{"id":5850,"date":"2023-03-09T09:00:00","date_gmt":"2023-03-09T00:00:00","guid":{"rendered":"https:\/\/www.prime-strategy.co.jp\/column\/?p=5850"},"modified":"2026-02-17T02:04:22","modified_gmt":"2026-02-16T17:04:22","slug":"kusanagi-ratelimit-%e3%81%a7%e8%a1%8c%e3%81%86dos%e6%94%bb%e6%92%83%e5%af%be%e7%ad%96%e8%a7%a3%e8%aa%ac","status":"publish","type":"post","link":"https:\/\/kusanagi.tokyo\/column\/archives\/column_5850","title":{"rendered":"kusanagi ratelimit \u3067\u884c\u3046DoS\u653b\u6483\u5bfe\u7b56\u89e3\u8aac"},"content":{"rendered":"\n

\u3053\u3093\u306b\u3061\u306f\u3001\u6280\u8853\u62c5\u5f53\u57f7\u884c\u5f79\u54e1\u306e\u5927\u66f2\u3067\u3059\u3002<\/p>\n\n\n\n

\u4eca\u56de\u306f\u3001KUSANAGI \u306e ratelimit \u30b3\u30de\u30f3\u30c9\u3067\u5b9f\u65bd\u3067\u304d\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u30b3\u30de\u30f3\u30c9\u3001\u304a\u3088\u3073\u305d\u306e\u4ed5\u69d8\u306b\u3064\u3044\u3066\u3001\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u30b5\u30a4\u30c8\u306b\u306f\u3001\u4e00\u822c\u7684\u306b\u306f\u898b\u3048\u307e\u305b\u3093\u304c\u3001\u8106\u5f31\u6027\u3092\u72d9\u3063\u305f\u69d8\u3005\u306a\u30a2\u30af\u30bb\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u4e2d\u306b\u306f\u3001\u9060\u616e\u304c\u4e00\u5207\u306a\u304f\u3001\u591a\u6570\u306e\u653b\u6483\u3092\u4e00\u6c17\u306b\u9001\u308a\u3064\u3051\u3066\u304f\u308b\u3088\u3046\u306a\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002KUSANAGI \u306e ratelimit \u30b3\u30de\u30f3\u30c9\u306f\u3001\u6709\u52b9\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u540c\u4e00\u30ea\u30af\u30a8\u30b9\u30c8\u5143\u304b\u3089\u306e\u9023\u7d9a\u7684\u306a\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3053\u306e\u3088\u3046\u306a\u653b\u6483\u306b\u3088\u308b\u30b5\u30fc\u30d0\u8ca0\u8377\u4e0a\u6607\u3001\u304a\u3088\u3073\u30b5\u30a4\u30c8\u30c0\u30a6\u30f3\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

<\/span>ratelimit \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3048\u308b\u74b0\u5883\u306b\u3064\u3044\u3066<\/span><\/h2>\n\n\n\n

KUSANAGI \u306e ratelimit \u30b3\u30de\u30f3\u30c9\u306f\u3001\u5229\u7528\u3059\u308b Web\u30b5\u30fc\u30d0\u306b nginx \u3092\u9078\u629e\u3057\u3066\u3044\u308b\u5834\u5408\u306e\u307f\u3001\u6709\u52b9\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001ratelimit \u30b3\u30de\u30f3\u30c9\u304c\u3001nginx \u306e ngx_http_limit_req_module \u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u8a2d\u5b9a\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u5b9f\u73fe\u3057\u3066\u3044\u308b\u305f\u3081\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u307e\u305f\u3001\u30b3\u30de\u30f3\u30c9\u304c\u5229\u7528\u3067\u304d\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u3057\u3066\u3001KUSANAGI \uff19\u306e\u5168\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u304a\u3088\u3073 KUSANAGI 8 \u306e 8.5.1-1 \u4ee5\u4e0a\u3067\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30d0\u30b0\u306e\u4fee\u6b63\u5bfe\u5fdc\u3082\u306a\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5e38\u306b\u6700\u65b0\u7248\u3067\u5229\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

<\/span>ratelimit \u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u3044\u65b9<\/span><\/h2>\n\n\n\n

\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u304c\u6709\u52b9\u5316\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u306f\u3001ratelimit status \u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
ratelimit \u306e\u5168\u30b3\u30de\u30f3\u30c9\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7701\u7565\u3057\u305f\u5834\u5408\u306f\u3001\u30ab\u30ec\u30f3\u30c8\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

$ kusanagi ratelimit status\nratelimit is on.\nratelimit completed<\/code><\/pre><\/div>\n\n\n\n
\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u3092\u6709\u52b9\u5316\u3059\u308b\u5834\u5408\u306f\u3001ratelimit on\u3001\u7121\u52b9\u5316\u3059\u308b\u5834\u5408\u306f\u3001ratelimit off \u30b3\u30de\u30f3\u30c9\u3067\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
$ kusanagi ratelimit on\nreload completed.\nratelimit completed.<\/code><\/pre><\/div>\n\n\n\n
$ kusanagi ratelimit off\nreload completed.\nratelimit completed.<\/code><\/pre><\/div>\n\n\n\n
\u53c2\u7167\uff1ahttps:\/\/kusanagi.tokyo\/kusanagi9\/document\/commands\/#ratelimit_status<\/a><\/p>\n\n\n\n
<\/span>ratelimit \u306b\u3088\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u4ed5\u69d8\u306b\u3064\u3044\u3066<\/span><\/h2>\n\n\n\n
KUSANAGI \u306e\u5171\u901a\u3067\u9069\u7528\u3055\u308c\u308b\u8a2d\u5b9a\u306e nginx.conf \u306b\u306f\u3001limit_req_zone \u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306e\u8a18\u8f09\u304c\u3042\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
limit_req_zone $remote_addr$http_x_forwarded_for zone=one:10m rate=100r\/s;<\/code><\/pre><\/div>\n\n\n\n
$remote_addr$http_x_forwarded_for \u306e\u90e8\u5206\u304c\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u5bfe\u8c61\u3068\u306a\u308b\u90e8\u5206\u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u5143IP\u304c\u4ee3\u5165\u3055\u308c\u308b $remote_addr \u3068\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u7b49\u306e\u5229\u7528\u6642\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u5143IP\u304c\u4ee3\u5165\u3055\u308c\u308b $http_x_forwarded_for \u3092\u7d50\u5408\u3057\u305f\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d0\u5358\u4f53\u3067\u306e\u5229\u7528\u6642\u3060\u3051\u3067\u306a\u304f\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3084CDN\u3001\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u74b0\u5883\u306b\u304a\u3044\u3066\u3082\u3001\u554f\u984c\u306a\u304f\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u7d9a\u304f zone=one:10m \u306e\u90e8\u5206\u304c\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u72b6\u614b\u3092\u4fdd\u6301\u3057\u3066\u304a\u304f\u30e1\u30e2\u30ea\u9818\u57df\u306b\u95a2\u3059\u308b\u8a2d\u5b9a\u3068\u306a\u3063\u3066\u3044\u3066\u3001one \u304c\u9818\u57df\u540d\u300110m \u304c\u30b5\u30a4\u30ba\u3067 10MB\u306e\u9818\u57df\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002one \u3068\u3044\u3046\u540d\u524d\u306e\u30e1\u30e2\u30ea\u9818\u57df 10MB\u3092\u78ba\u4fdd\u3057\u3001\u305d\u3053\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u5bfe\u8c61\uff08$remote_addr$http_x_forwarded_for\uff09\u3054\u3068\u306b\u3001\u6700\u65b0\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u5b9f\u7e3e\u3092\u4fdd\u6301\u3057\u307e\u3059\u300210MB\u306e\u9818\u57df\u3067\u306f\u3001\u304a\u3088\u305d160,000 \u4ef6\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u5bfe\u8c61\u3092\u4fdd\u6301\u3067\u304d\u3001\u904b\u7528\u4e0a\u5fc5\u8981\u5341\u5206\u306a\u8a2d\u5b9a\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
rate=100r\/s \u306e\u90e8\u5206\u304c\u3001\u3057\u304d\u3044\u5024\u306e\u8a2d\u5b9a\u3067\u30011\u79d2\u9593\u306b100\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u4e0a\u9650\u5024\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u79d2\u9593100\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u591a\u3044\u3088\u3046\u306b\u601d\u308f\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001WordPress \u306e\u7ba1\u7406\u753b\u9762\u3067\u306eAPI\u30ea\u30af\u30a8\u30b9\u30c8\u306a\u3069\u3092\u8003\u616e\u3059\u308b\u3068\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3053\u306e\u304f\u3089\u3044\u304c\u554f\u984c\u304c\u8d77\u304d\u306b\u304f\u3044\u5024\u3068\u3057\u3066\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u3068\u3081\u308b\u3068\u3001KUSANAGI \u74b0\u5883\u306e ratelimit \u306f\u3001\u6700\u65b0\u306e\u304a\u3088\u305d160,000\u4ef6\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u5bfe\u8c61\uff08$remote_addr$http_x_forwarded_for\uff09\u306b\u5bfe\u3057\u3066\u3001\u79d2\u9593100\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u8d85\u3048\u305f\u5834\u5408\u306b\u5236\u9650\u5bfe\u8c61\u3068\u5224\u65ad\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u6b21\u306b\u3001\u5236\u9650\u3092\u304b\u3051\u308bURL\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u30d7\u30ed\u30d3\u30b8\u30e7\u30f3\u3057\u305f\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u3001limit_req \u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u304c\u8a18\u8f09\u3055\u308c\u305f ratelimit.inc \u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3059\u308b\u8a18\u8ff0\u304c\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u306e\u8a18\u8ff0\u306f\u3001\u62e1\u5f35\u5b50\u304c php\u3001\u3082\u3057\u304f\u306f cgi \u306e location \u30c7\u30a3\u30ec\u30c6\u30a3\u30d6\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001php \u3084 cgi \u304c\u52d5\u4f5c\u3059\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5236\u9650\u5bfe\u8c61\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u9006\u306b\u3044\u3046\u3068\u3001html \u3084 js\u3001css \u3068\u3044\u3063\u305f\u9759\u7684\u30ea\u30bd\u30fc\u30b9\u306b\u5bfe\u3057\u3066\u306e\u5236\u9650\u306f\u884c\u3063\u3066\u3044\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u9759\u7684\u30ea\u30bd\u30fc\u30b9\u3088\u308a php \u3084 cgi \u306e\u65b9\u304c\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3042\u305f\u308a\u306e\u51e6\u7406\u8ca0\u8377\u304c\u5727\u5012\u7684\u306b\u9ad8\u304f\u3001DoS\u653b\u6483\u306b\u5bfe\u3057\u3066\u306e\u5f31\u70b9\u306b\u306a\u308a\u3084\u3059\u3044\u3053\u3068\u3068\u3001\u9759\u7684\u30ea\u30bd\u30fc\u30b9\u306f\u3001\u30b5\u30a4\u30c8\u3054\u3068\u306b\u3088\u3063\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u306e\u5dee\u7570\u304c\u5927\u304d\u3044\u305f\u3081\u3001\u3057\u304d\u3044\u5024\u3092\u5224\u65ad\u3057\u306b\u304f\u3044\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n
include conf.d\/ratelimit.inc;<\/code><\/pre><\/div>\n\n\n\n
\u6700\u5f8c\u306b\u3001\u5b9f\u969b\u306b\u5236\u9650\u3092\u304b\u3051\u308b limit_req \u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u89e3\u8aac\u3044\u305f\u3057\u307e\u3059\u3002
ratelimit.inc \u306b\u306f\u4ee5\u4e0b\u306e\u8a18\u8f09\u304c\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002zone \u306f\u3001\u9818\u57df\u540d\u306e\u6307\u5b9a\u3067\u3001limit_req_zone \u3067\u8a2d\u5b9a\u3055\u308c\u305f\u9818\u57df\u540d\u306e one \u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002burst \u306f\u3001\u3057\u304d\u3044\u5024\u3092\u8d85\u3048\u305f\u969b\u306e\u4e00\u6642\u7684\u7de9\u548c\u63aa\u7f6e\u306e\u5024\u3067\u3001\u79d2\u9593100\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u8d85\u3048\u308b\u3088\u3046\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3082\u300110\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u6b63\u5e38\u51e6\u7406\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002nodelay \u306f\u3001\u4e0a\u9650\u5024\u3092\u8d85\u3048\u305f\u5834\u5408\u306b\u9045\u5ef6\u51e6\u7406\u3092\u3057\u306a\u3044\u3068\u3044\u3046\u8a2d\u5b9a\u3067\u3001\u3057\u304d\u3044\u5024 + burst \u306e 10 \u3092\u8d85\u3048\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u3001\u5373\u5ea7\u306b 503 \u30a8\u30e9\u30fc\u3092\u8fd4\u3059\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
limit_req zone=one burst=10 nodelay;<\/code><\/pre><\/div>\n\n\n\n
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\u203b \u672c\u8a18\u4e8b\u306f\u30012023\u5e743\u6708\u6642\u70b9\u3067\u306e\u4ed5\u69d8\u3068\u306a\u308a\u307e\u3059\u3002\u4eca\u5f8c\u306e\u6539\u8a02\u306b\u3088\u3063\u3066\u5909\u308f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u3054\u7559\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u3093\u306b\u3061\u306f\u3001\u6280\u8853\u62c5\u5f53\u57f7\u884c\u5f79\u54e1\u306e\u5927\u66f2\u3067\u3059\u3002 \u4eca\u56de\u306f\u3001KUSANAGI \u306e ratelimit \u30b3\u30de\u30f3\u30c9\u3067\u5b9f\u65bd\u3067\u304d\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u5236\u9650\u306e\u30b3\u30de\u30f3\u30c9\u3001\u304a ... 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