{"id":310124,"date":"2023-12-14T18:00:12","date_gmt":"2023-12-15T02:00:12","guid":{"rendered":"https:\/\/www.paloaltonetworks.com\/blog\/?p=310124"},"modified":"2023-12-17T16:27:19","modified_gmt":"2023-12-18T00:27:19","slug":"dns-security-with-proxy-environment","status":"publish","type":"post","link":"https:\/\/origin-researchcenter.paloaltonetworks.com\/blog\/2023\/12\/dns-security-with-proxy-environment\/?lang=ja","title":{"rendered":"\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u3067\u3082\u5371\u306a\u3044DNS\u3068\u3044\u3046\u7d4c\u8def\u3068\u305d\u306e\u5bfe\u7b56"},"content":{"rendered":"<h2><a id=\"post-310124-_anwx2w62epm9\"><\/a>\u306f\u3058\u3081\u306b<\/h2>\n<p>SaaS\u3084PaaS\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30d1\u30d6\u30ea\u30c3\u30af\u30af\u30e9\u30a6\u30c9\u306e\u5229\u6d3b\u7528\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u305d\u3053\u306b\u30b3\u30ed\u30ca\u798d\u304c\u91cd\u306a\u3063\u3066\u3001\u7d14\u7c8b\u306a\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u306f\u4ee5\u524d\u3088\u308a\u306f\u6e1b\u3063\u3066\u304d\u305f\u3088\u3046\u306b\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u4e00\u65b9\u3067\u3001\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u74b0\u5883\u306e\u5229\u7528\u3082\u7d9a\u3044\u3066\u3044\u307e\u3059\u3057\u3001IPA\u304c\u9ad8\u5ea6\u6a19\u7684\u578b\u653b\u6483\u306b\u5411\u3051\u305f\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u30ac\u30a4\u30c9\u3067\u305d\u306e\u5229\u7528\u3092\u63a8\u5968<a href=\"#post-310124-_3t1p7p5g6ny6\"><sup>[1]<\/sup><\/a>\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u3001\u3053\u3046\u3057\u305f\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u304c\u305d\u3046\u7c21\u5358\u306b\u306a\u304f\u306a\u308b\u3053\u3068\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u4eca\u6708\u306f\u3001\u30d7\u30ed\u30ad\u30b7\u3067\u9694\u96e2\u3057\u305f\u74b0\u5883\u3067\u3082\u629c\u3051\u7a74\u3068\u306a\u308a\u304c\u3061\u306a\u3001DNS\u306e\u8a71\u3092\u5b9f\u4f8b\u3092\u4ea4\u3048\u3064\u3064\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002\u307e\u305f\u305d\u306e\u5bfe\u7b56\u306b\u5f0a\u793e\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u304c\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3064\u306e\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2><a id=\"post-310124-_fwaloip88ovj\"><\/a>\u300c\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u3060\u304b\u3089\u5b89\u5168\u300d\u3068\u3044\u3046\u6cb9\u65ad<\/h2>\n<p>\u4ee5\u4e0b\u306e\u56f31\u306f\u3001\u3088\u304f\u3042\u308b\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u3067\u300cwww.paloaltonetworks.com\u300d\u306b\u5bfe\u3057\u3066 Ping\u3092\u5b9f\u884c\u3057\u305f\u3088\u3046\u3059\u3067\u3059\u3002\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u4e0b\u306e\u7aef\u672b\u304c\u304a\u624b\u5143\u306b\u3042\u308c\u3070\u5b9f\u969b\u306b\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure id=\"attachment_310126\" aria-describedby=\"caption-attachment-310126\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/1-ping.png\"><div style=\"max-width:100%\" data-width=\"900\"><span class=\"ar-custom\" style=\"padding-bottom:57.11%;\"><img loading=\"lazy\" decoding=\"async\"  class=\"wp-image-310126 lozad\"  data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/1-ping.png\" alt=\"\u56f31. \u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u306b\u3042\u308b\u7aef\u672b\u4e0a\u3067 Ping \u3092\u5b9f\u884c\u3057\u305f\u3068\u3053\u308d\u3002\u8981\u6c42\u306f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u3066\u3044\u308b\" width=\"900\" height=\"514\" \/><\/span><\/div><\/a><figcaption id=\"caption-attachment-310126\" class=\"wp-caption-text\">\u56f31. \u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u306b\u3042\u308b\u7aef\u672b\u4e0a\u3067 Ping \u3092\u5b9f\u884c\u3057\u305f\u3068\u3053\u308d\u3002\u8981\u6c42\u306f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u3066\u3044\u308b<\/figcaption><\/figure>\n<p>\u898b\u305f\u3068\u3053\u308d\u3001\u901a\u4fe1\u306f\u671f\u5f85\u3059\u308b\u3068\u304a\u308a\u5931\u6557\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u305d\u3053\u3067\u554f\u984c\u306b\u306a\u308b\u306e\u304c\u300c\u8ab0\u306b\u5bfe\u3057\u3066Ping\u3092\u5b9f\u884c\u3057\u305f\u7d50\u679c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u305f\u306e\u304b\u300d\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u56f3\u304b\u3089\u306f\u3001\u300c23.208.232.94\u306bICMP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u305f\u7d50\u679c\u5931\u6557\u3057\u305f\u300d\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3067\u306f\u306a\u305c\u300123.208.232.94\u306bICMP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u3088\u304f\u3042\u308b\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067Ping\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3001\u3069\u306e\u3088\u3046\u306a\u901a\u4fe1\u304c\u767a\u751f\u3059\u308b\u306e\u304b\u3092\u4e0b\u306e\u56f32\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_310139\" aria-describedby=\"caption-attachment-310139\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/2-ping.png\"><div style=\"max-width:100%\" data-width=\"900\"><span class=\"ar-custom\" style=\"padding-bottom:50.33%;\"><img loading=\"lazy\" decoding=\"async\"  class=\"wp-image-310139 lozad\"  data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/2-ping.png\" alt=\"\u56f3 2. Ping\u306e\u5b9f\u884c\u306b\u3088\u308a\u767a\u751f\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d5\u30ed\u30fc\" width=\"900\" height=\"453\" \/><\/span><\/div><\/a><figcaption id=\"caption-attachment-310139\" class=\"wp-caption-text\">\u56f3 2. Ping\u306e\u5b9f\u884c\u306b\u3088\u308a\u767a\u751f\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d5\u30ed\u30fc<\/figcaption><\/figure>\n<p>\u5b9f\u969b\u306e\u901a\u4fe1\u3067\u767a\u751f\u3059\u308b\u3053\u3068\u306b\u306a\u308bARP\u3084\u8907\u6570\u306e\u6a29\u5a01\u30b5\u30fc\u30d0\u30fc\u306e\u53c2\u7167\u306a\u3069\u306e\u901a\u4fe1\u306f\u3053\u3053\u3067\u306f\u7701\u7565\u3057\u3066\u3044\u307e\u3059\u304c\u3001Ping\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u307e\u3067\u306b\u306f\u304a\u304a\u3088\u305d\u3053\u306e\u3088\u3046\u306a\u901a\u4fe1\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3059\u3067\u306b\u304a\u6c17\u3065\u304d\u304b\u3068\u601d\u3044\u307e\u3059\u304c\u3001Ping\u306f\u671f\u5f85\u3069\u304a\u308a\u5931\u6557\u3057\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u305d\u306e\u524d\u306bDNS\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3088\u308b\u5916\u90e8\u3068\u306e\u901a\u4fe1\u3068\u540d\u524d\u89e3\u6c7a\u304c\u6210\u7acb\u3057\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306fPing\u3067\u8a66\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5f8c\u306b\u3064\u3065\u304f\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u4f55\u3067\u3042\u3063\u3066\u3082\u3001FQDN\u3067\u30a2\u30af\u30bb\u30b9\u3092\u8a66\u307f\u308c\u3070DNS\u306b\u3088\u308b\u540d\u524d\u89e3\u6c7a\u306e\u901a\u4fe1\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30ad\u30b7\u304c\u4ecb\u5728\u3057\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u76f4\u63a5\u5916\u90e8\u306b\u901a\u4fe1\u3067\u304d\u306a\u304f\u3066\u3082\u3053\u306e\u72b6\u6cc1\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u5834\u5408\u306f\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u304c\u540d\u524d\u89e3\u6c7a\u3092\u8a66\u307f\u308b\u306e\u3067\u3001\u9593\u63a5\u7684\u3067\u3042\u3063\u3066\u3082\u7d44\u7e54\u5916\u306bDNS\u30af\u30a8\u30ea\u306f\u9001\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-310124-_14vczzc3z60l\"><\/a>\u540d\u524d\u89e3\u6c7a\u304c\u6210\u7acb\u3059\u308b\u3068\u3069\u3093\u306a\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304b<\/h2>\n<p>DNS\u306e\u30af\u30a8\u30ea\u3084\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u542b\u307e\u308c\u308b\u30db\u30b9\u30c8\u540d\u3084\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u60c5\u5831\u3092\u57cb\u3081\u8fbc\u3080\u3068\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u52d5\u4f5c\u3059\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u3068C2\u30b5\u30fc\u30d0\u30fc\u3068\u304c\u901a\u4fe1\u3067\u304d\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u901a\u4fe1\u624b\u6cd5\u3092\u300cDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u300d\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_310152\" aria-describedby=\"caption-attachment-310152\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/3-httpdns.png\"><div style=\"max-width:100%\" data-width=\"900\"><span class=\"ar-custom\" style=\"padding-bottom:49.78%;\"><img loading=\"lazy\" decoding=\"async\"  class=\"wp-image-310152 lozad\"  data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/3-httpdns.png\" alt=\"\u56f33. HTTP\u30a2\u30af\u30bb\u30b9\u3092\u88c5\u3063\u305fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u3088\u308b\u60c5\u5831\u53d7\u4fe1\u306e\u4f8b\" width=\"900\" height=\"448\" \/><\/span><\/div><\/a><figcaption id=\"caption-attachment-310152\" class=\"wp-caption-text\">\u56f33. HTTP\u30a2\u30af\u30bb\u30b9\u3092\u88c5\u3063\u305fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u3088\u308b\u60c5\u5831\u53d7\u4fe1\u306e\u4f8b<\/figcaption><\/figure>\n<p>\u5148\u307b\u3069\u306e\u56f3\u306b\u5f53\u3066\u306f\u3081\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30d5\u30ed\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u306e\u56f33\u306fHTTP\u30a2\u30af\u30bb\u30b9\u3092\u88c5\u3063\u305fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u3088\u308bC2\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u30b3\u30de\u30f3\u30c9\u53d7\u4fe1\u30d5\u30ed\u30fc\u3092\u793a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u611f\u67d3\u3057\u305f\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u3001\u653b\u6483\u8005\u304c\u7528\u610f\u3057\u305f\u5916\u90e8C2\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3001DNS\u30af\u30a8\u30ea\u30fc\u306b\u6307\u793a\u306e\u8981\u6c42\u3092\u542b\u3081\u3066\u9001\u308b\u3002<\/li>\n<li>C2\u30b5\u30fc\u30d0\u30fc\u304cDNS\u5fdc\u7b54\u306b\u6307\u793a\u3092\u542b\u3081\u3066\u9001\u308b\u3002<\/li>\n<li>\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306fC2\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u6307\u793a\u306b\u5f93\u3044\u3001\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3002<\/li>\n<\/ol>\n<p>\u3053\u306e\u30d5\u30ed\u30fc\u3092\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3084\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u304b\u3089\u898b\u308c\u3070\u3001\u901a\u5e38\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304cWeb\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u3057\u304b\u898b\u3048\u307e\u305b\u3093\u3002<\/p>\n<figure id=\"attachment_310165\" aria-describedby=\"caption-attachment-310165\" style=\"width: 899px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/4-httpdns.png\"><div style=\"max-width:100%\" data-width=\"899\"><span class=\"ar-custom\" style=\"padding-bottom:49.39%;\"><img loading=\"lazy\" decoding=\"async\"  class=\"wp-image-310165 lozad\"  data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/4-httpdns.png\" alt=\"\u56f34. HTTP\u30a2\u30af\u30bb\u30b9\u3092\u88c5\u3063\u305fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u3088\u308b\u60c5\u5831\u9001\u4fe1\u306e\u4f8b\" width=\"899\" height=\"444\" \/><\/span><\/div><\/a><figcaption id=\"caption-attachment-310165\" class=\"wp-caption-text\">\u56f34. HTTP\u30a2\u30af\u30bb\u30b9\u3092\u88c5\u3063\u305fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u3088\u308b\u60c5\u5831\u9001\u4fe1\u306e\u4f8b<\/figcaption><\/figure>\n<p>\u3082\u3046\u3072\u3068\u3064\u306e\u30b7\u30ca\u30ea\u30aa\u306f\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3089C2\u30b5\u30fc\u30d0\u30fc\u306b\u60c5\u5831\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u30d5\u30ed\u30fc\u3067\u3059\u3002<\/p>\n<p>DNS\u30af\u30a8\u30ea\u306e\u30b5\u30a4\u30ba\u306f\u5c0f\u3055\u3044\u306e\u3067\u3001\u5185\u90e8\u60c5\u5831\u3092\u6301\u3061\u51fa\u3059\u5834\u5408\u306f\u6642\u9593\u3092\u7a7a\u3051\u3066\u8907\u6570\u306b\u5206\u5272\u3057\u3066\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3088\u3046\u3067\u3059\u3002\u307e\u305f\u3001\u653b\u6483\u8005\u304b\u3089\u3059\u308c\u3070\u3001\u30af\u30a8\u30ea\u9001\u4fe1\u306e\u6642\u70b9\u3067\u76ee\u7684\u306f\u9054\u6210\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3042\u3048\u3066\u305d\u308c\u3089\u3057\u3044DNS\u5fdc\u7b54\u3092\u8fd4\u3059\u3053\u3068\u3067\u3001\u5fdc\u7b54\u306e\u306a\u3044\u30af\u30a8\u30ea\u304c\u30ed\u30b0\u306e\u306a\u304b\u3067\u76ee\u7acb\u305f\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u901a\u4fe1\u304c\u5384\u4ecb\u306a\u306e\u306f\u3001\u5f8c\u306b\u7d9a\u304f\u30d7\u30ed\u30c8\u30b3\u30eb\u304cHTTP\u3067\u3082\u3001\u305d\u306e\u624b\u524d\u3067\u767a\u751f\u3059\u308bDNS\u30af\u30a8\u30ea\u3092\u60c5\u5831\u306e\u9001\u53d7\u4fe1\u306b\u4f7f\u3046\u306e\u3067\u3001\u30d7\u30ed\u30ad\u30b7\u3092\u542b\u3080Web\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u5c0e\u5165\u3057\u3066\u3044\u3066\u3082\u898b\u9003\u3055\u308c\u3084\u3059\u3044\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<br \/>\n\u4e00\u822c\u306b\u3001Web\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30b5\u30fc\u30d3\u30b9\u304c\u9632\u5fa1\u5bfe\u8c61\u306b\u542b\u3080\u306e\u306fHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3042\u3063\u3066\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u7570\u306a\u308bDNS\u306f\u9632\u5fa1\u5bfe\u8c61\u5916\u3067\u3059\u3002\u3053\u306e\u90e8\u5206\u306f\u5f0a\u793e\u306e\u88fd\u54c1\u3067\u3082\u540c\u69d8\u3067\u3001URL Filtering\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306e\u691c\u67fb\u5bfe\u8c61\u306fHTTP\/HTTPS\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u307f\u3067\u3059\u3002<\/p>\n<h2><a id=\"post-310124-_pm6xd9y1zlaf\"><\/a>DNS Security\u3067\u629c\u3051\u7a74\u3092\u585e\u3050<\/h2>\n<p>\u653b\u6483\u8005\u304b\u3089\u898b\u308c\u3070\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5ea6\u304c\u9ad8\u3044\u3068\u3053\u308d\u3092\u6562\u3048\u3066\u72d9\u3046\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f7c\u3089\u306f\u8907\u6570\u306e\u653b\u6483\u624b\u6cd5\u304b\u3089\u6700\u3082\u52b9\u7387\u7684\u306b\u4f7f\u3048\u308b\u7d4c\u8def\u3067\u901a\u4fe1\u3092\u8a66\u307f\u307e\u3059\u3002\u3069\u306e\u3088\u3046\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u30a2\u30af\u30bb\u30b9\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u305d\u306e\u524d\u306b\u540d\u524d\u89e3\u6c7a\u304c\u884c\u308f\u308c\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u3001\u5e38\u6642\u901a\u4fe1\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u306e\u3067\u6b63\u5e38\u306a\u901a\u4fe1\u306b\u7d1b\u308c\u8fbc\u307e\u305b\u3084\u3059\u304f\u3001\u72ec\u81ea\u30c4\u30fc\u30eb\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082OS\u6a19\u6e96\u3067\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001DNS\u306b\u7279\u5316\u3057\u305f\u5bfe\u7b56\u304c\u306a\u3044\u304b\u304e\u308a\u3001\u6b63\u898f\u306e\u901a\u4fe1\u304b\u4e0d\u6b63\u306a\u901a\u4fe1\u304b\u306f\u6975\u3081\u3066\u898b\u5206\u3051\u306b\u304f\u3044\u306e\u3067\u3059\u3002<\/p>\n<p>\u5f0a\u793e\u306e\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3001DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3092\u542b\u3080DNS\u95a2\u9023\u653b\u6483\u304b\u3089\u7d44\u7e54\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u3001DNS Security\u3068\u3044\u3046DNS\u306b\u7279\u5316\u3057\u305f\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_310178\" aria-describedby=\"caption-attachment-310178\" style=\"width: 899px\" class=\"wp-caption aligncenter\"><div style=\"max-width:100%\" data-width=\"899\"><span class=\"ar-custom\" style=\"padding-bottom:43.16%;\"><img loading=\"lazy\" decoding=\"async\"  class=\"wp-image-310178 lozad\"  data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2023\/12\/5-dns-security.png\" alt=\"\u56f35. DNS Security \u306e\u6982\u8981\" width=\"899\" height=\"388\" \/><\/span><\/div><figcaption id=\"caption-attachment-310178\" class=\"wp-caption-text\">\u56f35. DNS Security \u306e\u6982\u8981<\/figcaption><\/figure>\n<p>\u5f0a\u793e\u306eSASE\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3042\u308bPrisma SASE\u306b\u306f\u4e00\u90e8\u306e\u30a8\u30c7\u30a3\u30b7\u30e7\u30f3\u3092\u9664\u304d<a href=\"#post-310124-_3t1p7p5g6ny6\"><sup>[2]<\/sup><\/a>\u3001\u6a19\u6e96\u3067\u3053\u306eDNS Security\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u56f35\u306fDNS Security\u306e\u6982\u8981\u56f3\u3067\u3059\u3002\u3053\u3053\u306b\u793a\u3057\u305f\u3068\u304a\u308a\u3001\u3053\u308c\u306f\u5358\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u591a\u6570\u60aa\u6027\u30c9\u30e1\u30a4\u30f3\u3092\u542b\u3081\u3066\u304a\u304d\u3001\u30af\u30a8\u30ea\u3068\u7a81\u304d\u5408\u308f\u305b\u3059\u308b\u3060\u3051\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6628\u4eca\u306f\u975e\u5e38\u306b\u7c21\u5358\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u53d6\u5f97\u3067\u304d\u308b\u306e\u3067\u3001\u65e2\u77e5\u306e\u60aa\u6027\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5316\u3057\u305f\u3060\u3051\u3067\u306f\u3001\u3042\u3063\u3068\u3044\u3046\u9593\u306b\u53e4\u304f\u306a\u308a\u653b\u6483\u306b\u592a\u5200\u6253\u3061\u3067\u304d\u307e\u305b\u3093\u3002DNS Security\u306e\u5834\u5408\u3001\u672a\u77e5\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3067\u3042\u3063\u3066\u3082\u6a5f\u68b0\u5b66\u7fd2\u3067\u4e88\u6e2c\u5224\u5b9a\u3059\u308b\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-310124-_1bi70yns6889\"><\/a>\u304a\u308f\u308a\u306b<\/h2>\n<p>\u904e\u53bb\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30fc\u30d0\u30fc\u306a\u3044\u3057\u30b3\u30f3\u30c6\u30f3\u30c4\u30d5\u30a3\u30eb\u30bf\u3068\u3057\u3066\u30d7\u30ed\u30ad\u30b7\u3092\u5c0e\u5165\u3057\u3001\u305d\u308c\u304c\u305d\u306e\u307e\u307eURL\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u5bfe\u7b56\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u7d44\u7e54\u306f\u591a\u3044\u3067\u3057\u3087\u3046\u3002\u305d\u306e\u5834\u5408\u306f\u305c\u3072\u3001DNS\u5bfe\u7b56\u306b\u629c\u3051\u7a74\u304c\u306a\u3044\u304b\u304a\u624b\u5143\u306e\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u3092\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3053\u3067DNS\u306b\u5bfe\u3059\u308b\u5bfe\u7b56\u304c\u5fc5\u8981\u3060\u3068\u5224\u65ad\u3055\u308c\u308b\u3088\u3046\u3067\u3042\u308c\u3070\u3001\u305c\u3072\u5f0a\u793e\u55b6\u696d\u62c5\u5f53\u7a93\u53e3 <a href=\"mailto:infojapan@paloaltonetworks.com\">infojapan@paloaltonetworks.com<\/a> \u307e\u3067\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2><a id=\"post-310124-_3t1p7p5g6ny6\"><\/a>\u53c2\u8003\u6587\u732e<\/h2>\n<ol>\n<li>\u72ec\u7acb\u884c\u653f\u6cd5\u4eba\u60c5\u5831\u51e6\u7406\u63a8\u9032\u6a5f\u69cb. \"\u300c\u9ad8\u5ea6\u6a19\u7684\u578b\u653b\u6483\u300d\u5bfe\u7b56\u306b\u5411\u3051\u305f\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u30ac\u30a4\u30c9\". 2014. <a href=\"https:\/\/warp.ndl.go.jp\/info:ndljp\/pid\/12446699\/www.ipa.go.jp\/files\/000046236.pdf\" rel=\"nofollow,noopener\" >https:\/\/warp.ndl.go.jp\/info:ndljp\/pid\/12446699\/www.ipa.go.jp\/files\/000046236.pdf<\/a>. (\u53c2\u7167 2023-12-05).<\/li>\n<li>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9. \"Prisma Access \u306e\u30e9\u30a4\u30bb\u30f3\u30b9 \u30ac\u30a4\u30c9\". 2022. <a href=\"https:\/\/www.paloaltonetworks.jp\/resources\/datasheets\/prisma-access-licensing-guide\" rel=\"nofollow,noopener\" >https:\/\/www.paloaltonetworks.jp\/resources\/datasheets\/prisma-access-licensing-guide<\/a> (\u53c2\u7167 2023-12-06)<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b SaaS\u3084PaaS\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30d1\u30d6\u30ea\u30c3\u30af\u30af\u30e9\u30a6\u30c9\u306e\u5229\u6d3b\u7528\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u305d\u3053\u306b\u30b3\u30ed\u30ca\u798d\u304c\u91cd\u306a\u3063\u3066\u3001\u7d14\u7c8b\u306a\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u306f\u4ee5\u524d\u3088\u308a\u306f\u6e1b\u3063\u3066\u304d\u305f\u3088\u3046\u306b\u601d\u3044\u307e\u3059\u3002 \u305d\u306e\u4e00\u65b9\u3067\u3001\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u74b0\u5883\u306e\u5229\u7528\u3082\u7d9a\u3044\u3066\u3044\u307e\u3059\u3057\u3001IPA\u304c\u9ad8\u5ea6\u6a19\u7684\u578b\u653b\u6483\u306b\u5411\u3051\u305f\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u30ac\u30a4\u30c9\u3067\u305d\u306e\u5229\u7528\u3092\u63a8\u5968[1]\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u3001\u3053\u3046\u3057\u305f\u30d7\u30ed\u30ad\u30b7\u74b0\u5883\u304c\u305d\u3046\u7c21\u5358\u306b\u306a\u304f\u306a\u308b\u3053\u3068\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u3002 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