{"id":384,"date":"2023-12-22T07:18:50","date_gmt":"2023-12-22T07:18:50","guid":{"rendered":"https:\/\/howtogeek.blog\/ja\/?p=384"},"modified":"2023-12-22T07:18:50","modified_gmt":"2023-12-22T07:18:50","slug":"fix-vpn-failed-due-to-unsuccessful-domain-name-resolution-ja","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/ja\/fix-vpn-failed-due-to-unsuccessful-domain-name-resolution-ja\/","title":{"rendered":"\u4fee\u6b63: \u30c9\u30e1\u30a4\u30f3\u540d\u89e3\u6c7a\u304c\u5931\u6557\u3057\u305f\u305f\u3081\u3001VPN \u304c\u5931\u6557\u3057\u307e\u3057\u305f"},"content":{"rendered":"

\u3053\u306e\u554f\u984c\u306f\u3001Cisco AnyConnect Secure Mobility Client \u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u591a\u304f\u306e\u30e6\u30fc\u30b6\u3067\u767a\u751f\u3057\u307e\u3057\u305f\u3002 \u300c\u30c9\u30e1\u30a4\u30f3\u540d\u89e3\u6c7a\u304c\u5931\u6557\u3057\u305f\u305f\u3081 VPN \u306b\u5931\u6557\u3057\u307e\u3057\u305f\u300d\u3068\u3044\u3046\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001Cisco \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c VPN \u63a5\u7d9a\u3092\u6b63\u5e38\u306b\u78ba\u7acb\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002 DNS \u8a2d\u5b9a\u306b\u3082\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u591a\u304f\u306e\u5834\u5408\u3001\u3053\u306e\u554f\u984c\u306f DNS \u3092\u5fae\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3055\u308c\u3001Cisco AnyConnect \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066 VPN \u63a5\u7d9a\u304c\u78ba\u7acb\u3055\u308c\u307e\u3059\u3002 AnyConnect \u304c\u6b63\u3057\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u304a\u308a\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3067\u4f7f\u7528\u3067\u304d\u308b\u72b6\u614b\u3067\u3042\u308b\u3053\u3068\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u304b\u3089\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001AnyConnect \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306e\u969c\u5bb3\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

DNS \u30a8\u30e9\u30fc\u306b\u3088\u308a\u5931\u6557\u3057\u305f VPN \u63a5\u7d9a\u3092\u4fee\u6b63\u3059\u308b\u6700\u826f\u306e\u65b9\u6cd5<\/strong><\/span><\/h2>\n

VPN \u306e\u78ba\u7acb\u306b\u3088\u308a\u3001\u591a\u304f\u306e Windows 11\/10 \u30e6\u30fc\u30b6\u30fc\u304c\u73fe\u5728\u3053\u306e\u554f\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3053\u3067\u3001DNS \u306e\u554f\u984c\u306b\u3088\u308a\u5931\u6557\u3057\u305f VPN \u63a5\u7d9a\u3092\u4fee\u6b63\u3059\u308b\u305f\u3081\u306e\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3092\u30ea\u30b9\u30c8\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u65b9\u6cd5 1: DNS \u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b<\/strong><\/span><\/h3>\n

DNS \u30b5\u30fc\u30d0\u30fc\u306e IP \u3092\u5909\u66f4\u3057\u3066\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306e\u8a2d\u5b9a\u30df\u30b9\u3092\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306f\u3001Google DNS\u3001Open DNS\u3001DNS \u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a DNS \u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u30b3\u30e2\u30c9\u30bb\u30ad\u30e5\u30a2DNS\u3002<\/p>\n

\u3053\u308c\u3089\u3092\u524a\u9664\u3057\u3001Windows \u306e DNS \u8a2d\u5b9a\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u306b\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u3068\u3001\u554f\u984c\u304c\u89e3\u6c7a\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

    \n
  1. Windows 10 \u3067\u306f\u3001\u30b9\u30bf\u30fc\u30c8 \u30e1\u30cb\u30e5\u30fc<\/strong>\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002 a>.\"\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\"<\/li>\n
  2. \u63a5\u7d9a\u3057\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3067\u3001\u305d\u308c\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u3066\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002<\/li>\n
  3. \u6b21\u306b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30d7\u30ed\u30c8\u30b3\u30eb \u30d0\u30fc\u30b8\u30e7\u30f3 4 (TCP\/IPv4)<\/strong> \u3092\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\"\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\u30d0\u30fc\u30b8\u30e7\u30f34<\/li>\n
  4. \u65b0\u3057\u3044\u30c0\u30a4\u30a2\u30ed\u30b0 \u30dc\u30c3\u30af\u30b9\u304c\u8868\u793a\u3055\u308c\u3001DNS \u30b5\u30fc\u30d0\u30fc \u30a2\u30c9\u30ec\u30b9\u3092\u81ea\u52d5\u7684\u306b\u53d6\u5f97\u3059\u308b<\/strong>\u3092\u9078\u629e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\"DNS\u30b5\u30fc\u30d0\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u81ea\u52d5\u53d6\u5f97\u3059\u308b\"<\/li>\n
  5. \u300cOK\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    VPN \u63a5\u7d9a\u5931\u6557\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u4e3b\u306a\u7406\u7531\u306e 1 \u3064\u306f\u3001Cisco VPN \u306a\u3069\u306e\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3 VPN \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u9759\u7684 IP \u63a5\u7d9a\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001Google Public DNS\u3001Open DNS \u306a\u3069\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u52d5\u7684\u8a2d\u5b9a\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

    \u65b9\u6cd5 2: anyconnect.xml \u30d5\u30a1\u30a4\u30eb\u3092\u4fee\u5fa9\u3059\u308b<\/strong><\/span><\/h3>\n

    anyconnect.xml \u30d5\u30a1\u30a4\u30eb\u3092\u4fee\u5fa9\u3059\u308b\u6700\u5584\u306e\u65b9\u6cd5\u306f\u3001\u3053\u306e Cisco AnyConnect \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u9069\u5207\u306b\u524a\u9664\u3057\u3001PC \u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6b21\u306b\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u65b0\u3057\u3044\u30b3\u30d4\u30fc\u3092\u6bb5\u968e\u7684\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u6b63\u3057\u304f\u53d6\u308a\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

    \u300c\u30c9\u30e1\u30a4\u30f3\u540d\u89e3\u6c7a\u306b\u5931\u6557\u3057\u305f\u305f\u3081\u3001VPN \u63a5\u7d9a\u306b\u5931\u6557\u3057\u307e\u3057\u305f\u300d\u30a8\u30e9\u30fc\u306e\u4e3b\u306a\u554f\u984c\u306f\u3001anyconnect.xml \u30d5\u30a1\u30a4\u30eb\u304c\u7834\u640d\u3057\u3001VPN \u63a5\u7d9a\u3092\u78ba\u7acb\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u5225\u306e\u30ea\u30fc\u30b8\u30e7\u30f3\u3078\u306e\u63a5\u7d9a\u3092\u8a66\u307f\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u304a\u305d\u3089\u304f\u63a5\u7d9a\u304c\u6210\u529f\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u4fee\u5fa9\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

    \"anyconnect.xml<\/figure>\n

    \u65b9\u6cd5 3: \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u3092\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/strong><\/span><\/h3>\n

    \u6700\u5f8c\u306b\u3001\u4e0a\u8a18\u306e\u3059\u3079\u3066\u306e\u65b9\u6cd5\u3092\u5b9f\u884c\u3057\u3066\u3082\u554f\u984c\u304c\u89e3\u6c7a\u3055\u308c\u306a\u3044\u5834\u5408\u3001\u8003\u3048\u3089\u308c\u308b\u6700\u5f8c\u306e\u65b9\u6cd5\u306f\u3001\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306e\u65b0\u3057\u3044\u30b3\u30d4\u30fc\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u5f8c\u3001\u3059\u3079\u3066\u306e\u30ab\u30b9\u30bf\u30e0 DNS \u8a2d\u5b9a\u3092\u89e3\u6c7a\u3057\u3001Cisco \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

    Windows OS \u3092\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u524d\u306b\u3001\u307e\u305a\u3059\u3079\u3066\u306e\u91cd\u8981\u306a\u30d5\u30a1\u30a4\u30eb\u3068\u30d5\u30a9\u30eb\u30c0\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7<\/u>\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001Windows OS \u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u304b\u3001\u65b0\u3057\u3044\u30b3\u30d4\u30fc\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3059\u3079\u3066\u306e\u8a2d\u5b9a\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001cisco \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u9069\u5207\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001VPN \u63a5\u7d9a\u304c\u6b63\u5e38\u306b\u78ba\u7acb\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n

    \u7de8\u96c6\u30c7\u30b9\u30af\u3088\u308a<\/strong><\/span><\/h4>\n

    \u6700\u5f8c\u306b\u3001\u3053\u308c\u3089\u304c VPN \u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u6700\u826f\u306e\u65b9\u6cd5\u3067\u3042\u308b\u3068\u8a00\u308f\u3056\u308b\u3092\u5f97\u307e\u305b\u3093\u3002\u3053\u306e\u554f\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u308b\u591a\u304f\u306e\u30e6\u30fc\u30b6\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b Cisco AnyConnect \u30bb\u30ad\u30e5\u30a2 \u30e2\u30d3\u30ea\u30c6\u30a3 \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u304b\u3001VPN \u306e\u8a2d\u5b9a\u304c\u9593\u9055\u3063\u3066\u3044\u307e\u3059\u3002\u4e0a\u8a18\u306e\u65b9\u6cd5\u3092 1 \u3064\u305a\u3064\u8a66\u3057\u3066\u3001\u3069\u308c\u304c\u52b9\u679c\u7684\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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