{"id":12409,"date":"2024-12-16T07:32:03","date_gmt":"2024-12-16T07:32:03","guid":{"rendered":"https:\/\/outbyte.com\/blog\/?p=12409"},"modified":"2025-02-13T06:31:49","modified_gmt":"2025-02-13T06:31:49","slug":"what-to-do-about-err_connection_refused-error-in-chrome-ja","status":"publish","type":"post","link":"https:\/\/outbyte.com\/blog\/ja\/what-to-do-about-err_connection_refused-error-in-chrome-ja\/","title":{"rendered":"Chrome\u3067ERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306e\u5bfe\u51e6\u65b9\u6cd5"},"content":{"rendered":"\n<p>ERR_CONNECTION_REFUSED\u306f\u3001Chrome\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u4e2d\u306b\u7d4c\u9a13\u3059\u308b\u4e00\u822c\u7684\u306a\u554f\u984c\u306e1\u3064\u3067\u3059\u3002\u3053\u308c\u306f\u63a5\u7d9a\u6027\u306e\u554f\u984c\u3067\u3042\u308b\u305f\u3081\u3001\u57fa\u672c\u7684\u306b\u306f\u3001\u8981\u6c42\u3055\u308c\u305f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u306e\u63a5\u7d9a\u78ba\u7acb\u8981\u6c42\u3092\u62d2\u5426\u3057\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%BD%95ERR_CONNECTION_REFUSED%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%AB%E3%82%AF%E3%83%AD%E3%83%BC%E3%83%A0\"><\/span>\u4f55ERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u306b\u30af\u30ed\u30fc\u30e0?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Chrome\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u95b2\u89a7\u3057\u3066\u3044\u308b\u3068\u3001\u63a5\u7d9a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u306a\u554f\u984c\u306e1\u3064\u306f\u300cErr_Connection_Closed\u300d\u307e\u305f\u306f\u300cErr_Connection_Refused\u300d\u30a8\u30e9\u30fc\u3067\u3001Web\u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306f\u901a\u5e38\u3001\u4e0d\u9069\u5207\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3084\u4e92\u63db\u6027\u306e\u306a\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a3c\u660e\u66f8\u304c\u539f\u56e0\u3067\u767a\u751f\u3057\u307e\u3059\u3002\u5e78\u3044\u306a\u3053\u3068\u306b\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3057\u3066\u518d\u3073\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u65b9\u6cd5\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>Chrome\u304c\u300cErr_Connection_Refused\u300d\u3068\u8868\u793a\u3059\u308b\u5834\u5408\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u8981\u6c42\u3055\u308c\u305f\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30cd\u30c3\u30c8\u30b5\u30fc\u30d5\u30a3\u30f3\u3092\u7d9a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u540c\u3058\u30a8\u30e9\u30fc\u306f\u4ed6\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u767a\u751f\u3057\u307e\u3059\u304c\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30af\u30ed\u30fc\u30e0\u3067\u306f\u3001\u300cDNS_PROBE_FINISHED_NXDOMAIN\u300d\u3001\u3064\u307e\u308a\u30c9\u30e1\u30a4\u30f3\u304c\u5b58\u5728\u3057\u306a\u3044\u3068\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n\n\n\n<li>Firefox\u3067\u306f \u300cFirefox can&#8217;t establish a connection to the server at domain.com \u300d\u3068\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n\n\n\n<li>Microsoft Edge\u306f \u300cHmmm\u2026 can&#8217;t reach this page. \u300d\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u6b63\u3057\u3044\u30a6\u30a7\u30d6\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff1adomain.com.&#8221; \u3068\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u5fc5\u305a\u3057\u3082\u6709\u76ca\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u52b9\u679c\u7684\u306a\u4fee\u6b63\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%A9%E3%81%86%E3%81%97%E3%81%A6%E8%B5%B7%E3%81%93%E3%82%8BERR_CONNECTION_REFUSED%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%AB%E3%82%AF%E3%83%AD%E3%83%BC%E3%83%A0\"><\/span>\u3069\u3046\u3057\u3066\u8d77\u3053\u308bERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u306b\u30af\u30ed\u30fc\u30e0?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4e0b\u8a18\u306e\u3088\u3046\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u306e\u539f\u56e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b5\u30fc\u30d0\u30fc\u306e\u30b5\u30a4\u30c8\u3092\u3084\u308a\u4f53\u9a13\u3082\u8ab2\u984c\u3067\u3059\u3002<\/li>\n\n\n\n<li>\u4e00\u90e8\u8aa4\u3063\u305f\u30d7\u30ed\u30ad\u30b7\u306e\u8a2d\u5b9a\u306e\u9632\u6b62\u306e\u7d99\u7d9a\u3092\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30af\u30c3\u30ad\u30fc\u306e\u59a8\u3052\u306e\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3063\u3066\u3044\u305f\u3060\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u5f53\u30b5\u30a4\u30c8\u306f\u8a31\u53ef\u3057\u306a\u3044\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u901a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>DNS\u306e\u8a2d\u5b9a\u307e\u305f\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u3042\u3063\u305f\u3002<\/li>\n\n\n\n<li>\u6b20\u9665\u306e\u30d6\u30e9\u30a6\u30b6\u306e\u62e1\u5f35\u5b50\u306f\u5e72\u6e09\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u76f4\u9762\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u5225\u306e\u30a8\u30e9\u30fc\u306e\u3088\u3046\u306aStatus_Access_Violation, <a href=\"https:\/\/outbyte.com\/blog\/ja\/how-to-fix-status_access_violation-ja\/\">\u3053\u306e\u8a18\u4e8b<\/a> \u3092\u304a\u51fa\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%A9%E3%81%93%E3%82%92%E7%9B%B4ERR_CONNECTION_REFUSED%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%AB%E3%82%AF%E3%83%AD%E3%83%BC%E3%83%A0\"><\/span>\u3069\u3053\u3092\u76f4ERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u306b\u30af\u30ed\u30fc\u30e0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%8B%E3%81%A9%E3%81%86%E3%81%8B%E3%81%AE%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF%E3%81%AE%E3%82%B5%E3%82%A4%E3%83%88%E3%81%AF\"><\/span>\u304b\u3069\u3046\u304b\u306e\u30c1\u30a7\u30c3\u30af\u306e\u30b5\u30a4\u30c8\u306f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u304c\u751f\u3058\u305f\u5834\u5408\u306f\u3001\u305f\u3060\u3061\u306b\u554f\u984c\u304c\u3001\u6700\u521d\u306b\u3088\u3063\u3066\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u554f\u984c\u3058\u3083\u306a\u3044\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5408\u3046\u304b\u3069\u3046\u304b\u3001\u30b5\u30a4\u30c8\u305d\u306e\u3082\u306e\u3067\u3059\u3002 \u3046\u3053\u3068\u306b\u306a\u308b\u3068\u3001\u7b2c\u4e09\u8005\u306e\u30ea\u30fc\u30c7\u30a3\u30f3\u30b0\u30d7\u30ed\u30b8\u30a7\u30af\u30c8DownDetector\u306fIsItDownRightNow\u5834\u5408\u306e\u30b5\u30a4\u30c8\u3067\u3059\u3002 \u3067\u3042\u308c\u3070\u3001\u305ds\u3044\u3001\u304c\u5f85\u3061\u3067\u56fa\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"985\" height=\"361\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/how-to-run-sfc-scannow-2.webp\" alt=\"err_connection_refused\" class=\"wp-image-8563\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/how-to-run-sfc-scannow-2.webp 985w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/how-to-run-sfc-scannow-2-300x110.webp 300w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/how-to-run-sfc-scannow-2-768x281.webp 768w\" sizes=\"auto, (max-width: 985px) 100vw, 985px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%AE%E5%86%8D%E8%B5%B7%E5%8B%95%E3%82%92%E3%83%AB%E3%83%BC%E3%82%BF%E3%83%BC\"><\/span>\u306e\u518d\u8d77\u52d5\u3092\u30eb\u30fc\u30bf\u30fc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4e00\u6642\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u554f\u984c\u306f\u901a\u5e38\u306e\u56fa\u5b9a\u306b\u3088\u308b\u518d\u8d77\u52d5\u306e\u5834\u5408\u3092\u4f8b\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6e90\u3092\u304a\u5207\u308a\u306e\u30eb\u30fc\u30bf\u30fc\u306b\u3088\u308b\u5207\u65ad\u3057\u3066\u304b\u3089\u96fb\u6e90\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u5f8530\u79d2\u518d\u5ea6\u5dee\u3057\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li>\u30bb\u30f3\u30bf\u30fc\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u30eb\u30fc\u30bf\u30fc\u304c\u518d\u8d77\u52d5\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%98%8E%E7%A2%BA%E3%81%AA%E3%83%96%E3%83%A9%E3%82%A6%E3%82%B6%E3%81%AE%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5\"><\/span><strong>\u660e\u78ba\u306a\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6642\u306b\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u304a\u3088\u3073\u30af\u30c3\u30ad\u30fc\u3068\u3057\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u30d6\u30e9\u30a6\u30b6\u3067\u304d\u308b\u7406\u7531\u306e\u3064\u306a\u304c\u308a\u306b\u304f\u304b\u3063\u305f.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u958bChrome\u3092\u5165\u529b\u8a2d\u5b9a\uff1e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3&gt;\u95b2\u89a7\u5c65\u6b74\u30c7\u30fc\u30bf\u3092\u6d88\u53bb\u3059\u308b.<\/li>\n\n\n\n<li>\u30af\u30c3\u30ad\u30fc\u3084\u305d\u306e\u4ed6\u306e\u30b5\u30a4\u30c8\u306e\u30c7\u30fc\u30bf<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002<\/li>\n\n\n\n<li>\u30af\u30ea\u30c3\u30af\u3067\u660e\u78ba\u306b\u30c7\u30fc\u30bf\u306e\u518d\u8aad\u307f\u8fbc\u307f\u306e\u554f\u984c\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"505\" height=\"333\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Chrome-Clear-browsing-data.webp\" alt=\"err_connection_refused\" class=\"wp-image-8565\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Chrome-Clear-browsing-data.webp 505w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Chrome-Clear-browsing-data-300x198.webp 300w\" sizes=\"auto, (max-width: 505px) 100vw, 505px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%B7%A8%E9%9B%86%E3%81%AB%E4%BD%BF%E7%94%A8%E3%81%95%E3%82%8C%E3%81%A6%E3%81%84%E3%82%8B%E3%83%97%E3%83%AD%E3%82%AD%E3%82%B7%E3%82%B5%E3%83%BC%E3%83%90%E3%81%AE%E8%A8%AD%E5%AE%9A\"><\/span>\u7de8\u96c6\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u306e\u8a2d\u5b9a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8aa4\u3063\u305f\u30d7\u30ed\u30ad\u30b7\u8a2d\u5b9a\u30d6\u30ed\u30c3\u30af\u3078\u306e\u63a5\u7d9a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ec\u52dd+R\u3001\u305d\u306e\u30bf\u30a4\u30d7 <code class=\"inline\">inetcpl.cpl<\/code> \u3068\u5165\u529b\u3057\u3001enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u3078\u306e\u63a5\u7d9a\u30bf\u30d6\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066LAN\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u4e0b\u306e\u8a2d\u5b9a\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3068\u3044\u3046\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308bLAN. \u5fc5\u305a\u81ea\u52d5\u7684\u306b\u691c\u51fa\u3059\u308b\u8a2d\u5b9a\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>[OK]\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u518d\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"721\" height=\"293\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Chrome-System-settings.webp\" alt=\"err_connection_refused\" class=\"wp-image-8567\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Chrome-System-settings.webp 721w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Chrome-System-settings-300x122.webp 300w\" sizes=\"auto, (max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"632\" height=\"445\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Windows-proxy-settings.webp\" alt=\"err\u63a5\u7d9a\u304c\u62d2\u5426\u3055\" class=\"wp-image-8569\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Windows-proxy-settings.webp 632w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Windows-proxy-settings-300x211.webp 300w\" sizes=\"auto, (max-width: 632px) 100vw, 632px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%84%A1%E5%8A%B9%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%84%E3%82%A6%E3%82%A4%E3%83%AB%E3%82%B9%E5%AF%BE%E7%AD%96%E3%82%92%E4%B8%80%E6%99%82%E7%9A%84%E3%81%AB\"><\/span>\u7121\u52b9\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u3092\u4e00\u6642\u7684\u306b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6642\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u30d6\u30ed\u30c3\u30af\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u96fb\u6e90\u3092\u30aa\u30d5\u306b\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb&#8217;\u3068\u3044\u3046\u3002\uff09<\/li>\n\n\n\n<li>\u30c1\u30a7\u30c3\u30af\u3092\u898b\u308c\u3070\u3001\u554f\u984c\u304c\u89e3\u6c7a\u3055\u308c\u307e\u3059\u3002 \u5834\u5408\u306b\u30a8\u30e9\u30fc\u304c\u89e3\u9664\u3001\u518d\u8a2a\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u306e\u5185\u5bb9\u304c\u906e\u65ad\u3055\u308c\u308b\u3002<\/li>\n\n\n\n<li>\u8a18\u61b6\u306e\u56de\u5fa9\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f8c\u306e\u8a66\u9a13\u3092\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%AA%E3%81%8ADNS%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5\"><\/span>\u306a\u304aDNS\u30ad\u30e3\u30c3\u30b7\u30e5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5834\u5408\u306f\u305d\u306e\u3088\u3046\u306a\u30b9\u30c6\u30c3\u30d7\u3078-\u30af\u30ea\u30a2\u306f\u3001DNS\u30ad\u30e3\u30c3\u30b7\u30e5-\u308f\u304b\u3089\u306a\u3044\u3093\u3067s&#8217;\u7c21\u5358\u306a\u3053\u3068\u306b\u306a\u308bs\u304c\u3069\u306e\u3088\u3046\u306a\u554f\u984c\u306b\u53d6\u5f97\u3057\u6574\u7406\u3002 Os\u3084\u30d6\u30e9\u30a6\u30b6\u4e21\u65b9\u306e\u4eee\u8a2d\u30ad\u30e3\u30c3\u30b7\u30e5DNS\u306e\u5fdc\u52df\u306b\u3088\u308a\u30da\u30fc\u30b8\u3002 \u308b\u3053\u3068\u304c\u3067\u304d\u5f8c\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u4f5c\u54c1\u306e\u9673\u8150\u5316\u53c8\u306f\u53cd\u6620\u3055\u308c\u306a\u3044\u4e0a\u8a18\u5186\u30b0\u30e9\u30d5\u3067\u306f\u73fe\u5728\u306e\u72b6\u614b\u306b\u3088\u308b\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u8aa4\u63a5\u7d9a\u3092\u5b9f\u73fe\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306e\u65b9\u6cd5\u306e\u306a\u304b\u3092DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066:<\/p>\n\n\n\n<p><strong>Windows\u306e\u5834\u5408:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ec\u30b9\u306e\u7a93\u306e\u9375\u304c\u958b\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u691c\u7d22\u30dc\u30c3\u30af\u30b9\u304b\u3089\u3001 <code class=\"inline\">cmd <\/code>&#8216;\u3068\u5165\u529b\u3057\u3001enter\u30ad\u30fc\u3092\u62bc\u3057\u3001\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u306e\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3068\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3001\u66f8\u9762\u3067Enter\u30ad\u30fc\u3092\u62bc\u3059:<br><code class=\"inline\"><code>ipconfig\/flushdns<\/code><\/code><br><code class=\"inline\"><code>ipconfig\/release<\/code><\/code><br><code class=\"inline\"><code>ipconfig\/renew<\/code><\/code><\/li>\n\n\n\n<li>\u307e\u3060\u3001\u3053\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u3055\u308c\u3001DNS\u30ea\u30be\u30eb\u30d0\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6210\u529f\u3057\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4e0amacOS:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30aa\u30d5\u30a1\u30a4\u30f3\u30c0\u30fc\u3092\u30c4\u30fc\u30eb\u30d0\u30fc\u3092\u30af\u30ea\u30c3\u30af\u3057\u304f&gt;\u5099\u307e\u305f\u306f\u30d7\u30ec\u30b7\u30d5\u30c8+\u30b3\u30de\u30f3\u30c9+\u30a2\u30e1\u30ea\u30ab<\/li>\n\n\n\n<li>\u7aef\u672b\u304b\u3089\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30eb\u30c0\u30fc\u306b\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u5fc5\u305a\u8cbc\u308a\u4ed8\u3051\u3001\u4ee5\u4e0b\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3001\u305d\u3057\u3066Enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059: <code class=\"inline\">sudo killall -HUP mDNSResponder &amp;&amp; echo macOS DNS Cache Reset<\/code><\/li>\n\n\n\n<li>\u3053\u306e\u8fc5\u901f\u306a\u5165\u529badmin\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u305d\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u5b8c\u4e86\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u306f\u3001DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u5f53\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3002 \u5834\u5408\u306b\u30a8\u30e9\u30fc\u304c\u7d9a\u304f\u3088\u3046\u3001\u3055\u3089\u306a\u308bDNS\u30c8\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"565\" height=\"118\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Mac-sudo-terminal-command.webp\" alt=\"mac err\u63a5\u7d9a\u304c\u62d2\u5426\u3055\" class=\"wp-image-8571\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Mac-sudo-terminal-command.webp 565w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Mac-sudo-terminal-command-300x63.webp 300w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%B7%A8%E9%9B%86DNS%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9\"><\/span>\u7de8\u96c6DNS\u30a2\u30c9\u30ec\u30b9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5909\u66f4\u3059\u308bDNS\u30b5\u30fc\u30d0\u306e\u516cDNS\u306a\u3069\u3001Google\u306e\u63a5\u7d9a\u3092\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ecWindows+R\u3001 <code class=\"inline\">ncpa.cpl<\/code>\u3001\u30d2\u30c3\u30c8\u3067\u3059\u3002<\/li>\n\n\n\n<li>\u53f3\u30af\u30ea\u30c3\u30af\u3057\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u304a\u3088\u3073\u30d7\u30ed\u30d1\u30c6\u30a3]\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u9078\u629e <strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\u30d0\u30fc\u30b8\u30e7\u30f34(TCP\/IPv4)<\/strong> \u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u3092\u9078\u629e <strong>\u4e0b\u8a18\u306eDNS\u30b5\u30fc\u30d0\u306e\u30a2\u30c9\u30ec\u30b9<\/strong> \u3092\u5165\u529b\u5f8c\n<ul class=\"wp-block-list\">\n<li>\u512a\u5148DNS\u30b5\u30fc\u30d0:8.8.8.8<\/li>\n\n\n\n<li>\u4ee3\u66ffDNS\u30b5\u30fc\u30d0:8.8.4.4<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30af\u30ea\u30c3\u30af <strong>OK<\/strong> \u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u518d\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"229\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Wi-Fi-DNS-settings.webp\" alt=\"wi-fi err\u63a5\u7d9a\u304c\u62d2\u5426\u3055\" class=\"wp-image-8573\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Wi-Fi-DNS-settings.webp 620w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Wi-Fi-DNS-settings-300x111.webp 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%84%A1%E5%8A%B9%E3%81%AB%E3%82%A4%E3%83%B3%E3%82%B9%E3%83%88%E3%83%BC%E3%83%A9%E3%82%92%E3%83%80%E3%83%96%E3%83%AB%E3%82%AF%E3%83%AA%E3%83%83%E3%82%AF%E6%8B%A1%E5%BC%B5\"><\/span>\u7121\u52b9\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u3092\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u62e1\u5f35<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6545\u969c\u306e\u62e1\u5f35\u3092\u59a8\u5bb3\u3059\u308b\u304a\u305d\u308c\u304c\u3042\u308b\u3068\u95b2\u89a7\u3067\u304d\u307e\u3059\u3002 \u958bChrome\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002 \u30d5\u30ea\u30c3\u30d7\u306e\u5207\u308a\u66ff\u3048\u3092\u5168\u3066\u7121\u52b9\u5316\u3057\u307e\u3059\u3002 \u518d\u30af\u30ed\u30fc\u30e0\u304a\u3088\u3073\u8a66\u9a13\u3057\u307e\u3059\u3002 \u4e00\u5ea6\u306a\u8ca0\u8377\u3092\u958b\u59cbreenabling\u3060\u3001\u4e00\u3064\u4e00\u3064\u3092\u3072\u3068\u3064\u306f\u3001\u56de\u6570\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"491\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Extensions-1024x491.webp\" alt=\"\u30b5\u30a4\u30c8\u306e\u63a5\u7d9a\u3092\u62d2\u5426\" class=\"wp-image-8575\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Extensions-1024x491.webp 1024w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Extensions-300x144.webp 300w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Extensions-768x368.webp 768w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Extensions-1200x575.webp 1200w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Google-Extensions.webp 1381w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%86%8D%E3%82%A4%E3%83%B3%E3%82%B9%E3%83%88%E3%83%BC%E3%83%AB%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%83%88%E3%83%BC%E3%83%A9%E3%82%92%E3%83%80%E3%83%96%E3%83%AB%E3%82%AF%E3%83%AA%E3%83%83%E3%82%AF\"><\/span>\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u3092\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u306a\u3044\u5834\u5408\u4e0a\u8a18\u624b\u6cd5\u3001\u8003\u3048\u3066\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30af\u30ed\u30fc\u30e0\u89e3\u6c7a\u3059\u308b\u6f5c\u5728\u7684\u306a\u30d6\u30e9\u30a6\u30b6\u306e\u554f\u984c\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a2d\u5b9a&gt;Apps&gt;\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30a2\u30d7\u30ea\u3001\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30af\u30ed\u30fc\u30e0\u306f\u3001\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eWindows\u8a2d\u5b9a&gt;\u30d7\u30ed\u30b0\u30e9\u30e0\u53ca\u3073\u7279\u5fb4\u3092\u6709\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u306eChrome web\u30b5\u30a4\u30c8\u3088\u308a\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u6700\u65b0\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3002<\/li>\n\n\n\n<li>\u30a4Chrome\u306e\u5834\u5408\u3001\u554f\u984c\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"692\" height=\"475\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Download-Google-Chrome.webp\" alt=\"err_connection-\u62d2\u5426\" class=\"wp-image-8577\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Download-Google-Chrome.webp 692w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/Download-Google-Chrome-300x206.webp 300w\" sizes=\"auto, (max-width: 692px) 100vw, 692px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%88%E3%81%8F%E3%81%82%E3%82%8B%E8%B3%AA%E5%95%8F\"><\/span>\u3088\u304f\u3042\u308b\u8cea\u554f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>1. \u306aERR_CONNECTION_REFUSED\u5e73\u5747\u30af\u30ed\u30e0?<\/strong><\/summary>\n<p>\u3053\u306e\u30a8\u30e9\u30fc\u3092\u793a\u3059\u3053\u3068Chrome\u306a\u3069\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002 \u308c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u30b5\u30fc\u30d0\u30fc\u306e\u554f\u984c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u307e\u305f\u306f\u30d6\u30e9\u30a6\u30b6\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>2. \u3044\u3063DNS\u30ad\u30e3\u30c3\u30b7\u30e5?<\/strong><\/summary>\n<p>\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u958b\u304d\u7ba1\u7406\u8005\u3068\u3057\u3066\u3001 <code class=\"inline\">ipconfig\/flushdns<\/code>\u3001Enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>3. \u3067\u304d\u308b\u62e1\u5f35\u5b50\u304cERR_CONNECTION_REFUSED?<\/strong><\/summary>\n<p>\u3042\u308a\u3001\u75c5\u6c17\u3084web\u30d6\u30e9\u30a6\u30b6\u62e1\u5f35\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u5207\u65ad\u3057\u305f\u5f8c\u3001\u3053\u306e\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>4. \u3079\u3066\u5b8c\u5168\u306b\u906e\u65ad\u3057\u305f\u72b6\u614b\u3067\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30a6\u30a4\u30eb\u30b9?<\/strong><\/summary>\n<p>\u3044\u3044\u3048\u3001\u7121\u52b9\u306b\u3057\u3066\u4e00\u6642\u7684\u306b\u8a66\u9a13\u7528\u306e\u307f\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002 \u306e\u8a66\u9a13\u306f\u3001\u3044\u3064\u3067\u3082\u53ef\u80fd\u306a\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>5. \u4eee\u306b\u3059\u3079\u3066\u306e\u4fee\u6b63\u3092\u884c\u306a\u3044\u3001\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<\/strong><\/summary>\n<p>\u5834\u5408\u306b\u306f\u554f\u984c\u3060\u304c\u7d9a\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3001\u3059\u3079\u3066\u306e\u89e3\u306e\u5834\u5408\u306b\u304a\u3044\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u3067\u3059\u3002<\/p>\n<\/details>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ERR_CONNECTION_REFUSED\u306f\u3001Chrome\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u4e2d\u306b\u7d4c\u9a13\u3059\u308b\u4e00\u822c\u7684\u306a\u554f\u984c\u306e1\u3064\u3067\u3059\u3002\u3053\u308c\u306f\u63a5\u7d9a\u6027\u306e\u554f\u984c\u3067\u3042\u308b\u305f\u3081\u3001\u57fa\u672c\u7684\u306b\u306f\u3001\u8981\u6c42\u3055\u308c\u305f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u306e\u63a5\u7d9a\u78ba\u7acb\u8981\u6c42\u3092\u62d2\u5426\u3057\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002 \u4f55ERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u306b\u30af\u30ed\u30fc\u30e0? Chrome\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u95b2\u89a7\u3057\u3066\u3044\u308b\u3068\u3001\u63a5\u7d9a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u306a\u554f\u984c\u306e1\u3064\u306f\u300cErr_Connection_Closed\u300d\u307e\u305f\u306f\u300cErr_Connection_Refused\u300d\u30a8\u30e9\u30fc\u3067\u3001Web\u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306f\u901a\u5e38\u3001\u4e0d\u9069\u5207\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3084\u4e92\u63db\u6027\u306e\u306a\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a3c\u660e\u66f8\u304c\u539f\u56e0\u3067\u767a\u751f\u3057\u307e\u3059\u3002\u5e78\u3044\u306a\u3053\u3068\u306b\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3057\u3066\u518d\u3073\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u65b9\u6cd5\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002 Chrome\u304c\u300cErr_Connection_Refused\u300d\u3068\u8868\u793a\u3059\u308b\u5834\u5408\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u8981\u6c42\u3055\u308c\u305f\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30cd\u30c3\u30c8\u30b5\u30fc\u30d5\u30a3\u30f3\u3092\u7d9a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u540c\u3058\u30a8\u30e9\u30fc\u306f\u4ed6\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u767a\u751f\u3057\u307e\u3059\u304c\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070 \u3053\u308c\u3089\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u5fc5\u305a\u3057\u3082\u6709\u76ca\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u52b9\u679c\u7684\u306a\u4fee\u6b63\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002 \u3069\u3046\u3057\u3066\u8d77\u3053\u308bERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u306b\u30af\u30ed\u30fc\u30e0? \u4e0b\u8a18\u306e\u3088\u3046\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u306e\u539f\u56e0: \u76f4\u9762\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u5225\u306e\u30a8\u30e9\u30fc\u306e\u3088\u3046\u306aStatus_Access_Violation, \u3053\u306e\u8a18\u4e8b \u3092\u304a\u51fa\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002 \u3069\u3053\u3092\u76f4ERR_CONNECTION_REFUSED\u30a8\u30e9\u30fc\u306b\u30af\u30ed\u30fc\u30e0 \u304b\u3069\u3046\u304b\u306e\u30c1\u30a7\u30c3\u30af\u306e\u30b5\u30a4\u30c8\u306f \u304c\u751f\u3058\u305f\u5834\u5408\u306f\u3001\u305f\u3060\u3061\u306b\u554f\u984c\u304c\u3001\u6700\u521d\u306b\u3088\u3063\u3066\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u554f\u984c\u3058\u3083\u306a\u3044\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5408\u3046\u304b\u3069\u3046\u304b\u3001\u30b5\u30a4\u30c8\u305d\u306e\u3082\u306e\u3067\u3059\u3002 \u3046\u3053\u3068\u306b\u306a\u308b\u3068\u3001\u7b2c\u4e09\u8005\u306e\u30ea\u30fc\u30c7\u30a3\u30f3\u30b0\u30d7\u30ed\u30b8\u30a7\u30af\u30c8DownDetector\u306fIsItDownRightNow\u5834\u5408\u306e\u30b5\u30a4\u30c8\u3067\u3059\u3002 \u3067\u3042\u308c\u3070\u3001\u305ds\u3044\u3001\u304c\u5f85\u3061\u3067\u56fa\u5b9a\u3057\u307e\u3059\u3002 \u306e\u518d\u8d77\u52d5\u3092\u30eb\u30fc\u30bf\u30fc 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