{"id":21460,"date":"2018-09-04T07:10:41","date_gmt":"2018-09-04T14:10:41","guid":{"rendered":"https:\/\/staging.kinsta.site\/?p=13012"},"modified":"2021-05-06T16:22:28","modified_gmt":"2021-05-06T07:22:28","slug":"502-bad-gateway","status":"publish","type":"post","link":"https:\/\/staging.kinsta.site\/jp\/blog\/502-bad-gateway\/","title":{"rendered":"WordPress\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u300c502 Bad Gateway Error\u300d\u306e\u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"<p>WordPress\u306a\u3089\u3001\u30a4\u30e9\u30a4\u30e9\u3057\u3066\u6df7\u4e71\u3059\u308b\u30a8\u30e9\u30fc\u304c\u591a\u3044\u3067\u3059\u3002\u4f8b\u3048\u3070\u300c<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/error-establishing-a-database-connection\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u78ba\u7acb\u4e2d\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f<\/a>\u300d\u3068\u300c<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/wordpress-white-screen-of-death\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u6b7b\u306e\u767d\u3044\u30b9\u30af\u30ea\u30fc\u30f3<\/a>\u300d\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3055\u3089\u306b\u4e00\u822c\u7684\u306a\u306e\u306f\u3001\u300c502 Bad Gateway Error\u300d\uff08\u4e0d\u6b63\u306a\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\uff09\u30a8\u30e9\u30fc\u3067\u3059\u3002\u306a\u305c\u304b\u3068\u3044\u3046\u3068\u3001WordPress\u306b\u9650\u3089\u305a\u3001Gmail\u3001Twitter\u3001Cloudflare\u306a\u3069\u306e\u4eba\u6c17\u306a\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u3001\u30a6\u30a7\u30d6\u5168\u4f53\u3067\u5b9a\u671f\u7684\u306b\u767a\u751f\u3059\u308b\u30a8\u30e9\u30fc\u3067\u3042\u308b\u304b\u3089\u3067\u3059\u3002\u3082\u3061\u308d\u3093\u3001\u4eca\u56de\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3042\u306a\u305f\u306eWordPress\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u5f71\u97ff\u3067\u3059\u3002\u672c\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u4eca\u5f8c\u306e\u56de\u907f\u7b56\u306b\u3064\u3044\u3066\u306f\u3001\u4e0b\u8a18\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"#what-is-502-bad-gateway-error\">502 Bad Gateway Error\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"#fix-502-bad-gateway-error\">502 Bad Gateway Error\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<\/ul>\n<h2><a id=\"what-is-502-bad-gateway-error\"><\/a>502 Bad Gateway Error\u3068\u306f\uff1f<\/h2>\n<p>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u304d\u306b\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306f\u305d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u51e6\u7406\u3057\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3092HTTP\u30d8\u30c3\u30c0\u30fc\u3068\u5171\u306b\u8fd4\u4fe1\u3057\u307e\u3059\u3002HTTP\u306b\u306f\u3001<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/http-status-codes\/\" target=\"_blank\" rel=\"noopener noreferrer\">HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9<\/a>\u3068\u3044\u3046\u3082\u306e\u3082\u542b\u307e\u308c\u307e\u3059\u3002\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u72b6\u614b\uff08\u30b9\u30c6\u30fc\u30bf\u30b9\uff09\u3092\u901a\u77e5\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306f\u300c\u6210\u529f\u300d\u3092\u610f\u5473\u3059\u308b200\u3001\u307e\u305f\u306f\u300c\u5931\u6557\u300d\u3092\u610f\u5473\u3059\u308b500\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30c6\u30fc\u30bf\u30b9\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9500\u306b\u306f\u610f\u5473\u304c\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u7a2e\u985e\uff08<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/500-internal-server-error\/\" target=\"_blank\" rel=\"noopener noreferrer\">500<\/a>, <a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/501-not-implemented-error\/\" target=\"_blank\" rel=\"noopener noreferrer\">501<\/a>\u3001 502\u3001503\u3001<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/504-gateway-timeout\/\" target=\"_blank\" rel=\"noopener noreferrer\">504<\/a>\u306a\u3069\uff09\u304c\u591a\u3044\u3067\u3059\u3002\u305d\u306e\u3059\u3079\u3066\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u53d7\u3051\u5165\u308c\u3089\u308c\u305f\u304c\u3001\u6e80\u305f\u3055\u308c\u3066\u3044\u306a\u3044\u610f\u5473\u3067\u3059\u3002\u4eca\u56de\u306e\u300c502 Bad Gateway Error\u300d\uff08\u4e0d\u6b63\u306a\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\uff09\u306e\u610f\u5473\u306f\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30fb\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u306f<strong>\u4e0d\u6b63\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a<\/strong>\u3001\u3053\u308c\u3092\u62d2\u5426\u3057\u305f\u3053\u3068\u3067\u3059\u3002\uff08<a href=\"https:\/\/tools.ietf.org\/html\/rfc7231#section-6.6.1\" target=\"_blank\" rel=\"noopener noreferrer\">RFC 7231\u3001<\/a>\u7b2c6.6.3\u6761\uff09<\/p>\n<figure id=\"attachment_48575\" aria-describedby=\"caption-attachment-48575\" style=\"width: 1504px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-48575\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/2017\/09\/502-bad-gateway-error-chrome.png\" alt=\"Chrome\u306e502 Bad Gateway Error\" width=\"1504\" height=\"942\"><figcaption id=\"caption-attachment-48575\" class=\"wp-caption-text\">Chrome\u306e502 Bad Gateway Error<\/figcaption><\/figure>\n<h3>502 Bad Gateway Error\u306e\u7a2e\u985e<\/h3>\n<p>\u540c\u3058502 Bad Gateway Error\u3067\u3082\u3001Web\u30b5\u30fc\u30d0\u30fc\u3001\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3001\u304a\u3088\u3073\u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u70ba\u3001\u8a00\u3044\u65b9\u304c\u5c11\u3057\u5909\u308f\u3063\u3066\u3057\u307e\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u610f\u5473\u306f\u3082\u3061\u308d\u3093\u5909\u308f\u308a\u307e\u305b\u3093\u3002\u30a6\u30a7\u30d6\u4e0a\u3067\u898b\u304b\u3051\u308b\u3053\u3068\u306e\u3067\u304d\u308b\u7a2e\u985e\u306e\u4f8b\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u307e\u3059\uff1a<\/p>\n<ul>\n<li>&#8220;502 Bad Gateway&#8221;<\/li>\n<li>&#8220;Error 502&#8221;<\/li>\n<li>&#8220;HTTP Error 502 \u2013 Bad Gateway&#8221;<\/li>\n<li>&#8220;502 Service Temporarily Overloaded&#8221;<\/li>\n<li>&#8220;502 Proxy Error&#8221;<\/li>\n<li>\u7a7a\u767d\u306e\u767d\u3044\u753b\u9762<\/li>\n<li>&#8220;502 Server Error: The server encountered a temporary error and could not complete your request&#8221;<\/li>\n<li>&#8220;HTTP 502&#8221;<\/li>\n<li>Temporary Error (502)<\/li>\n<li>502. That&#8217;s an error<\/li>\n<li>502 bad gateway Cloudflare<\/li>\n<li>Bad Gateway: The proxy server received an invalid response from an upstream server<\/li>\n<\/ul>\n<p>\u300c502 server error\u300d\u3068\u3046\u3044\u3046\u8868\u793a\u306e\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_48576\" aria-describedby=\"caption-attachment-48576\" style=\"width: 1505px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-48576\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/2017\/09\/502-server-error.png\" alt=\"Chrome\u306e502 Server Error\" width=\"1505\" height=\"977\"><figcaption id=\"caption-attachment-48576\" class=\"wp-caption-text\">Chrome\u306e502 Server Error<\/figcaption><\/figure>\n<p>\u3053\u306e\u3088\u3046\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u3082\u3042\u308a\u307e\u3059\uff1a \u300c502 &#8211; Web server received an invalid response while acting as a gateway or proxy server. There is a problem with the page you are looking for, and it cannot be displayed. When the Web server (while acting as a gateway or proxy) contacted the upstream content server, it received an invalid response from the content server.\u300d<\/p>\n<figure style=\"width: 1670px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2017\/09\/502-web-server-received-an-invalid-response.png\" alt=\"502-\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u306f\u4e0d\u6b63\u306a\u5fdc\u7b54\u3092\u53d7\u3051\u53d6\u3063\u305f\" width=\"1670\" height=\"965\"><figcaption class=\"wp-caption-text\">502-\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u306f\u4e0d\u6b63\u306a\u5fdc\u7b54\u3092\u53d7\u3051\u53d6\u3063\u305f<\/figcaption><\/figure>\n<p>Twitter\u306f\u3001\u300cTwitter is over capacity.\u300d\uff08Twitter\u306f\u51e6\u7406\u80fd\u529b\u306e\u9650\u754c\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\uff09\u306a\u3069\u3001502 Bad Gateway Error\u306e\u72ec\u7279\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u307e\u3059\u3002\u9593\u9055\u3044\u306a\u304f\u30e6\u30fc\u30b6\u30fc\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u3067\u3059\u306d\u3002<\/p>\n<figure style=\"width: 1361px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2017\/08\/twitter-is-over-capacity.png\" alt=\"Twitter\u306f\u51e6\u7406\u80fd\u529b\u306e\u9650\u754c\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\" width=\"1361\" height=\"677\"><figcaption class=\"wp-caption-text\">Twitter\u306f\u51e6\u7406\u80fd\u529b\u306e\u9650\u754c\u3092\u8d85\u3048\u3066\u3044\u307e\u3059 (\u753b\u50cf\u51fa\u5178:\u00a0<a href=\"http:\/\/webscripts.softpedia.com\/blog\/quot-Twitter-Is-Over-Capacity-quot-but-Its-Engineers-Are-on-It-325691.shtml\" target=\"_blank\" rel=\"noopener noreferrer\">Softpedia<\/a>)<\/figcaption><\/figure>\n<p>Google\u306e\u8868\u793a\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a\u300c502. That&#8217;s an error.\u00a0The server encountered a temporary error and could not complete your request. Please try again in 30 seconds. That&#8217;s all we know.\u300d<\/p>\n<figure style=\"width: 1356px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full \" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2017\/09\/google-502-error.png\" alt=\"Google\u306e502\u30a8\u30e9\u30fc\" width=\"1356\" height=\"596\"><figcaption class=\"wp-caption-text\">Google\u306e502\u30a8\u30e9\u30fc<\/figcaption><\/figure>\n<h3>502 Error\u306eSEO\u3078\u306e\u5f71\u97ff<\/h3>\n<p>WordPress\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306e\u969b\u306b\u4f7f\u7528\u3055\u308c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u7d42\u308f\u3063\u305f\u3089\u3082\u3046\u4e00\u5ea6\u78ba\u8a8d\u3059\u308b\u3088\u3046\u306bGoogle\u306b\u6307\u793a\u3059\u308b<a href=\"https:\/\/yoast.com\/http-503-site-maintenance-seo\/\" target=\"_blank\" rel=\"noopener noreferrer\">503\u30a8\u30e9\u30fc<\/a>\u3068\u306f\u7570\u306a\u308a\u3001\u3059\u3050\u306b\u3067\u3082\u4fee\u6b63\u3055\u308c\u306a\u3044\u3068\u3001500\u30a8\u30e9\u30fc\u304cSEO\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u4f8b\u3048\u307010\u5206\u9593\u3060\u3051\u30c0\u30a6\u30f3\u3057\u3066\u3044\u3066\u3001\u305d\u306e\u9593\u306b\u30af\u30ed\u30fc\u30eb\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u30da\u30fc\u30b8\u304c\u5358\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u304b\u3089\u30af\u30ed\u30fc\u30eb\u3055\u308c\u307e\u3059\u3002\u3042\u308b\u3044\u306f\u3001Google\u306f\u518d\u30af\u30ed\u30fc\u30eb\u3059\u308b\u6642\u9593\u3055\u3048\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u306e\u5834\u5408\u306b\u306f\u3001\u4f55\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u9577\u671f\u9593\uff08\u305f\u3068\u3048\u30706\u6642\u9593\u4ee5\u4e0a\u3082\uff09\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u3001Google\u304c\u305d\u306e502\u30a8\u30e9\u30fc\u3092\u30b5\u30a4\u30c8\u30ec\u30d9\u30eb\u306e\u554f\u984c\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u3053\u308c\u306f\u30e9\u30f3\u30ad\u30f3\u30b0\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>500\u30a8\u30e9\u30fc\u304c\u7e70\u308a\u8fd4\u3055\u308c\u308b\u3053\u3068\u3092\u5fc3\u914d\u3057\u3066\u3044\u308b\u65b9\u306f\u3001\u307e\u305a\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3001\u4e0b\u8a18\u306e\u89e3\u6c7a\u65b9\u6cd5\u3092\u5b9f\u65bd\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2><a id=\"fix-502-bad-gateway-error\"><\/a>502 Bad Gateway Error\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/h2>\n<p>502 Bad Gateway Error\u306f\u901a\u5e38\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5074\u307e\u305f\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u7570\u5e38\u3067\u3059\u304c\u3001\u304a\u5ba2\u69d8\u5074\u3067\u767a\u751f\u3059\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u306f\u4e21\u65b9\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002502 Bad Gateway Error\u306e\u4e00\u822c\u7684\u306a\u539f\u56e0\u3068\u89e3\u6c7a\u65b9\u6cd5\u3092\u662f\u975e\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3><span style=\"font-size: 16px\">1. \u30da\u30fc\u30b8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3059\u308b<\/span><\/h3>\n<p>\u3053\u308c\u306f\u5f53\u305f\u308a\u524d\u306e\u3053\u3068\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001502 Bad Gateway Error\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u8a66\u3057\u3066\u304a\u304f\u3079\u304d\u6700\u3082\u7c21\u5358\u306a\u5bfe\u7b56\u306e1\u3064\u306f\u30011\u5206\u307b\u3069\u5f85\u3061\u3001<strong>\u30da\u30fc\u30b8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3059\u308b<\/strong>\u3053\u3068\u3067\u3059\uff08F5\u307e\u305f\u306fCtrl + F5\uff09\u3002\u30db\u30b9\u30c8\u307e\u305f\u306f\u30b5\u30fc\u30d0\u30fc\u304c\u904e\u8ca0\u8377\u306b\u306a\u3063\u3066\u3044\u308b\u3060\u3051\u3067\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u3059\u3050\u306b\u623b\u3063\u3066\u304f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5f85\u3063\u3066\u3044\u308b\u9593\u306b\u3001\u5225\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u30a2\u30af\u30bb\u30b9\u3057\u3066\u307f\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u7570\u5e38\u3092\u8003\u616e\u304b\u3089\u5916\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3082\u3046\u4e00\u3064\u306e\u3067\u304d\u308b\u3053\u3068\u306f\u3001<a href=\"http:\/\/downforeveryoneorjustme.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">downforeveryoneorjustme.com<\/a>\u306b\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u8cbc\u308a\u4ed8\u3051\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u306f\u3001\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u672c\u5f53\u306b\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u3042\u306a\u305f\u306e\u5074\u306e\u554f\u984c\u306a\u306e\u304b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id class=\"wp-caption aligncenter\">\n<p><figure style=\"width: 1467px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" title=\"downforeveryoneorjustme\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2017\/08\/downforeveryoneorjustme.png\" alt=\"downforeveryoneorjustme\" width=\"1467\" height=\"163\"><figcaption class=\"wp-caption-text\">downforeveryoneorjustme<\/figcaption><\/figure><\/figure>\n<h3>2. \u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b<\/h3>\n<p>\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u3053\u3068\u3082\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30c7\u30d0\u30c3\u30b0\u3092\u59cb\u3081\u308b\u524d\u306e\u4fbf\u5229\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u624b\u6bb5\u306e\u4e00\u3064\u3067\u3059\u3002\u5404\u30d6\u30e9\u30a6\u30b6\u3067\u306e\u624b\u9806\u306f\u3053\u3061\u3089\u3067\u3059\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#single\" target=\"_blank\" rel=\"noopener noreferrer\">\u4e00\u3064\u306e\u30da\u30fc\u30b8\u3092\u3059\u3079\u3066\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u5f37\u5236\u7684\u306b\u66f4\u65b0\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#chrome\" target=\"_blank\" rel=\"noopener noreferrer\">Google Chrome\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#firefox\" target=\"_blank\" rel=\"noopener noreferrer\">Mozilla Firefox\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#safari\" target=\"_blank\" rel=\"noopener noreferrer\">Safari\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#ie\" target=\"_blank\" rel=\"noopener noreferrer\">Internet Explorer\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#edge\" target=\"_blank\" rel=\"noopener noreferrer\">Microsoft Edge\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\/a&gt;<\/a><\/li>\n<li><a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/how-to-clear-browser-cache\/#opera\" target=\"_blank\" rel=\"noopener noreferrer\">Opera\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/li>\n<\/ul>\n<h3>3.\u00a0DNS\u7570\u5e38<\/h3>\n<p>502 Bad Gateway Error\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u6b63\u3057\u3044IP\u3078\u306e\u89e3\u6c7a\u304c\u3067\u304d\u306a\u3044\u306a\u3069\u3001DNS\u7570\u5e38\u3092\u539f\u56e0\u306b\u767a\u751f\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002WordPress\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u79fb\u884c\u3057\u305f\u3070\u304b\u308a\u306e\u5834\u5408\u306f\u3001\u5b8c\u5168\u306b\u4f1d\u64ad\u3059\u308b\u307e\u3067\u306b\u5f85\u3064\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3002\uff08\u5834\u5408\u306b\u3088\u308a\u6700\u592724\u6642\u9593\u3082\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\uff09DNS\u30ec\u30b3\u30fc\u30c9\u306eTTL\u5024\u306b\u3088\u308a\u307e\u3059\u3002<\/p>\n<p>\u30ed\u30fc\u30ab\u30ebDNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30d5\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u3053\u3068\u3082\u8a66\u3057\u3066\u307f\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u306e\u3068\u540c\u69d8\u3067\u3059\u3002<\/p>\n<p>Windows\u3067\u306f\u3001Command Prompt\u3092\u958b\u304d\u3001\u6b21\u306e\u3088\u3046\u306b\u5165\u529b\u3057\u307e\u3059\uff1a<\/p>\n<pre>ipconfig\u00a0\/flushdns<\/pre>\n<figure style=\"width: 1285px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" size-full\" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2017\/08\/command-prompt-flush-dns-e1504247136564.png\" alt=\"Command prompt\u3067DNS\u3092\u30d5\u30e9\u30c3\u30b7\u30e5\u3059\u308b\" width=\"1285\" height=\"500\"><figcaption class=\"wp-caption-text\">Command prompt\u3067DNS\u3092\u30d5\u30e9\u30c3\u30b7\u30e5\u3059\u308b<\/figcaption><\/figure>\n<p>\u6210\u529f\u3057\u305f\u5834\u5408\u306f\u3001\u300cSuccessfully flushed the DNS\u00a0resolver\u00a0Cache\u300d\uff08DNS\u89e3\u6c7a\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6b63\u5e38\u306b\u30d5\u30e9\u30c3\u30b7\u30e5\u3055\u308c\u307e\u3057\u305f\u300d\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>macOS\u3054\u5229\u7528\u306e\u65b9\u306f\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u306b\u6b21\u306e\u3088\u3046\u306b\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<pre>dscacheutil -flushcache<\/pre>\n<p>\u6ce8\uff1aMac\u306b\u306f\u6210\u529f\u3057\u305f\u5834\u5408\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u4e00\u6642\u7684\u306bDNS\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002DNS\u30b5\u30fc\u30d0\u30fc\u306fISP\u306b\u3088\u308a\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u3092\u4e00\u6642\u7684\u306bGoogle\u306a\u3069\u306e<a href=\"https:\/\/developers.google.com\/speed\/public-dns\/docs\/using\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d1\u30d6\u30ea\u30c3\u30af\u306aDNS\u30b5\u30fc\u30d0\u30fc<\/a>\u306b\u5909\u66f4\u3057\u3066\u307f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5b9f\u306f\u3001Google\u306e\u30d1\u30d6\u30ea\u30c3\u30af\u306aDNS\u3092\u9577\u671f\u9593\u4f7f\u7528\u3059\u308b\u65b9\u3082\u3044\u307e\u3059\u3002<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/premium-dns\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d7\u30ec\u30df\u30a2\u30e0DNS<\/a>\u4f1d\u64ad\u3092\u304a\u6301\u3061\u306e\u65b9\u306a\u3089\u3001\u305d\u306e\u65b9\u306f\u901f\u3044\u3067\u3059\u3002<\/p>\n<h3>4. \u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u306b\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>502 Bad Gateway Error\u304c\u767a\u751f\u3059\u308b\u4e3b\u306a\u7406\u7531\u306f\u3001Web\u30db\u30b9\u30c8\u5074\u306e\u7570\u5e38\u3067\u3059\u3002<strong>\u30af\u30a8\u30ea\u30fc\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3001\u307e\u305f\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u3059\u304e\u308b<\/strong>\u305f\u3081\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u308a\u30ad\u30e3\u30f3\u30bb\u30eb\u307e\u305f\u306f\u5f37\u5236\u7d42\u4e86\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u306e\u591a\u304f\u3001\u7279\u306b\u5171\u6709\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u306f\u3001 \u300c\u5f37\u5236\u7d42\u4e86\u30b9\u30af\u30ea\u30d7\u30c8\u300d\u3068\u3044\u3046\u3082\u306e\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u5f37\u5236\u7d42\u4e86\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u57fa\u672c\u7684\u306b\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u30c0\u30a6\u30f3\u3055\u305b\u305f\u308a\u4ed6\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044\u3088\u3046\u306b\u3001\u4e00\u5b9a\u671f\u9593\u5f8c\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5f37\u5236\u7d42\u4e86\u3055\u305b\u308b\u3082\u306e\u3067\u3059\u3002Twitter\u3067\u300c<a href=\"https:\/\/twitter.com\/search?q=bad%20gateway&#038;src=typd\" target=\"_blank\" rel=\"noopener noreferrer\">\u60aa\u3044\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/a>\u300d\u3092\u691c\u7d22\u3059\u308b\u3068\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u306b\u672c\u30a8\u30e9\u30fc\u306e\u9023\u7d61\u3092\u3057\u3066\u3044\u308b\u30c4\u30a4\u30fc\u30c8\u304c\u6bce\u65e5\u4f55\u5343\u3082\u306e\u51fa\u3066\u304d\u307e\u3059\u3002<\/p>\n<figure style=\"width: 632px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" \" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2017\/08\/502-bad-gateway-tweets.png\" alt=\"502 Bad Gateway Error\u306e\u30c4\u30a4\u30fc\u30c8\" width=\"632\" height=\"580\"><figcaption class=\"wp-caption-text\">502 Bad Gateway Error\u306e\u30c4\u30a4\u30fc\u30c8<\/figcaption><\/figure>\n<p>Kinsta\u3078\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u79fb\u884c\u3092\u691c\u8a0e\u3059\u308b\u4fa1\u5024\u306e\u3042\u308b\u7406\u7531\u306e\u4e00\u3064\u306f\u3001Kinsta\u304c\u5404\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u72ec\u7acb\u3057\u305fLXD\u30db\u30b9\u30c8\u3068LXC\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b3\u30f3\u30c6\u30ca\u3092\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u5404WordPress\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u305d\u306e\u7a3c\u50cd\u306b\u5fc5\u8981\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\uff08Linux\u3001<a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/what-is-nginx\/\" target=\"_blank\" rel=\"noopener noreferrer\">NGINX<\/a>\u3001PHP\u3001MySQL\uff09\u306e\u3042\u308b\u3001<strong>\u9694\u96e2\u3055\u308c\u3066\u3044\u308b\u5c02\u7528\u30b3\u30f3\u30c6\u30ca<\/strong>\u306b\u4fdd\u7ba1\u3055\u308c\u307e\u3059\u3002<strong>\u30ea\u30bd\u30fc\u30b9\u306f100\uff05\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8<\/strong>\u3067\u3001\u4ed6\u306e\u30e6\u30fc\u30b6\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u307e\u305f\u306f\u3042\u306a\u305f\u306e\u5404\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3068\u3082\u5171\u6709\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001502 Bad Gateway Error\u306e\u767a\u751f\u53ef\u80fd\u6027\u304c\u5927\u5e45\u306b\u6e1b\u5c11\u3057\u307e\u3059\u3002 \u5f53\u793e\u304c\u5171\u6709\u30db\u30b9\u30c8\u306e\u3088\u3046\u306a\u5f37\u5236\u7d42\u4e86\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3057\u3066\u3044\u304a\u308a\u307e\u305b\u3093\u3002\u4e07\u304c\u4e00\u3001\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e1\u3064\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3044\u3066\u3082\u3001\u4ed6\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u5f71\u97ff\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u5074\u3067502 Bad Gateway Error\u304c\u767a\u751f\u3059\u308b\u3082\u3046\u4e00\u3064\u306e\u7406\u7531\u306f\u3001\u30b5\u30fc\u30d0\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u304b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u306b\u30b5\u30fc\u30d0\u304c\u5229\u7528\u4e0d\u53ef\u80fd\u306a\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u306f\u3001WordPress\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u306e<a href=\"https:\/\/status.kinsta.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8<\/a>\u3092\u78ba\u8a8d\u3059\u308b\u304b\u3001\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8\u3092\u958b\u304f\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<h3>5. CDN\u307e\u305f\u306f\u30d5\u30a1\u30a4\u30e4\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u4e00\u6642\u7684\u306b\u7121\u52b9\u306b\u3059\u308b<\/h3>\n<p>\u307e\u305f\u3001<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/wordpress-cdn\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/a>\uff08CDN\uff09\u306e\u7570\u5e38\u306e\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u306eCDN\u30d7\u30ed\u30d0\u30a4\u30c0\u3092\u3054\u5229\u7528\u306e\u5834\u5408\u306f\u3001CDN\u307e\u305f\u306f\u30d5\u30a1\u30a4\u30e4\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u4e00\u6642\u7684\u306b\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u5bfe\u5fdc\u3057\u3084\u3059\u3044\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5f53\u793e\u306e\u30e1\u30f3\u30d0\u30fc\u304c\u7121\u6599\u306e<a href=\"https:\/\/wordpress.org\/plugins\/cdn-enabler\/\" target=\"_blank\" rel=\"noopener noreferrer\">CDN enabler<\/a>\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u5927\u597d\u304d\u3067\u3059\u3002\u672c\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u3054\u5229\u7528\u306e\u5834\u5408\u306f\u3001\u5358\u306b\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u306b\u3057\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001SFTP\u7d4c\u7531\u3067\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u306e\u540d\u524d\u3092cdn-enabler_old\u306b\u5909\u66f4\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e00\u6642\u7684\u306bCDN\u63a5\u7d9a\u304c\u7121\u52b9\u306b\u306a\u308a\u307e\u3059\u3002WP Rocket\u53ca\u3073\u305d\u306e\u4ed6\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3082\u540c\u69d8\u3067\u3059\u3002<\/p>\n<figure style=\"width: 1384px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full \" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2017\/08\/rename-plugin-temporarily.png\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u306e\u540d\u524d\u3092\u4e00\u6642\u7684\u306b\u5909\u66f4\u3059\u308b\" width=\"1384\" height=\"307\"><figcaption class=\"wp-caption-text\">\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u306e\u540d\u524d\u3092\u4e00\u6642\u7684\u306b\u5909\u66f4\u3059\u308b<\/figcaption><\/figure>\n<p>Cloudflare\u306a\u3069\u3001<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/what-is-a-ddos-attack\/\">DDoS\u4fdd\u8b77<\/a>\u307e\u305f\u306f\u5b8c\u5168\u306a\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u4f1a\u793e\u3067\u3082\u3001\u8ffd\u52a0\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u304c\u3042\u308b\u305f\u3081\u3001\u540c\u3058\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Cloudflare\u306e\u7121\u6599\u306e\u30d7\u30e9\u30f3\u3067\u305f\u307e\u306b\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001Cloudflare\u306f\u5b8c\u5168\u306a\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d3\u30b9\u3067\u3042\u308b\u305f\u3081\u3001\u5358\u306b\u7121\u52b9\u306b\u3059\u308b\u7c21\u5358\u306a\u65b9\u6cd5\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001Cloudflare\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u3059\u308b\u524d\u306b\u3001Cloudflare\u95a2\u4fc2\u306e502 Bad Gateway Error\u304c\u4ee5\u4e0b\u306b\u793a\u3059\u3088\u3046\u306b2\u7a2e\u985e\u3082\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>Cloudflare\u306e502 Bad Gateway\u30a8\u30e9\u30fc\uff08\u7a2e\u985e\u305d\u306e1\uff09<\/h4>\n<p>\u6b21\u306e\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u305f\u5834\u5408\u3001Cloudflare\u5074\u306e\u7570\u5e38\u306b\u9055\u3044\u3042\u308a\u307e\u305b\u3093\u3002\u9867\u5ba2\u30b5\u30dd\u30fc\u30c8\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002\u73fe\u5728\u505c\u6b62\u3057\u3066\u3044\u308b\u304b\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/www.cloudflarestatus.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cloudflare\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8<\/a>\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure id=\"attachment_48737\" aria-describedby=\"caption-attachment-48737\" style=\"width: 1505px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-48737\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/2017\/09\/502-bad-gateway-cloudflare-error.png\" alt=\"502 Bad Gateway\u30a8\u30e9\u30fc\" width=\"1505\" height=\"977\"><figcaption id=\"caption-attachment-48737\" class=\"wp-caption-text\">502 Bad Gateway\u30a8\u30e9\u30fc<\/figcaption><\/figure>\n<h4>Cloudflare\u306e502 Bad Gateway\u30a8\u30e9\u30fc\uff08\u7a2e\u985e\u305d\u306e2\uff09<\/h4>\n<p>\u6b21\u306e\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u305f\u5834\u5408\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u5074\u306b\u767a\u751f\u3057\u305f\u7570\u5e38\u3067\u3059\u3002<\/p>\n<figure style=\"width: 1693px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full \" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2017\/09\/cloudflare-502-bad-gateway-host-1.png\" alt=\"\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u5074\u306eCloudflare\u306e502 Bad Gateway\" width=\"1693\" height=\"1370\"><figcaption class=\"wp-caption-text\">\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u5074\u306eCloudflare\u306e502 Bad Gateway<\/figcaption><\/figure>\n<h4>GoDaddy\u306e\u30d5\u30a1\u30a4\u30e4\u30fc\u30a6\u30a9\u30fc\u30eb<\/h4>\n<p>\u3053\u3061\u3089\u3082HTTP\u306e502\u30a8\u30e9\u30fc\u3068GoDaddy\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u4f8b\u3067\u3059\u3002\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306b\u3088\u308b\u3053\u306e\u7570\u5e38\u306f\u5b9f\u969b\u306b\u767a\u751f\u3057\u3066\u3044\u308b\u306e\u306f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u306f\u306a\u304f\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\uff08\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\uff09\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_47771\" aria-describedby=\"caption-attachment-47771\" style=\"width: 906px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-47771 size-full\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/2017\/09\/godaddy-firewall-e1560784840822-1.png\" alt=\"HTTP 502\u3068GoDaddy\u306e\u30d5\u30a1\u30a4\u30e4\u30fc\u30a6\u30a9\u30fc\u30eb\" width=\"906\" height=\"425\"><figcaption id=\"caption-attachment-47771\" class=\"wp-caption-text\">HTTP 502\u3068GoDaddy\u306e\u30d5\u30a1\u30a4\u30e4\u30fc\u30a6\u30a9\u30fc\u30eb<\/figcaption><\/figure>\n<h3>6.\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u30c6\u30fc\u30de\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u304c\u30b9\u30af\u30ea\u30d7\u30c8\u53ca\u3073\u30af\u30a8\u30ea\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3059\u308b\u3088\u304f\u3042\u308b\u7406\u7531\u306f\u3001\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u307e\u305f\u306f\u30c6\u30fc\u30de\u306e<strong>\u60aa\u3044\u30b3\u30fc\u30c9<\/strong>\u3067\u3059\u3002\u8aa4\u3063\u3066\u8a2d\u5b9a\u3055\u308c\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u30d7\u30e9\u30b0\u30a4\u30f3\u304c502\u30a8\u30e9\u30fc\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u3082\u307f\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u306b\u3059\u308b\u3060\u3051\u3067\u306f\u3001\u30c7\u30fc\u30bf\u3092\u5931\u3046\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><a href=\"https:\/\/staging.kinsta.site\/knowledgebase\/wordpress-admin\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u7ba1\u7406\u753b\u9762\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b<\/a>\u5834\u5408\u306f\u3001\u300c\u30d7\u30e9\u30b0\u30a4\u30f3\u300d\u3092\u30a2\u30af\u30bb\u30b9\u3057\u3001\u300c\u4e00\u62ec\u64cd\u4f5c\u300d\u30e1\u30cb\u30e5\u30fc\u306e\u300c\u7121\u52b9\u306b\u3059\u308b\u300d\u3092\u9078\u629e\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001<a href=\"https:\/\/staging.kinsta.site\/knowledgebase\/disable-wordpress-plugins\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u7121\u52b9\u306b\u306a\u308a\u307e\u3059<\/a>\u3002\u3053\u308c\u3067\u554f\u984c\u304c\u89e3\u6c7a\u3057\u305f\u5834\u5408\u306f\u3001\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u30921\u3064\u305a\u3064\u8d77\u52d5\u3057\u3001\u8d77\u52d5\u3057\u59cb\u3081\u305f\u5ea6\u306b\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u307e\u3059\u3002502 Bad Gateway Error\u304c\u518d\u767a\u3059\u308b\u3068\u3001\u539f\u56e0\u3068\u306a\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7279\u5b9a\u3067\u304d\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u958b\u767a\u8005\u306b\u554f\u3044\u5408\u308f\u305b\u3059\u308b\u304b\u3001WordPress\u30ea\u30dd\u30b8\u30c8\u30ea\u3067\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure style=\"width: 1672px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2017\/08\/deactivate-all-plugins-1.png\" alt=\"\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u306b\u3059\u308b\" width=\"1672\" height=\"818\"><figcaption class=\"wp-caption-text\">\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u7121\u52b9\u306b\u3059\u308b<\/figcaption><\/figure>\n<p>\u7ba1\u7406\u753b\u9762\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001FTP\u7d4c\u7531\u3067\u30b5\u30fc\u30d0\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u30d5\u30a9\u30eb\u30c0\u306e\u540d\u524d\u3092\u300cplugins_old\u300d\u306a\u3069\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u518d\u5ea6\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3067\u30a8\u30e9\u30fc\u304c\u56de\u5fa9\u3057\u305f\u5834\u5408\u306b\u306f\u3001\u5404\u30d7\u30e9\u30b0\u30a4\u30f3\u30921\u3064\u305a\u3064\u30c6\u30b9\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u30d5\u30a9\u30eb\u30c0\u306e\u540d\u524d\u3092\u300cplugins\u300d\u306b\u623b\u3057\u3001\u305d\u306e\u4e2d\u306e\u5404\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u540d\u3092\u9806\u756a\u306b\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n<figure style=\"width: 1229px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full \" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2017\/08\/rename-plugin-folder.png\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u540d\u3092\u5909\u66f4\u3059\u308b\" width=\"1229\" height=\"470\"><figcaption class=\"wp-caption-text\">\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30d5\u30a9\u30eb\u30c0\u540d\u3092\u5909\u66f4\u3059\u308b<\/figcaption><\/figure>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u3001\u30c6\u30fc\u30de\u3001WordPress\u306e\u30b3\u30a2\u304c\u5e38\u306b<strong>\u6700\u65b0\u7248\u3067\u3042\u308b<\/strong>\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u306f\u3001\u3054\u5229\u7528\u306ePHP\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002\u4e0d\u660e\u70b9\u304c\u3054\u3056\u3044\u307e\u3057\u305f\u3089\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4f1a\u793e\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002Kinsta\u3067\u306f\u3001<a href=\"https:\/\/staging.kinsta.site\/blog\/wordpress-performance-new-relic\/\" target=\"_blank\" rel=\"noopener noreferrer\">New Relic<\/a>\u306a\u3069\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u65b9\u6cd5\u3092\u63a1\u7528\u3057\u3001<a href=\"https:\/\/staging.kinsta.site\/blog\/debugging-wordpress-performance\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u304a\u5ba2\u69d8\u306e\u5236\u9650\u7570\u5e38\u3092\u5f15\u304d\u8d77\u3053\u3059\u30d7\u30e9\u30b0\u30a4\u30f3\u3001\u30af\u30a8\u30ea\u3001\u307e\u305f\u306f\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7279\u5b9a\u3057\u307e\u3059<\/a>\u3002\u72ec\u81ea\u306e\u30ab\u30b9\u30bf\u30e0\u306e<a href=\"https:\/\/staging.kinsta.site\/docs\/custom-new-relic-tracking\/\" target=\"_blank\" rel=\"noopener noreferrer\">New Relic\u30ad\u30fc<\/a>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_13005\" aria-describedby=\"caption-attachment-13005\" style=\"width: 1905px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-13005\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/2017\/08\/time-consuming-database-calls.png\" alt=\"\u6642\u9593\u306e\u304b\u304b\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30af\u30a8\u30ea\" width=\"1905\" height=\"1307\"><figcaption id=\"caption-attachment-13005\" class=\"wp-caption-text\">\u6642\u9593\u306e\u304b\u304b\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30af\u30a8\u30ea<\/figcaption><\/figure>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30af\u30a8\u30ea\u307e\u305f\u306f\u30b3\u30fc\u30c9\u306e\u7570\u5e38\u304c\u672c\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3067\u3042\u308b\u5834\u5408\u306f\u3001\u5bfe\u5fdc\u306f<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/hire-wordpress-developer\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u306e\u958b\u767a\u8005<\/a>\u306b\u4efb\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>7. \u30ed\u30b0\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u307e\u305f\u3001<a href=\"https:\/\/staging.kinsta.site\/jp\/knowledgebase\/wordpress-error-log\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30a8\u30e9\u30fc\u30ed\u30b0<\/a>\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002Kinsta\u306e\u304a\u5ba2\u69d8\u306f\u3001MyKinsta\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306e\u30ed\u30b0\u30d3\u30e5\u30fc\u30a2\u3092\u4f7f\u7528\u3057\u3001\u7c21\u5358\u306b\u30a8\u30e9\u30fc\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u8d77\u56e0\u3059\u308b\u30a8\u30e9\u30fc\u306e\u5834\u5408\u306b\u306f\u3001\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_31548\" aria-describedby=\"caption-attachment-31548\" style=\"width: 1426px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31548 size-full\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-error-logs0.png\" alt=\"502 Bad Gateway Error\u306e\u767a\u751f\u6642\u306b\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u3092\u78ba\u8a8d\u3059\u308b\" width=\"1426\" height=\"900\" srcset=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-error-logs0.png 1426w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-error-logs0-300x189.png 300w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-error-logs0-1024x646.png 1024w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-error-logs0-768x485.png 768w\" sizes=\"auto, (max-width: 1426px) 100vw, 1426px\" \/><figcaption id=\"caption-attachment-31548\" class=\"wp-caption-text\">502 Bad Gateway Error\u306e\u767a\u751f\u6642\u306b\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u3092\u78ba\u8a8d\u3059\u308b<\/figcaption><\/figure>\n<p>\u3042\u306a\u305f\u306e\u30db\u30b9\u30c8\u306b\u306f\u30ed\u30ae\u30f3\u30b0\u30c4\u30fc\u30eb\u304c\u306a\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u30b3\u30fc\u30c9\u3092<a href=\"https:\/\/staging.kinsta.site\/jp\/blog\/wp-config-php\/\" target=\"_blank\" rel=\"noopener noreferrer\">wp-config.php<\/a>\u30d5\u30a1\u30a4\u30eb\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u30ed\u30ae\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">define( 'WP_DEBUG', true );\ndefine( 'WP_DEBUG_LOG', true );\ndefine( 'WP_DEBUG_DISPLAY', false );<\/code><\/pre>\n<p>WordPress\u306e\u30c7\u30d0\u30c3\u30b0\u30e2\u30fc\u30c9\u306e\u6709\u52b9\u5316\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089\u306e<a href=\"https:\/\/staging.kinsta.site\/blog\/wordpress-debug\/\">\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30ed\u30b0\u306f\u901a\u5e38\u3001\/wp-content\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u3042\u308a\u307e\u3059\u3002Kinsta\u3068\u540c\u69d8\u306b\u3001\u300clogs\u300d\u3068\u3044\u3046\u5c02\u7528\u306e\u30d5\u30a9\u30eb\u30c0\u304c\u3042\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6535\" src=\"https:\/\/staging.kinsta.site\/wp-content\/uploads\/2015\/08\/wordpress-error-logs-folder-sftp.png\" alt=\"wordpress\u30a8\u30e9\u30fc\u30ed\u30b0\u30d5\u30a9\u30eb\u30c0sftp\" width=\"1314\" height=\"481\"><\/p>\n<p>\u307e\u305f\u3001<a href=\"https:\/\/staging.kinsta.site\/knowledgebase\/what-is-apache\/\" target=\"_blank\" rel=\"noopener noreferrer\">Apache<\/a>\u3068NGINX\u306e\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3082\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u3075\u3041\u3044\u3064\u306e\u4e00\u822c\u7684\u306a\u5834\u6240\u306f\uff1a<\/p>\n<ul>\n<li><strong>Apache:<\/strong>\u00a0\/var\/log\/apache2\/error.log<\/li>\n<li><strong>NGINX:<\/strong>\u00a0\/var\/log\/nginx\/error.log<\/li>\n<\/ul>\n<p>Kinsta\u306e\u304a\u5ba2\u69d8\u306b\u306f\u3001502\u30a8\u30e9\u30fc\u306e\u5408\u8a08\u6570\u3068\u983b\u5ea6\u3092\u628a\u63e1\u3059\u308b\u306b\u5f53\u793e\u306e<a href=\"https:\/\/staging.kinsta.site\/docs\/mykinsta-analytics\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u5206\u6790\u30c4\u30fc\u30eb<\/a>\u3082\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u3079\u304d\u767a\u751f\u4e2d\u306e\u7570\u5e38\u306a\u306e\u304b\u3001\u89e3\u6c7a\u6e08\u307f\u306e\u7570\u5e38\u306a\u306e\u304b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_31550\" aria-describedby=\"caption-attachment-31550\" style=\"width: 1033px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31550 size-full\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-500-error-breakdown0.png\" alt=\"\u30ec\u30b9\u30dd\u30f3\u30b9\u5206\u6790500\u30a8\u30e9\u30fc\u306e\u5185\u8a33\" width=\"1033\" height=\"362\" srcset=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-500-error-breakdown0.png 1033w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-500-error-breakdown0-300x105.png 300w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-500-error-breakdown0-1024x359.png 1024w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-500-error-breakdown0-768x269.png 768w\" sizes=\"auto, (max-width: 1033px) 100vw, 1033px\" \/><figcaption id=\"caption-attachment-31550\" class=\"wp-caption-text\">\u30ec\u30b9\u30dd\u30f3\u30b9\u5206\u6790500\u30a8\u30e9\u30fc\u306e\u5185\u8a33<\/figcaption><\/figure>\n<h3>8. PHP\u3092\u518d\u8d77\u52d5\u3059\u308b<\/h3>\n<p>\u6700\u5f8c\u306b\u3001PHP\u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002Kinsta\u306e\u304a\u5ba2\u69d8\u306f\u3001MyKinsta\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306e\u30c4\u30fc\u30eb\u30e1\u30cb\u30e5\u30fc\u3092\u4f7f\u7528\u3057\u3001<a href=\"https:\/\/staging.kinsta.site\/docs\/restart-php\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u3092\u7c21\u5358\u306b\u518d\u8d77\u52d5<\/a>\u3067\u304d\u307e\u3059\u3002\u3042\u306a\u305f\u306e\u30db\u30b9\u30c8\u304c\u3053\u308c\u3092\u63d0\u4f9b\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8\u3092\u958b\u3044\u3066PHP\u3092\u518d\u8d77\u52d5\u3059\u308b\u3088\u3046\u306b\u983c\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_47776\" aria-describedby=\"caption-attachment-47776\" style=\"width: 1584px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-47776\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/2017\/09\/restart-php-1.png\" alt=\"PHP\u3092\u518d\u8d77\u52d5\u3059\u308b\" width=\"1584\" height=\"953\"><figcaption id=\"caption-attachment-47776\" class=\"wp-caption-text\">PHP\u3092\u518d\u8d77\u52d5\u3059\u308b<\/figcaption><\/figure>\n<figure id=\"attachment_31552\" aria-describedby=\"caption-attachment-31552\" style=\"width: 1427px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-31552 size-full\" src=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-restart-php0.png\" alt=\"PHP\u3092\u518d\u8d77\u52d5\u3059\u308b\" width=\"1427\" height=\"786\" srcset=\"https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-restart-php0.png 1427w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-restart-php0-300x165.png 300w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-restart-php0-1024x564.png 1024w, https:\/\/staging.kinsta.site\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mykinsta-restart-php0-768x423.png 768w\" sizes=\"auto, (max-width: 1427px) 100vw, 1427px\" \/><figcaption id=\"caption-attachment-31552\" class=\"wp-caption-text\">PHP\u3092\u518d\u8d77\u52d5\u3059\u308b<\/figcaption><\/figure>\n<h3>9. PHP\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u7570\u5e38<\/h3>\n<p>PHP\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u7570\u5e38\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u5358\u4e00\u306ePHP\u30d7\u30ed\u30bb\u30b9\u304c\u3001PHP\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u8a2d\u5b9a\u3055\u308c\u305f<code>max_execution_time<\/code>\u307e\u305f\u306f<code>max_input_time<\/code>\u3088\u308a\u9577\u304f\u5b9f\u884c\u3055\u308c\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u5927\u898f\u6a21\u306e<a href=\"https:\/\/staging.kinsta.site\/knowledgebase\/wordpress-import-issues\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u30a4\u30f3\u30dd\u30fc\u30c8<\/a>\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u3001\u3088\u304f\u3042\u308b\u73fe\u8c61\u3067\u3059\u3002\u3053\u306e\u73fe\u8c61\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u3001502 Bad Gateway Error\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002PHP\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u7570\u5e38\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u4e0a\u8a18\u306e\u5024\u3092\u5897\u3084\u3059\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u5024\u307e\u305f\u306f\u305d\u306e\u8a2d\u5b9a\u5024\u306e\u5897\u52a0\u306b\u3064\u3044\u3066\u306f\u3001\u73fe\u5728\u306eWordPress\u30db\u30b9\u30c8\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002Kinsta\u3067\u306f\u3001\u4e0a\u8a18\u306e\u5024\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067300\u79d2\uff085\u5206\uff09\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5f53\u793e\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u5229\u7528\u53ef\u80fd\u306a\u6700\u5927\u306ePHP\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5024\u306f\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30e9\u30f3\u306b\u3088\u308a\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3054\u89a7\u306e\u3068\u304a\u308a\u3001WordPress\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e502 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