{"id":13913,"date":"2025-10-12T13:24:55","date_gmt":"2025-10-12T11:24:55","guid":{"rendered":"https:\/\/webhosting.de\/fail2ban-plesk-anleitung-server-security-guarded\/"},"modified":"2025-10-12T13:24:55","modified_gmt":"2025-10-12T11:24:55","slug":"fail2ban-plesk-%e5%91%bd%e4%bb%a4%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%81%ae%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e4%bf%9d%e8%ad%b7","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/fail2ban-plesk-anleitung-server-security-guarded\/","title":{"rendered":"Plesk\u3067Fail2Ban\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5 - \u308f\u305a\u304b\u6570\u30af\u30ea\u30c3\u30af\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a"},"content":{"rendered":"<p><strong>Fail2Ban Plesk<\/strong> Fail2Ban\u306f\u3001\u308f\u305a\u304b\u6570\u30af\u30ea\u30c3\u30af\u3067\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u304b\u3089Plesk\u30b5\u30fc\u30d0\u74b0\u5883\u3092\u52b9\u679c\u7684\u306b\u4fdd\u8b77\u3057\u3001\u7591\u308f\u3057\u3044IP\u3092\u81ea\u52d5\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002Fail2Ban\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3001\u30b8\u30a7\u30a4\u30eb\u306e\u6709\u52b9\u5316\u3001\u30eb\u30fc\u30eb\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3001\u901a\u77e5\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3092\u9806\u3092\u8ffd\u3063\u3066\u8aac\u660e\u3057\u307e\u3059\u3002 <strong>\u30b5\u30fc\u30d0\u30fc<\/strong> \u306f\u6c38\u4e45\u306b\u30af\u30ea\u30fc\u30f3\u306a\u307e\u307e\u3067\u3042\u308b\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/10\/fail2ban-plesk-einrichten-8137.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<p>\u30d1\u30cd\u30eb\u3067\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u8a73\u3057\u304f\u8aac\u660e\u3059\u308b\u524d\u306b\u3001\u4ee5\u4e0b\u306e\u30ad\u30fc\u30dd\u30a4\u30f3\u30c8\u3067\u6982\u8981\u3092\u30b3\u30f3\u30d1\u30af\u30c8\u306b\u8aac\u660e\u3059\u308b\u3002\u6b63\u3057\u3044\u8a2d\u5b9a\u65b9\u6cd5 <strong>\u512a\u5148\u9806\u4f4d<\/strong> \u6700\u521d\u304b\u3089<\/p>\n<ul>\n  <li><strong>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/strong> \u30c4\u30fc\u30eb\uff06\u8a2d\u5b9a\u300d\u7d4c\u7531\u3067\u3001\u5373\u5ea7\u306b\u6709\u52b9\u5316<\/li>\n  <li><strong>\u5211\u52d9\u6240<\/strong> SSH\u3001\u30e1\u30fc\u30eb\u3001Plesk\u30d1\u30cd\u30eb\u3001WordPress\u306b\u7279\u5316\u3057\u3066\u4f7f\u7528\u3059\u308b<\/li>\n  <li><strong>\u30d1\u30e9\u30e1\u30fc\u30bf<\/strong> \u7981\u6b62\u6642\u9593\u3001\u691c\u51fa\u30a6\u30a3\u30f3\u30c9\u30a6\u3001\u5931\u6557\u3057\u305f\u8a66\u884c\u306a\u3069<\/li>\n  <li><strong>\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8<\/strong> \u4fe1\u983c\u3067\u304d\u308bIP\u306e\u7dad\u6301\u3068\u30d6\u30ed\u30c3\u30af\u306e\u30c1\u30a7\u30c3\u30af<\/li>\n  <li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong> \u30ed\u30b0\u306e\u5fae\u8abf\u6574\u3092\u884c\u3044\u3001\u8aa4\u5831\u3092\u6e1b\u3089\u3059\u3002<\/li>\n<\/ul>\n\n<h2>Fail2Ban\u306f\u4f55\u3092\u3059\u308b\u306e\u304b - \u7c21\u5358\u306a\u8aac\u660e<\/h2>\n\n<p>Fail2Ban\u306e\u5206\u6790 <strong>\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong> SSH\u3001\u30e1\u30fc\u30eb\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3001Plesk\u30d1\u30cd\u30eb\u306a\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u8a66\u884c\u304c\u7e70\u308a\u8fd4\u3057\u5931\u6557\u3059\u308b\u3053\u3068\u3092\u8a8d\u8b58\u3057\u307e\u3059\u3002IP\u304c\u5b9a\u7fa9\u3055\u308c\u305f\u3057\u304d\u3044\u5024\u3092\u8d85\u3048\u305f\u5834\u5408\u3001\u8a2d\u5b9a\u3055\u308c\u305f\u671f\u9593\u3001\u81ea\u52d5\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u3001\u8f9e\u66f8\u653b\u6483\u3001\u81ea\u52d5\u30b9\u30ad\u30e3\u30f3\u3092\u6700\u5c0f\u9650\u306e\u52b4\u529b\u3067\u78ba\u5b9f\u306b\u9632\u3044\u3067\u3044\u307e\u3059\u3002 <strong>\u652f\u51fa<\/strong>.Plesk\u306f\u660e\u78ba\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u305d\u3053\u3067\u30b8\u30a7\u30a4\u30eb\u306e\u30aa\u30f3\/\u30aa\u30d5\u3092\u5207\u308a\u66ff\u3048\u305f\u308a\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8abf\u6574\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u751f\u7523\u6027\u306e\u9ad8\u3044\u30b5\u30fc\u30d0\u306b\u3068\u3063\u3066\u3001\u3053\u306e\u4fdd\u8b77\u306f\u6700\u3082\u8fc5\u901f\u306a\u5bfe\u7b56\u306e1\u3064\u3067\u3042\u308a\u3001\u9855\u8457\u306a\u52b9\u679c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n<h2>Plesk\u3078\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff1a\u524d\u63d0\u6761\u4ef6\u3068\u958b\u59cb<\/h2>\n\n<p>\u73fe\u5728\u306ePlesk\u30b5\u30fc\u30d0\u30fc\u306f <strong>\u30ea\u30ca\u30c3\u30af\u30b9<\/strong>\u3092Obsidian\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u307e\u305aFail2Ban\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u3059\u3067\u306b\u5b58\u5728\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001Plesk\u306e\u300c\u30c4\u30fc\u30eb\u3068\u8a2d\u5b9a\u300d\u3092\u958b\u304d\u3001\u300c\u66f4\u65b0\u3068\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u300d\u304b\u3089\u300c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u8ffd\u52a0\u3068\u524a\u9664\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u305d\u3053\u3067Fail2Ban\u306e\u30a8\u30f3\u30c8\u30ea\u3092\u6709\u52b9\u306b\u3057\u3066\u3001Fail2Ban\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002 <strong>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/strong>.\u5b8c\u4e86\u3059\u308b\u3068\u3001\u30d6\u30ed\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\uff08Fail2Ban\uff09\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u3001\u3053\u306e\u6a5f\u80fd\u3092\u30aa\u30f3\u306b\u3057\u3066\u76e3\u8996\u3059\u308b\u3002\u5b8c\u5168\u306a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u305f\u3081\u306b\u3001\u79c1\u306fFail2Ban\u3068\u3046\u307e\u304f\u8a2d\u5b9a\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/plesk%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab%e8%a8%ad%e5%ae%9a%e3%82%b9%e3%83%86%e3%83%83%e3%83%97%e3%83%90%e3%82%a4%e3%82%b9%e3%83%86%e3%83%83%e3%83%97%e4%bf%9d\/\">Plesk\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a<\/a>.<\/p>\n\n<h2>\u57fa\u672c\u8a2d\u5b9a\uff1a\u9069\u5207\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u9078\u629e<\/h2>\n\n<p>\u30b9\u30a4\u30c3\u30c1\u3092\u5165\u308c\u305f\u5f8c\u3001\u79c1\u306f\u52b9\u679c\u3068\u8aa4\u5831\u3092\u6c7a\u5b9a\u3059\u308b\u30b0\u30ed\u30fc\u30d0\u30eb\u30fb\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u30d0\u30e9\u30f3\u30b9\u306e\u53d6\u308c\u305f <strong>\u7981\u6b62\u6642\u9593<\/strong> \u6b63\u5f53\u306a\u30e6\u30fc\u30b6\u30fc\u3092\u6c38\u4e45\u306b\u7de0\u3081\u51fa\u3059\u3053\u3068\u306a\u304f\u3001\u653b\u6483\u8005\u3092\u7de0\u3081\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u691c\u51fa\u30a6\u30a3\u30f3\u30c9\u30a6\u306f\u3001Fail2Ban\u304c\u5931\u6557\u3057\u305f\u8a66\u884c\u3092\u53ce\u96c6\u3059\u308b\u6642\u9593\u3092\u5236\u5fa1\u3057\u3001\u5931\u6557\u3057\u305f\u8a66\u884c\u306e\u6700\u5927\u6570\u306f\u3001\u30d6\u30ed\u30c3\u30af\u306e\u3057\u304d\u3044\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u91cd\u8981\u306a\u30a4\u30d9\u30f3\u30c8\u3092\u3059\u3050\u306b\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u901a\u77e5\u7528\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u8868\u306f\u3001\u591a\u304f\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u8a3c\u660e\u3055\u308c\u3001\u3044\u3064\u3067\u3082\u6539\u826f\u3067\u304d\u308b\u4e00\u822c\u7684\u306a\u958b\u59cb\u5024\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n      <th>\u63a8\u85a6<\/th>\n      <th>\u52b9\u679c<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td><strong>\u7981\u6b62\u6642\u9593<\/strong><\/td>\n      <td>600\uff5e1800\u79d2<\/td>\n      <td>\u30e6\u30fc\u30b6\u30fc\u3092\u6c38\u4e45\u306b\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u653b\u6483\u8005\u3092\u9855\u8457\u306b\u30d6\u30ed\u30c3\u30af<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u8a8d\u8b58\u30a6\u30a3\u30f3\u30c9\u30a6<\/strong><\/td>\n      <td>300\uff5e600\u79d2<\/td>\n      <td>\u5408\u7406\u7684\u306a\u671f\u9593\u3067\u306e\u30c6\u30b9\u30c8\u306e\u96c6\u8a08<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u30de\u30c3\u30af\u30b9\u5931\u6557\u3057\u305f\u8a66\u884c<\/strong><\/td>\n      <td>3-5<\/td>\n      <td>\u507d\u967d\u6027\u3092\u6e1b\u3089\u3057\u3001\u306a\u304a\u304b\u3064\u53b3\u683c\u3055\u3092\u4fdd\u3064<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u304a\u77e5\u3089\u305b<\/strong><\/td>\n      <td>\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u6709\u52b9\u5316<\/td>\n      <td>\u30ed\u30c3\u30af\u30c0\u30a6\u30f3\u3084\u91cd\u8981\u306a\u30a4\u30d9\u30f3\u30c8\u306b\u95a2\u3059\u308b\u8b66\u544a<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<p>\u52a0\u3048\u3066\u3001\u79c1\u306f\u5192\u982d\u3067 <strong>\u7121\u8996\u30ea\u30b9\u30c8<\/strong> (\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\uff09\u3092\u30b0\u30ed\u30fc\u30d0\u30eb\u30ec\u30d9\u30eb\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u30c4\u30fc\u30eb\u3068\u8a2d\u5b9a\uff1e\u30d6\u30ed\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3067\u3001\u79c1\u306f\u9759\u7684\u306a\u30aa\u30d5\u30a3\u30b9IP\u30a2\u30c9\u30ec\u30b9\u3001VPN\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3001\u307e\u305f\u306f\u7ba1\u7406\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5165\u529b\u3057\u307e\u3059\u3002IPv6\u306b\u3064\u3044\u3066\u306f\u3001\u4e00\u8cab\u6027\u306e\u3042\u308b\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\uff08\/64\u306a\u3069\uff09\u3092\u6ce8\u610f\u3057\u3066\u4f7f\u7528\u3057\u3001\u4fdd\u8b77\u304c\u640d\u306a\u308f\u308c\u306a\u3044\u3088\u3046\u306b\u30ea\u30b9\u30c8\u3092\u7121\u99c4\u306e\u306a\u3044\u3082\u306e\u306b\u3057\u3066\u3044\u308b\u3002\u7e70\u308a\u8fd4\u3057\u554f\u984c\u3092\u8d77\u3053\u3059\u4eba\u306b\u306f <strong>\u7981\u6b62\u6642\u9593\u306e\u5897\u52a0<\/strong> \u3092\u8a3c\u660e\u3057\u305f\uff1a\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u3042\u308b\u3002 <code>bantime.increment = true<\/code>, <code>\u30d0\u30f3\u30bf\u30a4\u30e0\u30fb\u30d5\u30a1\u30af\u30bf\u30fc<\/code> \u305d\u3057\u3066 <code>\u30d0\u30f3\u30bf\u30a4\u30e0\u30fb\u30de\u30af\u30b9\u30bf\u30a4\u30e0<\/code> \u7e70\u308a\u8fd4\u305b\u3070\u81ea\u52d5\u7684\u306b\u30ed\u30c3\u30af\u304c\u4f38\u3073\u308b\u306e\u3067\u3001\u52b9\u679c\u304c\u6301\u7d9a\u3059\u308b\u3002<\/p>\n\n<h2>\u5211\u52d9\u6240\uff1a\u30b5\u30fc\u30d3\u30b9\u306e\u5bfe\u8c61\u3068\u306a\u308b\u4fdd\u8b77<\/h2>\n\n<p>\u76e3\u7344\u30bf\u30d6\u3067\u3001\u6700\u3082\u91cd\u8981\u306a\u4fdd\u8b77\u30eb\u30fc\u30eb\u3092\u6709\u52b9\u306b\u3059\u308b\u3002 <strong>\u30b5\u30fc\u30d3\u30b9\u5185\u5bb9<\/strong>sshd, dovecot, proftpd, plesk-apache, plesk-panel \u3068 plesk-wordpress \u3067\u3059\u3002\u5404\u30b8\u30a7\u30a4\u30eb\u306f\u3001\u4e00\u81f4\u3059\u308b\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u76e3\u8996\u3057\u3001\u30d1\u30bf\u30fc\u30f3\u3092\u8a8d\u8b58\u3057\u3001\u76ee\u7acb\u3064IP\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002WordPress\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u3042\u308b\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001wp-login\u3068xmlrpc\u306e\u30ed\u30b0\u30a4\u30f3\u653b\u6483\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u305f\u3081\u306b\u3001plesk-wordpress\u3092\u30aa\u30f3\u306b\u3059\u308b\u3002FTP\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u4e0d\u8981\u306a\u30c1\u30a7\u30c3\u30af\u3092\u884c\u308f\u306a\u3044\u3088\u3046\u306b\u3001\u95a2\u9023\u3059\u308b\u30b8\u30a7\u30a4\u30eb\u3092\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u3059\u308b\u3002\u305d\u3057\u3066\u3001\u30d6\u30ed\u30c3\u30af\u304c\u78ba\u5b9f\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u8aa4\u691c\u77e5\u304c\u591a\u3051\u308c\u3070\u95be\u5024\u3092\u8abf\u6574\u3057\u307e\u3059\u3002<\/p>\n\n<p>\u30aa\u30ea\u30a8\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3: sshd \u306f\u901a\u5e38\u3001\u6b21\u306e\u5834\u6240\u304b\u3089\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002 <code>\/var\/log\/auth.log<\/code> (Debian\/Ubuntu)\u307e\u305f\u306f <code>\/var\/log\/secure<\/code> (RHEL\/Alma\/Rocky)\u3067\u306f\u3001\u30e1\u30fc\u30eb\u30ed\u30b0\u30a4\u30f3\u306f\u7d50\u5c40 <code>\/var\/log\/maillog<\/code> \u305d\u308c\u305e\u308c <code>\/var\/log\/mail.log<\/code>\u30d1\u30cd\u30eb\u304c\u30ed\u30b0\u30a4\u30f3\u3059\u308b <code>\/var\/log\/plesk\/panel.log<\/code>.Web \u653b\u6483\u306e\u5834\u5408\u3001Plesk jail \u306f\u4ee5\u4e0b\u306e\u30d0\u30fc\u30c1\u30e3\u30eb\u30db\u30b9\u30c8\u30ed\u30b0\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002 <code>\/var\/www\/vhosts\/system\/\/logs\/<\/code> \u306b\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002NGINX \u307e\u305f\u306f Apache+NGINX \u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u307f\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u9069\u5207\u306a\u30d1\u30b9\u304c\u3059\u3067\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001Plesk \u30d5\u30a3\u30eb\u30bf\u306f\u5f15\u304d\u7d9a\u304d\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/10\/fail2ban_plesk_meeting_8392.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u72ec\u81ea\u306e\u30b8\u30a7\u30a4\u30eb\u3068\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u30af\u30ea\u30fc\u30f3\u306b\u4f5c\u6210<\/h2>\n\n<p>\u8ffd\u52a0\u3067\u5fc5\u8981\u3067\u3059\u304b\uff1f <strong>\u4fdd\u8b77<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u305f\u3081\u306b\u3001\u79c1\u306f\u65b0\u3057\u3044jail\u3092\u4f5c\u6210\u3057\u3001\u95a2\u9023\u3059\u308b\u30ed\u30b0\u3092\u53c2\u7167\u3057\u307e\u3059\u3002\u79c1\u306f\u3001\u660e\u78ba\u306a\u30bf\u30a4\u30e0\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u5b9a\u7fa9\u3057\u3001\u5931\u6557\u306e\u9650\u754c\u3092\u8a2d\u5b9a\u3057\u3001\u671b\u307e\u3057\u3044\u7981\u6b62\u6642\u9593\u3092\u6c7a\u5b9a\u3059\u308b\u3002\u7279\u5225\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u305f\u3081\u306b\u3001\u79c1\u306f\u7279\u5b9a\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8a8d\u8b58\u3059\u308b\u6b63\u898f\u8868\u73fe\u3067\u30d5\u30a3\u30eb\u30bf\u3092\u66f8\u304f\u3002\u30eb\u30fc\u30eb\u3092\u6709\u52b9\u306b\u3057\u305f\u5f8c\u3001\u5931\u6557\u3057\u305f\u8a66\u307f\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u30ed\u30b0\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u30c6\u30b9\u30c8\u3059\u308b\u3002\u653b\u6483\u8005\u304c\u8fc2\u56de\u3067\u304d\u308b\u30d1\u30bf\u30fc\u30f3\u306b\u6c17\u3065\u3044\u305f\u3089\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u6539\u826f\u3057\u3001\u305d\u306e\u5909\u66f4\u3092\u30ed\u30b0\u306b\u8a18\u9332\u3059\u308b\u3002 <strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3<\/strong>.<\/p>\n\n<p>\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u30bb\u30fc\u30d5\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306b\u3001\u79c1\u306f <strong>\u72ec\u81ea\u306e\u69cb\u6210<\/strong> \u306b\u65bc\u3044\u3066 <code>\/etc\/fail2ban\/jail.d\/<\/code> \u3092\u5225\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\uff08\u4f8b <code>\u30ab\u30b9\u30bf\u30e0\u30fb\u30ef\u30fc\u30c9\u30d7\u30ec\u30b9\u30fb\u30ed\u30fc\u30ab\u30eb<\/code>)\u306e\u6a19\u6e96\u30d5\u30a1\u30a4\u30eb\u3092\u5909\u66f4\u3059\u308b\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3046\u3059\u308c\u3070\u3001Plesk\u3084\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u30eb\u30fc\u30eb\u304c\u4e0a\u66f8\u304d\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d5\u30a3\u30eb\u30bf\u30eb\u30fc\u30eb\u3092\u30c6\u30b9\u30c8\u3059\u308b\u306b\u306f <code>fail2ban-regex<\/code> \u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306bjail\u3092\u5207\u308a\u66ff\u3048\u308b\u524d\u306b\u3001\u30b5\u30f3\u30d7\u30eb\u30ed\u30b0\u3068\u6bd4\u8f03\u3057\u307e\u3059\u3002\u5909\u66f4\u5f8c <code>systemctl reload fail2ban<\/code>\u30cf\u30fc\u30c9\u30ea\u30b9\u30bf\u30fc\u30c8\u306a\u3057\u3067\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u3059\u308b\u3002<\/p>\n\n<h2>\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u3001\u30d6\u30ed\u30c3\u30af\u306e\u89e3\u9664\u3001\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305fIP\u306e\u628a\u63e1<\/h2>\n\n<p>\u81ea\u5206\u81ea\u8eab\u3084\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u30fc\u3092\u30d6\u30ed\u30c3\u30af\u3057\u305f\u5834\u5408\u306f\u3001\u30d6\u30ed\u30c3\u30af\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u306e\u30ea\u30b9\u30c8\u3092\u958b\u304d\u3001\u518d\u5ea6\u30d6\u30ed\u30c3\u30af\u3092\u89e3\u9664\u3057\u307e\u3059\u3002\u6052\u4e45\u7684\u306b\u4fe1\u983c\u3067\u304d\u308b\u60c5\u5831\u6e90\u306b\u3064\u3044\u3066\u306f\u3001\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3001\u5c06\u6765\u7684\u306a\u30d6\u30ed\u30c3\u30af\u3092\u9632\u6b62\u3057\u3066\u3044\u308b\u3002 <strong>\u9589\u585e<\/strong>.\u6982\u8981\u3067\u306f\u3001\u3069\u306e\u30b8\u30a7\u30a4\u30eb\u304cIP\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001\u3069\u306e\u30eb\u30fc\u30eb\u3067\u691c\u51fa\u3055\u308c\u305f\u304b\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306f\u79c1\u304c\u8aa4\u3063\u305f\u8a2d\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30dc\u30c3\u30c8\u3092\u8a8d\u8b58\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u79c1\u306f\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u3092\u7121\u99c4\u306e\u306a\u3044\u72b6\u614b\u306b\u4fdd\u3061\u3001\u305d\u3046\u3059\u308b\u6b63\u5f53\u306a\u7406\u7531\u304c\u3042\u308b\u5834\u5408\u306b\u306e\u307f\u30a8\u30f3\u30c8\u30ea\u3092\u7dad\u6301\u3057\u307e\u3059\u3002 <strong>\u7406\u7531<\/strong> \u305d\u3053\u306b<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/10\/fail2ban-plesk-einrichten-sicherheit-2841.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<p>\u306e\u5f8c\u308d\u3067\u50cd\u3044\u3066\u3044\u308b\u306e\u304b\uff1f <strong>\u30d7\u30ed\u30ad\u30b7\/CDN<\/strong>\u79c1\u306f\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u7279\u306b\u6ce8\u610f\u3092\u6255\u3046\uff1a\u30ed\u30b0\u30a4\u30f3\u3068\u30a6\u30a7\u30d6\u30a2\u30af\u30bb\u30b9\u304c\u30b5\u30fc\u30d0\u304b\u3089\u898b\u3066\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u306eIP\u306e\u5f8c\u308d\u306b\u3042\u308b\u5834\u5408\u3001\u4e0d\u6ce8\u610f\u306b\u8a2d\u5b9a\u3055\u308c\u305f\u30b8\u30a7\u30a4\u30eb\u306f\u3001\u6700\u60aa\u306e\u5834\u5408\u3001\u5b9f\u969b\u306e\u653b\u6483\u8005\u306e\u4ee3\u308f\u308a\u306b\u30d7\u30ed\u30ad\u30b7\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3057\u307e\u3046\u3002\u3053\u306e\u5834\u5408\u3001\u79c1\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u304c \"\u672c\u5f53\u306e \"\u30af\u30e9\u30a4\u30a2\u30f3\u30c8IP\u3092\u30ed\u30b0\u306b\u6b63\u3057\u304f\u66f8\u304d\u8fbc\u3080\u3053\u3068\u3092\u78ba\u8a8d\u3057(X-Forwarded-For\/Actual Real-IP\u30e1\u30ab\u30cb\u30ba\u30e0)\u3001\u30d7\u30ed\u30ad\u30b7\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4fe1\u983c\u3067\u304d\u308b\u3082\u306e\u3068\u3057\u3066\u7dad\u6301\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30ed\u30c3\u30af\u306e\u6b63\u78ba\u6027\u304c\u4fdd\u305f\u308c\u307e\u3059\u3002<\/p>\n\n<h2>\u30df\u30b9\u3092\u907f\u3051\u308b\uff1a\u5b9f\u8df5\u304b\u3089\u5f97\u305f\u8ce2\u660e\u306a\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h2>\n\n<p>\u307e\u305a\u306f\u63a7\u3048\u3081\u306b <strong>\u3057\u304d\u3044\u5024<\/strong> \u305d\u3057\u3066\u3001\u5178\u578b\u7684\u306a\u8ca0\u8377\u3068\u4f7f\u7528\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u308f\u304b\u3063\u3066\u304b\u3089\u5024\u3092\u53b3\u3057\u304f\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u30e6\u30fc\u30b6\u304c\u3044\u308b\u5171\u6709\u30db\u30b9\u30c8\u306e\u5834\u5408\u3001\u8aa4\u30d6\u30ed\u30c3\u30af\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308b\u306e\u3067\u3001\u79c1\u306fMaxRetry\u3092\u9ad8\u304f\u8a2d\u5b9a\u3057\u3001\u30ed\u30b0\u3092\u3088\u308a\u6ce8\u610f\u6df1\u304f\u76e3\u8996\u3057\u307e\u3059\u3002\u30dc\u30c3\u30c8\u304c\u30d5\u30a9\u30fc\u30e0\u306b\u5230\u9054\u3059\u308b\u5834\u5408\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u3068plesk-apache jail\u306e\u8ffd\u52a0\u30eb\u30fc\u30eb\u3092\u898b\u3066\u307f\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u79c1\u306f\u7ba1\u7406\u8005\u30ed\u30b0\u30a4\u30f3\u306e\u305f\u3081\u306b2FA\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3057\u3001\u305d\u306e\u7d50\u679c\u3001\u30d1\u30cd\u30eb\u306b\u5230\u7740\u3059\u308b\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u304c\u5c11\u306a\u304f\u306a\u3063\u305f\u306e\u3067\u3001Fail2Ban\u3092\u7de9\u548c\u3057\u305f\u3002\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u5b9a\u671f\u7684\u306b\u898b\u308b\u3053\u3068\u3067\u3001\u500b\u3005\u306e <strong>\u30bd\u30fc\u30b9<\/strong> \u306f\u7279\u306b\u76ee\u7acb\u3063\u3066\u304a\u308a\u3001\u3055\u3089\u306a\u308b\u5bfe\u7b56\u304c\u5fc5\u8981\u3060\u3002<\/p>\n\n<h2>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u7d44\u307f\u5408\u308f\u305b\u3068WordPress\u306e\u5805\u7262\u5316<\/h2>\n\n<p>Fail2Ban\u306f\u8a66\u884c\u304c\u5931\u6557\u3057\u305f\u5f8c\u306b\u653b\u6483\u8005\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u653b\u6483\u5bfe\u8c61\u9818\u57df\u3092\u4e8b\u524d\u306b\u7e2e\u5c0f\u3059\u308b\u3002\u4e21\u8005\u3092\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u52b9\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u3002 <strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>\u7279\u306bSSH\u3084\u30e1\u30fc\u30eb\u30dd\u30fc\u30c8\u304c\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3002WordPress\u306e\u5834\u5408\u3001\u79c1\u306fxmlrpc\u3092\u5236\u9650\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u3067\u30ed\u30b0\u30a4\u30f3\u7387\u306e\u5236\u9650\u3092\u8a2d\u5b9a\u3057\u3001\u6b8b\u308a\u306e\u4f5c\u696d\u306fplesk-wordpress\u306b\u4efb\u305b\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5358\u4e00\u306e\u30d0\u30ea\u30a2\u3067\u306f\u306a\u304f\u3001\u5fb9\u5e95\u7684\u306a\u9632\u5fa1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u3088\u308a\u8a73\u7d30\u306a\u6bd4\u8f03\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\uff1a <a href=\"https:\/\/webhosting.de\/ja\/fail2ban-vs-%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab-%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e4%bf%9d%e8%ad%b7%e6%af%94%e8%bc%83-webhoster\/\">Fail2Ban\u3068\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u6bd4\u8f03<\/a>\u305d\u3057\u3066\u3001\u305d\u306e\u5bfe\u7b56\u3092\u8abf\u6574\u3059\u308b\u624b\u52a9\u3051\u3092\u3057\u3066\u304f\u308c\u308b\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/10\/fail2ban_plesk_nachtbuero_8742.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>Plesk\u7ba1\u7406\u8005\u306e\u305f\u3081\u306e\u5b9f\u7528\u7684\u306a\u30c1\u30a7\u30c3\u30af<\/h2>\n\n<p>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u4e88\u5b9a\u6642\u9593\u5185\u306b\u30ed\u30c3\u30af\u304c\u304b\u304b\u308b\u304b\u3069\u3046\u304b\u3001E\u30e1\u30fc\u30eb\u901a\u77e5\u304c\u5c4a\u304f\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u305d\u306e\u5f8c\u3001\u308f\u3056\u3068\u9593\u9055\u3063\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u3067SSH\u3092\u30c6\u30b9\u30c8\u3057\u3001\u30ed\u30b0\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001SSH\u306e\u6709\u52b9\u6027\u3092\u78ba\u8a8d\u3059\u308b\u3002 <strong>\u5211\u52d9\u6240<\/strong> \u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002Plesk\u30d1\u30cd\u30eb\u3067\u306f\u3001\u30ed\u30b0\u30a4\u30f3\u306b\u4f55\u5ea6\u304b\u5931\u6557\u3059\u308b\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3044\u3001IP\u304c\u901f\u3084\u304b\u306b\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u3092\u89b3\u5bdf\u3057\u307e\u3059\u3002\u6b63\u5f53\u306a\u30d6\u30ed\u30c3\u30af\u304c\u591a\u3059\u304e\u308b\u5834\u5408\u306f\u3001MaxRetry\u3092\u6bb5\u968e\u7684\u306b\u5897\u3084\u3057\u3001\u691c\u51fa\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u9069\u5ea6\u306b\u62e1\u5f35\u3057\u307e\u3059\u3002\u3053\u306e\u4e00\u8cab\u3057\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u8aa4\u5831\u304c\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u3001\u9759\u304b\u306a\u30ed\u30b0\u30a4\u30f3\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002 <strong>\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3<\/strong>.<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u7d71\u5408\uff1a\u79c1\u304c\u6c17\u3092\u3064\u3051\u3066\u3044\u308b\u3053\u3068<\/h2>\n\n<p>\u5f37\u529b\u306a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a\u306f\u3001\u9996\u5c3e\u4e00\u8cab\u3057\u305f\u65b9\u6cd5\u3067Fail2Ban\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u304a\u3088\u3073\u76e3\u8996\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u79c1\u306f\u3001Plesk\u306e\u76f4\u63a5\u7d71\u5408\u3001\u30b5\u30dd\u30fc\u30c8\u306b\u304a\u3051\u308b\u77ed\u3044\u5fdc\u7b54\u6642\u9593\u3001\u304a\u3088\u3073\u660e\u78ba\u306a <strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3<\/strong>.\u5206\u96e2\u3055\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u30fb\u30b3\u30f3\u30c6\u30ca\u3068\u4e00\u8cab\u3057\u305f\u30ab\u30fc\u30cd\u30eb\u30fb\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u5099\u3048\u305f\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001\u79c1\u306b\u3055\u3089\u306a\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u308b\u3002\u751f\u7523\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u7dca\u6025\u6642\u306b\u3059\u3050\u306b\u30aa\u30f3\u30e9\u30a4\u30f3\u306b\u623b\u308c\u308b\u3088\u3046\u3001\u30aa\u30d5\u30b5\u30a4\u30c8\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u3082\u983c\u3063\u3066\u3044\u308b\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u653b\u6483\u3092\u306f\u308b\u304b\u306b\u56f0\u96e3\u306b\u3057\u3001\u5408\u7406\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30ec\u30d9\u30eb\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <strong>\u652f\u51fa<\/strong> \u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/10\/fail2ban-setup-plesk-arbeitsplatz2947.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u5e38\u306b\u72b6\u6cc1\u3092\u628a\u63e1\u3059\u308b\u65b9\u6cd5<\/h2>\n\n<p>\u79c1\u306f\u5b9a\u671f\u7684\u306bFail2Ban\u306e\u6982\u8981\u3092\u5206\u6790\u3057\u3001\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u3082\u306e\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u308b\u3002 <strong>\u4f4f\u6240<\/strong> \u305d\u3057\u3066\u3001\u7e70\u308a\u8fd4\u3055\u308c\u308b\u30bd\u30fc\u30b9\u3092\u8a8d\u8b58\u3059\u308b\u3002\u30d1\u30bf\u30fc\u30f3\u304c\u898b\u3064\u304b\u3063\u305f\u3089\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u30eb\u30fc\u30eb\u3092\u8abf\u6574\u3057\u3001\u5f8c\u3067\u8ffd\u8de1\u3067\u304d\u308b\u3088\u3046\u306b\u5909\u66f4\u3092\u6587\u66f8\u5316\u3059\u308b\u3002\u30ed\u30b0\u306b\u9ad8\u8ca0\u8377\u306e\u30d4\u30fc\u30af\u304c\u3042\u308c\u3070\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306b\u8ffd\u52a0\u306e\u5236\u9650\u3092\u8a2d\u5b9a\u3057\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u5f37\u5316\u3057\u307e\u3059\u3002\u540c\u6642\u306b\u3001Plesk\u3001\u30b7\u30b9\u30c6\u30e0\u30d1\u30c3\u30b1\u30fc\u30b8\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5e38\u306b\u65b0\u9bae\u306a\u72b6\u614b\u306b\u4fdd\u3061\u3001\u653b\u6483\u306e\u53ef\u80fd\u6027\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/plesk%e3%81%af%e3%80%81%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e3%82%ae%e3%83%a3%e3%83%83%e3%83%97%e3%82%92%e9%96%89%e3%81%98%e3%82%8b%e3%83%92%e3%83%b3%e3%83%88%e3%82%92%e3%83%9b\/\">Plesk\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b<\/a>.\u3053\u308c\u306b\u3088\u308a\u3001Fail2Ban \u306e\u4fdd\u8b77\u304c\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u305f\u308c\u3001Fail2Ban \u306e\u5fc5\u8981\u6027\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\u3002 <strong>\u52b4\u50cd<\/strong> \u3092\u5b9f\u884c\u3059\u308b\u3002<\/p>\n\n<h2>Plesk \u3067\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3068\u30d1\u30b9<\/h2>\n\n<p>\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u691c\u51fa\u3092\u884c\u3046\u306b\u306f\u3001Fail2Ban\u304c\u9069\u5207\u306a\u6a5f\u80fd\u3092\u5099\u3048\u3066\u3044\u308b\u3053\u3068\u304c\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002 <strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u30fb\u30bd\u30fc\u30b9<\/strong> \u3092\u8aad\u3080\u3002Linux\u3067\u306f\u3001\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u30ed\u30b0\u304bsystemd\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u4f7f\u3046\u3002\u6700\u8fd1\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u306f <code>\u30d0\u30c3\u30af\u30a8\u30f3\u30c9 = systemd<\/code>Fail2Ban\u306f\u30b8\u30e3\u30fc\u30ca\u30eb\u3092\u76f4\u63a5\u8aad\u307f\u8fbc\u3080\u305f\u3081\u3001\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3078\u306eI\/O\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\u3002Plesk\u306b\u306f\u3001\u3053\u306e\u305f\u3081\u306e\u8ce2\u660e\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u304c\u3059\u3067\u306b\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001\u30b8\u30a7\u30a4\u30eb\u5185\u306e\u30ed\u30b0\u30d1\u30b9\u304c\u73fe\u5b9f\u306b\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002 <code>\/var\/log\/auth.log<\/code> (Debian\/Ubuntu)\u307e\u305f\u306f <code>\/var\/log\/secure<\/code> (RHEL\/Alma\/Rocky)\u3001\u30e1\u30fc\u30eb\u30fb\u30a4\u30f3 <code>\/var\/log\/maillog<\/code> \u6216\u3044\u306f <code>\/var\/log\/mail.log<\/code>\u306ePlesk\u30d1\u30cd\u30eb <code>\/var\/log\/plesk\/panel.log<\/code>vhost\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306eWeb\u3002\u30d1\u30b9\u3084\u30b8\u30e3\u30fc\u30ca\u30eb\u540d\u304c\u6b63\u3057\u304f\u306a\u3044\u5834\u5408\u306f\u3001\u5225\u306e <code>\u30ed\u30fc\u30ab\u30eb<\/code>-\u30d5\u30a1\u30a4\u30eb\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u653b\u6483\u304c\u691c\u77e5\u3055\u308c\u306a\u3044\u307e\u307e\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u76f2\u70b9\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n<h2>IPv6\u3001\u30d0\u30ca\u30af\u30b7\u30e7\u30f3\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30fb\u30d0\u30c3\u30af\u30a8\u30f3\u30c9<\/h2>\n\n<p>\u591a\u304f\u306e\u65bd\u8a2d\u3067\u306f\u3001\u3082\u306f\u3084IPv4\u3060\u3051\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002\u79c1\u306f <strong>\u30d0\u30ca\u30af\u30b7\u30e7\u30f3<\/strong> \u306fIPv6\u306b\u9069\u3057\u3066\u3044\u308b\uff08iptables\/firewalld\u306e\u30de\u30eb\u30c1\u30dd\u30fc\u30c8\u30d0\u30ea\u30a2\u30f3\u30c8\u306a\u3069\uff09\u3002\u30b7\u30b9\u30c6\u30e0\u304cFirewalld\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u79c1\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u306b\u6ce8\u610f\u3092\u6255\u3046\u3002 <code>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30ebcmd-\u30de\u30eb\u30c1\u30dd\u30fc\u30c8<\/code>\u53e4\u5178\u7684\u306aiptables\u306e\u8a2d\u5b9a\u306b\u306f <code>\u30de\u30eb\u30c1\u30dd\u30fc\u30c8<\/code> \u307e\u305f\u306fipset\u30d9\u30fc\u30b9\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002Fail2Ban\u3067\u4f7f\u7528\u3055\u308c\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u306aPlesk\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u4e00\u81f4\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059 - \u305d\u3046\u3067\u306a\u3051\u308c\u3070\u3001\u30d6\u30ed\u30c3\u30af\u306f\u9593\u9055\u3063\u305f\u30c1\u30a7\u30fc\u30f3\u306b\u7d42\u308f\u308b\u304b\u3001\u307e\u305f\u306f\u307e\u3063\u305f\u304f\u52b9\u679c\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u5909\u66f4\u5f8c\u3001\u79c1\u306f\u5177\u4f53\u7684\u306b\u30c6\u30b9\u30c8\u3057\u307e\u3059: \u30c6\u30b9\u30c8IP\u304b\u3089\u306e\u5931\u6557\u3057\u305f\u8a66\u884c\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3001jail\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30af\u30a8\u30ea\u3001\u305d\u3057\u3066\u63a5\u7d9a\u30c6\u30b9\u30c8\u3002IPv6\u30d6\u30ed\u30c3\u30af\u304c\u78ba\u5b9f\u306b\u6a5f\u80fd\u3059\u308c\u3070\u3001\u6df7\u5408\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u898b\u904e\u3054\u3055\u308c\u304c\u3061\u306a\u91cd\u8981\u306a\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<h2>\u30a8\u30b9\u30ab\u30ec\u30fc\u30c8\u3059\u308b\u76e3\u7981\u3068\u9577\u671f\u7684\u306a\u963b\u6b62\uff08\u518d\u72af\uff09<\/h2>\n\n<p>\u7e70\u308a\u8fd4\u3057\u653b\u6483\u3059\u308b\u9078\u624b\u306b\u306f\u3001\u30d7\u30ec\u30c3\u30b7\u30e3\u30fc\u3092\u5f37\u3081\u308b\u3002 <strong>\u7981\u6b62\u6642\u9593\u306e\u5897\u5206<\/strong> (<code>\u30d0\u30f3\u30bf\u30a4\u30e0\u30fb\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8<\/code>)\u306e\u30ed\u30c3\u30af\u306f\u81ea\u52d5\u7684\u306b\u5ef6\u9577\u3055\u308c\u308b\u3002 <code>\u30d0\u30f3\u30bf\u30a4\u30e0\u4fc2\u6570 = 2<\/code> - \u5e38\u8b58\u7684\u306a\u6700\u5927\u5024(<code>\u30d0\u30f3\u30bf\u30a4\u30e0\u30fb\u30de\u30af\u30b9\u30bf\u30a4\u30e0<\/code>).\u307e\u305f <strong>\u5211\u52d9\u6240<\/strong> \u3053\u308c\u306f\u3001\u3088\u308a\u9577\u3044\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u4e2d\u3067\u7570\u306a\u308b\u76e3\u7344\u306b\u4f55\u5ea6\u3082\u73fe\u308c\u308bIP\u3092\u691c\u51fa\u3059\u308b\u3082\u306e\u3067\u3042\u308b\u3002\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306f <em>\u30d5\u30a1\u30a4\u30f3\u30c9\u30bf\u30a4\u30e0<\/em> \u6570\u6642\u9593\u304b\u3089\u6570\u65e5\u306e\u7bc4\u56f2\u3067\u3001\u6570\u65e5\u9593\u306e\u7981\u6b62\u671f\u9593\u304c\u52b9\u679c\u7684\u3067\u3042\u308b\u3053\u3068\u304c\u8a3c\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30ec\u30d9\u30eb\u306f\u3001\u5408\u6cd5\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u3092\u6c38\u4e45\u306b\u6392\u9664\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u5b9a\u671f\u7684\u306b\u623b\u3063\u3066\u304f\u308b\u30dc\u30c3\u30c8\u306b\u5bfe\u3057\u3066\u6301\u7d9a\u7684\u306a\u52b9\u679c\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u3092\u4ecb\u3057\u3066\u4fe1\u983c\u3067\u304d\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3053\u3068\u306b\u5909\u308f\u308a\u306f\u3042\u308a\u307e\u305b\u3093\u3002 <code>\u7121\u8996IP<\/code> \u307e\u305f\u3001\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u901a\u3058\u3066\u52b9\u679c\u3092\u76e3\u8996\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/10\/fail2ban-plesk-setup-7192.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>CLI\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\uff1a\u30c1\u30a7\u30c3\u30af\u3001\u30ea\u30ed\u30fc\u30c9\u3001\u30ed\u30c3\u30af\u89e3\u9664<\/h2>\n\n<p>Plesk\u306f\u4fbf\u5229\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u79c1\u306f\u591a\u304f\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u901f\u3044<\/strong> \u30b3\u30f3\u30bd\u30fc\u30eb\u3092\u4ecb\u3057\u3066\u3068 <code>fail2ban-client\u30b9\u30c6\u30fc\u30bf\u30b9<\/code> \u73fe\u5f79\u306e\u5211\u52d9\u6240\u304c\u898b\u3048\u308b\u3001 <code>fail2ban-client\u30b9\u30c6\u30fc\u30bf\u30b9 &lt;jail<\/code> \u30d6\u30ed\u30c3\u30af\u3055\u308c\u305fIP\u3068\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002\u65b0\u3057\u3044\u30eb\u30fc\u30eb\u306f <code>systemctl reload fail2ban<\/code>\u5fc5\u8981\u3067\u3042\u308c\u3070\u3001\u30b5\u30fc\u30d3\u30b9\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002\u500b\u3005\u306eIP\u3092\u524a\u9664\u3059\u308b<code>fail2ban-client set  unbanip<\/code>\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306a\u304f\uff09\u3002\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0 <code>journalctl -u fail2ban<\/code>\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e0d\u5177\u5408\u306e\u3042\u308b\u30d5\u30a3\u30eb\u30bf\u30fc\u306b\u95a2\u3059\u308b\u60c5\u5831\u306a\u3069\u3001\u6700\u65b0\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u8aad\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u7121\u99c4\u306e\u306a\u3044\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3057\u3001\u4ecb\u5165\u3092\u7c21\u6f54\u306b\u6587\u66f8\u5316\u3057\u3001\u767a\u898b\u3092\u30eb\u30fc\u30eb\u306b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n<h2>\u30d7\u30ed\u30ad\u30b7\/CDN\u3001ModSecurity\u3068WordPress\u306e\u8a73\u7d30\u306e\u80cc\u5f8c\u306b\u3042\u308b\u64cd\u4f5c<\/h2>\n\n<p>\u4eca\u65e5\u3001\u591a\u304f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306f\u3001\u305d\u306e\u80cc\u5f8c\u306b\u3076\u3089\u4e0b\u304c\u3063\u3066\u3044\u308b\u3002 <strong>\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7<\/strong> \u307e\u305f\u306fCDN\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002Fail2Ban\u304c\u5b9f\u969b\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u78ba\u5b9f\u306b\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306b\u3001\u79c1\u306f\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u304c\u30ed\u30b0\u306b\u6b63\u3057\u3044IP\u3092\u8a18\u9332\u3057\u3066\u3044\u308b\u3053\u3068\u3068\u3001\u30d7\u30ed\u30ad\u30b7\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b\u3002\u305d\u3046\u3057\u306a\u3044\u3068\u3001\u610f\u56f3\u305b\u305a\u30a8\u30c3\u30b8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3057\u307e\u3046\u5371\u967a\u6027\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002\u307e\u305f\u3001Plesk\u3067\u306f <strong>ModSecurity<\/strong> (WAF\uff09\uff1aModSecurity\u306fHTTP\u30ec\u30d9\u30eb\u3067\u65e2\u77e5\u306e\u653b\u6483\u30d1\u30bf\u30fc\u30f3\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001Fail2Ban\u306f\u5931\u6557\u3057\u305f\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u3084\u7e70\u308a\u8fd4\u3055\u308c\u308b4xx\/5xx\u30d1\u30bf\u30fc\u30f3\u3092\u5236\u88c1\u3059\u308b\u3002WordPress\u306e\u5834\u5408\u3001\u79c1\u306f2\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u53d6\u3063\u3066\u3044\u308b\uff1axmlrpc\u3092\u5236\u9650\u3059\u308b\u304b\u30bb\u30ad\u30e5\u30a2\u306b\u3059\u308b\u3002 <em>Plesk-Wordpress<\/em>-jail\u3092\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u3059\u308b\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u30ed\u30b0\u306e\u30ce\u30a4\u30ba\u3092\u53d6\u308a\u9664\u304d\u3001Fail2Ban\u306b\u96e3\u3057\u3044\u30b1\u30fc\u30b9\u3092\u72d9\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n<h2>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u6226\u7565<\/h2>\n\n<p>\u8abf\u6574\u3092\u9577\u671f\u7684\u306b\u6301\u7d9a\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u79c1\u306f\u3059\u3079\u3066\u306e\u8abf\u6574\u9805\u76ee\u3092\u4fdd\u7ba1\u3057\u3066\u3044\u308b\u3002 <strong>\u72ec\u81ea\u30eb\u30fc\u30eb<\/strong> \u306e\u4e0b\u306b\u3042\u308b\u5225\u3005\u306e\u30d5\u30a1\u30a4\u30eb\u306b <code>\/etc\/fail2ban\/jail.d\/<\/code> 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