentTime = Math.floor(Date.now() \/ 1000);\n    const key = `rate_limit:${userId}:${currentTime}`;\n\n    client.incr(key, (err, count) => {\n        if (err) throw err;\n\n        if (count === 1) {\n            client.expire(key, TIME_WINDOW);\n        }\n\n        if (count > RATE_LIMIT) {\n            console.log('\u8acb\u6c42\u904e\u65bc\u983b\u7e41\uff0c\u8acb\u7a0d\u5f8c\u518d\u8a66\u3002');\n            return false;\n        }\n        return true;\n    });\n}\n<\/code><\/pre>\n
2. IP\u9ed1\u540d\u55ae<\/h3>\n
Redis\u9084\u53ef\u4ee5\u7528\u4f86\u7ba1\u7406IP\u9ed1\u540d\u55ae\u3002\u7576\u67d0\u500bIP\u5730\u5740\u767c\u9001\u7684\u8acb\u6c42\u6b21\u6578\u8d85\u904e\u9810\u8a2d\u7684\u95be\u503c\u6642\uff0c\u53ef\u4ee5\u5c07\u8a72IP\u5730\u5740\u52a0\u5165\u9ed1\u540d\u55ae\uff0c\u5f9e\u800c\u963b\u6b62\u5176\u9032\u4e00\u6b65\u7684\u8acb\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n
\nconst BLACKLIST_THRESHOLD = 100; \/\/ \u9ed1\u540d\u55ae\u95be\u503c\n\nfunction checkBlacklist(ip) {\n    client.get(`blacklist:${ip}`, (err, result) => {\n        if (result) {\n            console.log('\u8a72IP\u5df2\u88ab\u5c01\u9396\u3002');\n            return true;\n        }\n        return false;\n    });\n}\n\nfunction addToBlacklist(ip) {\n    client.set(`blacklist:${ip}`, 'blocked', 'EX', TIME_WINDOW);\n}\n<\/code><\/pre>\n
3. \u5be6\u6642\u76e3\u63a7\u548c\u5831\u8b66<\/h3>\n
\u5229\u7528Redis\u7684Pub\/Sub\u529f\u80fd\uff0c\u53ef\u4ee5\u5be6\u73fe\u5c0d\u7db2\u7ad9\u6d41\u91cf\u7684\u5be6\u6642\u76e3\u63a7\u3002\u4e00\u65e6\u6aa2\u6e2c\u5230\u7570\u5e38\u6d41\u91cf\uff0c\u53ef\u4ee5\u7acb\u5373\u767c\u51fa\u8b66\u5831\uff0c\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u9632\u8b77\u63aa\u65bd\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
CC\u653b\u64ca\u5c0d\u7db2\u7ad9\u7684\u5f71\u97ff\u4e0d\u5bb9\u5c0f\u89b7\uff0c\u800cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u548c\u7de9\u5b58\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9632\u7bc4\u63aa\u65bd\u3002\u901a\u904e\u8acb\u6c42\u901f\u7387\u9650\u5236\u3001IP\u9ed1\u540d\u55ae\u7ba1\u7406\u4ee5\u53ca\u5be6\u6642\u76e3\u63a7\u7b49\u624b\u6bb5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11CC\u653b\u64ca\u5c0d\u7db2\u7ad9\u7684\u5f71\u97ff\u3002\u5c0d\u65bc\u5e0c\u671b\u63d0\u5347\u7db2\u7ad9\u5b89\u5168\u6027\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u548c\u914d\u7f6eRedis\u662f\u975e\u5e38\u91cd\u8981\u7684\u6b65\u9a5f\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc \u9999\u6e2fVPS<\/a> \u548c \u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u5c07\u6709\u52a9\u65bc\u4f01\u696d\u5728\u9762\u5c0d\u5404\u7a2e\u7db2\u7d61\u5a01\u8105\u6642\uff0c\u4fdd\u6301\u7db2\u7ad9\u7684\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f7f\u7528Redis\u6709\u6548\u9632\u8b77\u7db2\u7ad9\u514d\u53d7CC\u653b\u64ca\uff0c\u63d0\u5347\u5b89\u5168\u6027\u8207\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u7528\u6236\u9ad4\u9a57\u4e0d\u53d7\u5f71\u97ff\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-164145","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=164145"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164145\/revisions"}],"predecessor-version":[{"id":164146,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164145\/revisions\/164146"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=164145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=164145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=164145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}