{"id":11422,"date":"2026-02-12T09:22:52","date_gmt":"2026-02-12T09:22:52","guid":{"rendered":"https:\/\/howtogeek.blog\/ja\/?p=11422"},"modified":"2026-02-12T09:22:52","modified_gmt":"2026-02-12T09:22:52","slug":"%e3%80%8cerr_ssl_version_or_cipher_mismatch%e3%80%8d%e3%82%a8%e3%83%a9%e3%83%bc%e3%81%ae%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/ja\/%e3%80%8cerr_ssl_version_or_cipher_mismatch%e3%80%8d%e3%82%a8%e3%83%a9%e3%83%bc%e3%81%ae%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u300cERR_SSL_VERSION_OR_CIPHER_MISMATCH\u300d\u30a8\u30e9\u30fc\u306e\u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"<p><strong>Chrome\u3084Edge\u3067ERR_SSL_VERSION_OR_CIPHER_MISMATCH<\/strong>\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u7279\u306b\u53e4\u3044\u30b5\u30a4\u30c8\u3084\u8a2d\u5b9a\u30df\u30b9\u306e\u3042\u308b\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u305f\u5834\u5408\u306b\u3001\u30a4\u30e9\u30a4\u30e9\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u4e3b\u306b\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u554f\u984c\uff08\u3064\u307e\u308a\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u65b0\u3057\u3044\u5b89\u5168\u306aSSL\/TLS\u8a2d\u5b9a\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\uff09\u3067\u3059\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u5074\u3067\u3082\u3044\u304f\u3064\u304b\u5bfe\u7b56\u3092\u8b1b\u3058\u3089\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u60c5\u5831\u304c\u5f71\u97ff\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308c\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u306b\u554f\u984c\u304c\u3042\u308b\u3068\u5224\u65ad\u3057\u3066\u63a5\u7d9a\u3092\u62d2\u5426\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u56de\u907f\u307e\u305f\u306f\u4e00\u6642\u7684\u306b\u4fee\u6b63\u3059\u308b\u305f\u3081\u306e\u3001\u691c\u8a3c\u6e08\u307f\u306e\u3084\u3084\u30cf\u30c3\u30af\u7684\u306a\u65b9\u6cd5\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u3001\u305d\u306e\u539f\u56e0\u306b\u3064\u3044\u3066\u3082\u8003\u5bdf\u3057\u307e\u3059\u3002<\/p>\n<h2>ERR_SSL_VERSION_OR_CIPHER_MISMATCH \u306e\u4fee\u6b63\u65b9\u6cd5<\/h2>\n<h3>\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\uff08\u30b5\u30a4\u30c8\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b\u5834\u5408\uff09<\/h3>\n<p>URL\u30d0\u30fc\u306e<strong>\u5357\u4eac\u9320<\/strong>\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066SSL\u8a3c\u660e\u66f8\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304b\uff1f <strong>\u300c\u63a5\u7d9a\u306f\u5b89\u5168\u3067\u3059\u300d&gt;\u300c\u8a3c\u660e\u66f8\u306f\u6709\u52b9\u3067\u3059\u300d<\/strong>\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002TLS\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u8a3c\u660e\u66f8\u306e\u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><strong>\u8a73\u7d30<\/strong>\u30bf\u30d6\u3067SSL\/TLS\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7406\u60f3\u7684\u306b\u306fTLS 1.2\u4ee5\u4e0a\u3067\u3059\u3002\u305d\u308c\u672a\u6e80\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001\u4e0d\u4e00\u81f4\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>\u30b5\u30fc\u30d0\u30fc\u304cSSL 3.0\u3084TLS 1.0\u306a\u3069\u306e\u975e\u63a8\u5968\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002SSL <a href=\"https:\/\/ssllabs.com\/ssltest\/\" rel=\"noopener noreferrer\" target=\"_blank\">Labs SSL Test<\/a>\u306a\u3069\u306e\u30c4\u30fc\u30eb\u306f\u3001URL\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u7c21\u5358\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u8a3c\u660e\u66f8\u306e\u30db\u30b9\u30c8\u540d\u304c\u30b5\u30a4\u30c8\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u518d\u5ea6\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30db\u30b9\u30c8\u540d\u306e\u4e0d\u4e00\u81f4\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u4e0d\u5177\u5408\u306e\u539f\u56e0\u3068\u306a\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><strong>Cloudflare\u306a\u3069\u306eCDN\u30b5\u30fc\u30d3\u30b9\u3092\u3054\u5229\u7528\u306e\u5834\u5408\u306f\u3001 Universal SSL\u306e<\/strong>\u7121\u52b9\u5316\u3068\u6709\u52b9\u5316\u3001\u30e2\u30fc\u30c9\uff08Flexible\u3001Full\u3001Strict\uff09\u306e\u5207\u308a\u66ff\u3048\u306a\u3069\u3001\u8a2d\u5b9a\u306e\u5909\u66f4\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u8a2d\u5b9a\u30df\u30b9\u304c\u6839\u672c\u7684\u306a\u539f\u56e0\u3068\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u5b9f\u884c\u3057\u306a\u3044\u9650\u308a\u3001\u3053\u306e\u4fee\u6b63\u306f\u5e73\u5747\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u5411\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u77e5\u8b58\u306f\u529b\u3067\u3059\u3001\u305d\u3046\u3067\u3059\u3088\u306d?<\/p>\n<h3>SSL \u8b66\u544a\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\uff08\u6ce8\u610f\u3042\u308a\uff09<\/h3>\n<p>\u3053\u308c\u306f\u4e00\u7a2e\u306e\u30c1\u30fc\u30c8\u3067\u3059\u304c\u3001\u3069\u3046\u3057\u3066\u3082\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\uff08\u4f8b\u3048\u3070\u3001\u30ed\u30fc\u30ab\u30eb\u30eb\u30fc\u30bf\u30fc\u3084\u53e4\u3044SSL\u8a2d\u5b9a\u3092\u6301\u3064\u793e\u5185\u30c7\u30d0\u30a4\u30b9\u306a\u3069\uff09\u3001Chrome\u3067\u306f<kbd>thisisunsafe<\/kbd>\u8b66\u544a\u30da\u30fc\u30b8\u3092\u8868\u793a\u3057\u305f\u307e\u307e\u5165\u529b\u3067\u304d\u307e\u3059\u3002\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3084\u78ba\u8a8d\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u30d6\u30e9\u30a6\u30b6\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8b66\u544a\u3092\u7121\u8996\u3057\u3066\u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u307f\u3001\u901a\u5e38\u306e\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u306b\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002\u4e3b\u306b\u3001\u30b5\u30a4\u30c8\u4e0a\u306e\u30c4\u30fc\u30eb\u3084\u53e4\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u3092\u6301\u3064\u30c7\u30d0\u30a4\u30b9\u306b\u7d20\u65e9\u304f\u30a2\u30af\u30bb\u30b9\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5225\u306e\u30cf\u30c3\u30af\u3068\u3057\u3066\u3001\u5225\u306e\u30d6\u30e9\u30a6\u30b6\u3092\u8a66\u3059\u3068\u3044\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002\u3042\u308b\u30d6\u30e9\u30a6\u30b6\u304c\u5358\u306b\u8a2d\u5b9a\u306b\u3053\u3060\u308f\u308a\u3059\u304e\u3066\u3044\u3066\u3001\u5225\u306e\u30d6\u30e9\u30a6\u30b6\u304c\u53e4\u3044SSL\u8a2d\u5b9a\u3092\u5fd8\u308c\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002Chrome\u3084Firefox\u306e\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u3046\u3068\uff08\u9577\u671f\u7684\u306b\u306f\u304a\u52e7\u3081\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u7dca\u6025\u306e\u5834\u5408\u306f\u554f\u984c\u3042\u308a\u307e\u305b\u3093\uff09\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u969c\u58c1\u3092\u7a81\u7834\u3067\u304d\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3067\u3042\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u30d6\u30e9\u30a6\u30b6\u306f\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u50be\u5411\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<h3>TLS \u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9 (\u9577\u671f\u7684\u306b\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093)<\/h3>\n<p>\u3053\u3053\u304b\u3089\u304c\u5384\u4ecb\u306a\u3068\u3053\u308d\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306e\u8d77\u52d5\u30d5\u30e9\u30b0\u3084\u8a2d\u5b9a\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001TLS 1.0\u30841.1\u3068\u3044\u3063\u305f\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eTLS\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u6307\u793a\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u306f\u63a5\u7d9a\u306e\u5b89\u5168\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u306e\u3067\u3001\u4e00\u6642\u7684\u306b\u6709\u52b9\u306b\u3057\u3066\u3001\u3067\u304d\u308b\u3060\u3051\u65e9\u304f\u5143\u306b\u623b\u3057\u305f\u65b9\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>Chrome \u306e\u5834\u5408\u3001\u5927\u307e\u304b\u306a\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>Chrome \u3092\u5b8c\u5168\u306b\u9589\u3058\u307e\u3059\u3002<\/li>\n<li>Chrome\u306e\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\uff08\u53f3\u30af\u30ea\u30c3\u30af\u3057\u3066<strong>\u300c\u30b3\u30d4\u30fc\u300d<\/strong>\u3092\u9078\u629e\uff09<\/li>\n<li>\u30b3\u30d4\u30fc\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u3066\u3001<strong>[\u30d7\u30ed\u30d1\u30c6\u30a3]<\/strong>\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<li><strong>Target<\/strong>\u306e\u672b\u5c3e\u306b\u4ee5\u4e0b\u3092\u8ffd\u52a0\u3057\u307e\u3059:\n<\/p>\n<pre><code> --ssl-version-min=tls1 --ssl-version-max=tls1.2<\/code><\/pre>\n<p>\u3053\u308c\u306fChrome\u306bTLS 1.0\u304b\u3089TLS 1.2\u307e\u3067\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u6307\u793a\u3057\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066<code>tls1.1<\/code>\u307e\u305f\u306f\u306b\u7f6e\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044<code>tls1<\/code>\u3002<\/p>\n<\/li>\n<li>\u300cOK\u300d\u3092\u62bc\u3057\u3066\u3001\u305d\u306e\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u3067Chrome\u3092\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a8\u30e9\u30fc\u3092\u56de\u907f\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/li>\n<\/ol>\n<p><strong>Firefox \u306e\u5834\u5408\u306f\u3001 about:config<\/strong>\u3067\u3053\u308c\u3092\u8abf\u6574\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>Firefox \u3092\u958b\u304d\u3001<code>about:config<\/code>\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306b\u5165\u529b\u3057\u3066\u3001\u8b66\u544a\u3092\u53d7\u3051\u5165\u308c\u307e\u3059\u3002<\/li>\n<li>\u691c\u7d22\u3059\u308b<code>security.tls.version<\/code>\u3002<\/li>\n<li><strong>security.tls.version.min<\/strong>\u3068<strong>security.tls.version.max<\/strong>\u3092 0 (SSL 3.0) \u3084 1 (TLS 1.0) \u306a\u3069\u306e\u5024\u306b\u8abf\u6574\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30db\u30fc\u30eb\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u8abf\u6574\u304c\u5b8c\u4e86\u3057\u305f\u3089\u5143\u306b\u623b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<p>\u672c\u5f53\u306b\u56f0\u3063\u3066\u3044\u308b\u5834\u5408\u3084\u3001\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u3084\u793e\u5185\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306e\u307f\u3001\u3053\u306e\u65b9\u6cd5\u3092\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65e5\u5e38\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u304a\u52e7\u3081\u3057\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\uff08\u53e4\u3044\u60c5\u5831\u304c\u6b8b\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\uff09<\/h3>\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305fSSL\u8a3c\u660e\u66f8\u3084\u30b5\u30a4\u30c8\u30c7\u30fc\u30bf\u304c\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u984c\u304c\u306a\u304f\u3066\u3082\u3053\u306e\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30e2\u30fc\u30c9<\/strong>\u307e\u305f\u306f<strong>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30e2\u30fc\u30c9<\/strong>\u3067\u30b5\u30a4\u30c8\u3092\u8aad\u307f\u8fbc\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u3082\u3057\u305d\u3053\u3067\u3082\u554f\u984c\u306a\u304f\u52d5\u4f5c\u3059\u308c\u3070\u3001\u554f\u984c\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>Chrome\u3067\u306f\u3001 \u3092\u62bc\u3057\u3066<kbd>Ctrl + Shift + Del<\/kbd>\u3001\u671f\u9593\u3067<strong>\u300c\u5168\u671f\u9593\u300d<\/strong>\u3092\u9078\u629e\u3057\u3001<strong>\u30c7\u30fc\u30bf\u3092\u6d88\u53bb<\/strong>\u3092\u62bc\u3057\u307e\u3059\u3002Firefox\u3067\u3082\u540c\u3058\u64cd\u4f5c\u3092\u884c\u3044<kbd>Ctrl + Shift + Del<\/kbd>\u3001\u3059\u3079\u3066\uff08Cookie\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30aa\u30d5\u30e9\u30a4\u30f3\u30c7\u30fc\u30bf\uff09\u3092\u9078\u629e\u3057\u3066\u6d88\u53bb\u3057\u307e\u3059\u3002\u3053\u308c\u3067\u3001\u3042\u306e\u5947\u5999\u306a\u4e0d\u4e00\u81f4\u306f\u89e3\u6d88\u3055\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\/\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\uff08\u4e00\u6642\u7684\u306b\uff09<\/h3>\n<p>\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u306e\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u3084\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30c4\u30fc\u30eb\u306f\u3001SSL\u8a3c\u660e\u66f8\u3092\u508d\u53d7\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30b9\u30ad\u30e3\u30f3\u307e\u305f\u306f\u691c\u67fb\u3057\u3088\u3046\u3068\u3059\u308b\u5834\u5408\u3001\u305d\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30a4\u30e4\u30fc\u3092\u4e00\u6642\u7684\u306b\u7121\u52b9\u306b\u3057\u3066\u3001\u3082\u3046\u4e00\u5ea6\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002\u554f\u984c\u304c\u89e3\u6c7a\u3057\u305f\u5834\u5408\u306f\u3001\u305d\u308c\u304c\u539f\u56e0\u3067\u3059\u3002\u3082\u3061\u308d\u3093\u3001\u5fc5\u305a\u6709\u52b9\u306b\u623b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u3067\u3082\u554f\u984c\u304c\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001Windows Defender\u306b\u5207\u308a\u66ff\u3048\u308b\u65b9\u304c\u30b9\u30e0\u30fc\u30ba\u3067\u5b89\u5168\u306a\u9078\u629e\u80a2\u3068\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u6b63\u76f4\u8a00\u3063\u3066\u3001\u3053\u306e\u30a8\u30e9\u30fc\u81ea\u4f53\u306f\u982d\u3092\u60a9\u307e\u305b\u308b\u554f\u984c\u3067\u3059\u304c\u3001\u4e0a\u8a18\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u30a2\u30af\u30bb\u30b9\u304c\u5fc5\u8981\u306a\u969b\u306b\u3042\u308b\u7a0b\u5ea6\u306e\u67d4\u8edf\u6027\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306f\u4e3b\u306b\u56de\u907f\u7b56\u3067\u3042\u308b\u3053\u3068\u306b\u7559\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30fc\u30d0\u30fc\u3092\u81ea\u5206\u3067\u7ba1\u7406\u3057\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u771f\u306e\u4fee\u6b63\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u6240\u6709\u8005\u307e\u305f\u306f\u7ba1\u7406\u8005\u306b\u4f9d\u983c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chrome\u3084Edge\u3067ERR_SSL_VERSION_OR_CIPHER_MISMATCH\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u7279\u306b\u53e4\u3044\u30b5\u30a4\u30c8\u3084\u8a2d\u5b9a\u30df\u30b9\u306e\u3042\u308b\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u305f\u5834\u5408\u306b\u3001\u30a4\u30e9\u30a4\u30e9\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u4e3b\u306b\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u554f\u984c\uff08\u3064\u307e\u308a\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u65b0\u3057\u3044\u5b89\u5168\u306aSSL\/TLS\u8a2d\u5b9a\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\uff09\u3067\u3059\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u5074\u3067\u3082\u3044\u304f\u3064\u304b\u5bfe\u7b56\u3092\u8b1b\u3058\u3089\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u60c5\u5831\u304c\u5f71\u97ff\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308c\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u306b\u554f\u984c\u304c\u3042\u308b\u3068\u5224\u65ad\u3057\u3066\u63a5\u7d9a\u3092\u62d2\u5426\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u56de\u907f\u307e\u305f\u306f\u4e00\u6642\u7684\u306b\u4fee\u6b63\u3059\u308b\u305f\u3081\u306e\u3001\u691c\u8a3c\u6e08\u307f\u306e\u3084\u3084\u30cf\u30c3\u30af\u7684\u306a\u65b9\u6cd5\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u3001\u305d\u306e\u539f\u56e0\u306b\u3064\u3044\u3066\u3082\u8003\u5bdf\u3057\u307e\u3059\u3002 ERR_SSL_VERSION_OR_CIPHER_MISMATCH \u306e\u4fee\u6b63\u65b9\u6cd5 \u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\uff08\u30b5\u30a4\u30c8\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b\u5834\u5408\uff09 URL\u30d0\u30fc\u306e\u5357\u4eac\u9320\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066SSL\u8a3c\u660e\u66f8\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304b\uff1f \u300c\u63a5\u7d9a\u306f\u5b89\u5168\u3067\u3059\u300d&gt;\u300c\u8a3c\u660e\u66f8\u306f\u6709\u52b9\u3067\u3059\u300d\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002TLS\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u8a3c\u660e\u66f8\u306e\u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u8a73\u7d30\u30bf\u30d6\u3067SSL\/TLS\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7406\u60f3\u7684\u306b\u306fTLS 1.2\u4ee5\u4e0a\u3067\u3059\u3002\u305d\u308c\u672a\u6e80\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001\u4e0d\u4e00\u81f4\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u30b5\u30fc\u30d0\u30fc\u304cSSL 3.0\u3084TLS 1.0\u306a\u3069\u306e\u975e\u63a8\u5968\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002SSL Labs SSL Test\u306a\u3069\u306e\u30c4\u30fc\u30eb\u306f\u3001URL\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u7c21\u5358\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002 \u8a3c\u660e\u66f8\u306e\u30db\u30b9\u30c8\u540d\u304c\u30b5\u30a4\u30c8\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u518d\u5ea6\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30db\u30b9\u30c8\u540d\u306e\u4e0d\u4e00\u81f4\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u4e0d\u5177\u5408\u306e\u539f\u56e0\u3068\u306a\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002 Cloudflare\u306a\u3069\u306eCDN\u30b5\u30fc\u30d3\u30b9\u3092\u3054\u5229\u7528\u306e\u5834\u5408\u306f\u3001 Universal SSL\u306e\u7121\u52b9\u5316\u3068\u6709\u52b9\u5316\u3001\u30e2\u30fc\u30c9\uff08Flexible\u3001Full\u3001Strict\uff09\u306e\u5207\u308a\u66ff\u3048\u306a\u3069\u3001\u8a2d\u5b9a\u306e\u5909\u66f4\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u8a2d\u5b9a\u30df\u30b9\u304c\u6839\u672c\u7684\u306a\u539f\u56e0\u3068\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002 \u6b8b\u5ff5\u306a\u304c\u3089\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u5b9f\u884c\u3057\u306a\u3044\u9650\u308a\u3001\u3053\u306e\u4fee\u6b63\u306f\u5e73\u5747\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u5411\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u77e5\u8b58\u306f\u529b\u3067\u3059\u3001\u305d\u3046\u3067\u3059\u3088\u306d? SSL \u8b66\u544a\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\uff08\u6ce8\u610f\u3042\u308a\uff09 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