{"id":3636,"date":"2022-02-07T16:29:43","date_gmt":"2022-02-07T07:29:43","guid":{"rendered":"https:\/\/media.samurai-net.co.jp\/?p=3636"},"modified":"2023-01-28T01:34:49","modified_gmt":"2023-01-27T16:34:49","slug":"firewall-structure-type-necessity","status":"publish","type":"post","link":"https:\/\/www.samurai-net.co.jp\/media\/firewall-structure-type-necessity\/","title":{"rendered":"\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u4ed5\u7d44\u307f\u3068\u306f\uff1f\u7a2e\u985e\u3084\u5fc5\u8981\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff01"},"content":{"rendered":"\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u30b3\u30f3\u30c6\u30f3\u30c4<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u306f\uff1f\u5916\u90e8\u304b\u3089\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u9632\u706b\u58c1\u3067\u3059<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u5fc5\u8981\u6027\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\uff01<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u7a2e\u985e\u3092\u3054\u7d39\u4ecb<\/a><\/li><li><a href=\"#i-4\"><span class=\"toc_number toc_depth_1\">4<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3069\u3093\u306a\u6a5f\u80fd\u304c\u3042\u308b\uff1f\u4ed5\u7d44\u307f\u3092\u89e3\u8aac<\/a><\/li><li><a href=\"#i-5\"><span class=\"toc_number toc_depth_1\">5<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3069\u3093\u306a\u6642\u306b\u7121\u52b9\u306b\u3059\u308b\uff1f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u78ba\u8a8d\u65b9\u6cd5\u3084\u7121\u52b9\u306b\u3059\u308b\u3084\u308a\u65b9\u3082\u30c1\u30a7\u30c3\u30af<\/a><\/li><li><a href=\"#4\"><span class=\"toc_number toc_depth_1\">6<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u304a\u3059\u3059\u3081\u30bd\u30d5\u30c8\u30a6\u30a7\u30a24\u9078\uff01<\/a><\/li><li><a href=\"#i-6\"><span class=\"toc_number toc_depth_1\">7<\/span> \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u5f37\u3044\u30b7\u30b9\u30c6\u30e0\u4f1a\u793e\u3068\u306f<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u306f\uff1f\u5916\u90e8\u304b\u3089\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u9632\u706b\u58c1\u3067\u3059<\/span><\/h2>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u300c\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u300d\u306f\u3001\u5916\u90e8\u304b\u3089\u306e\u4e0d\u6b63\u306a\u4fb5\u5165\u3084\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u60c5\u5831\u304c\u6f0f\u6d29\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u76e3\u8996\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3084\u6a5f\u5668\u306e\u3053\u3068\u3067\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<p>\u5916\u90e8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u5185\u90e8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7d50\u3076\u90e8\u5206\u306b\u5c0e\u5165\u3055\u308c\u3001\u9069\u7528\u3055\u308c\u305f\u30eb\u30fc\u30eb\u306b\u5f93\u3063\u3066\u901a\u4fe1\u3092\u884c\u3044\u3001\u4e0d\u6b63\u306a\u52d5\u304d\u304c\u3042\u3063\u305f\u6642\u306f\u305d\u308c\u3092\u906e\u65ad\u3059\u308b\u50cd\u304d\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u81ea\u793e\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3084\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u304b\u3089\u5b88\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u706b\u707d\u306e\u3068\u304d\u306e\u300c\u9632\u706b\u58c1\u300d\u306b\u306a\u305e\u3089\u3048\u3066\u305d\u3046\u547c\u3070\u308c\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<p>web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u7279\u5316\u3057\u305f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3092\u9632\u5fa1\u3059\u308b\u300cWAF\uff08\u308f\u3075\uff1aWeb Application Firewall\uff09\u300d\u3084\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u76e3\u8996\u3057\u3066\u4fb5\u5165\u3092\u691c\u77e5\u3059\u308b\u300cIDS\uff08\u3042\u3044\u3067\u3043\u30fc\u3048\u3059\uff1a Intrusion Detection System\uff09\u300d\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u691c\u77e5\u3059\u308b\u3068\u81ea\u52d5\u7684\u306b\u901a\u4fe1\u3092\u906e\u65ad\u3059\u308b\u300cIPS\uff08\u3042\u3044\u3074\u30fc\u3048\u3059\uff1aIntrusion Prevention System\uff09\u300d\u306a\u3069\u3068\u5171\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u30b5\u30fc\u30d0\u306e\u30b5\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b88\u308b\u305f\u3081\u306b\u5fc5\u8981\u3068\u3055\u308c\u3066\u304a\u308a\u3001\u4f75\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u5fc5\u8981\u6027\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\uff01<\/span><\/h2>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u300c\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3063\u3066\u672c\u5f53\u306b\u5fc5\u8981\u306a\u306e\uff1f\u300d\u3068\u601d\u3046\u65b9\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5185\u90e8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5916\u90e8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u3053\u3068\u304c\u5f53\u305f\u308a\u524d\u3068\u306a\u3063\u305f\u73fe\u5728\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4fb5\u5165\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u3001\u30c7\u30fc\u30bf\u3092\u76d7\u307e\u308c\u305f\u308a\u6539\u3056\u3093\u3084\u653b\u6483\u304c\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/span><\/span><\/p>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u6700\u5927\u306e\u5229\u70b9\u3067\u3042\u308b\u516c\u5171\u6027\u306f\u3001\u9006\u306b\u6700\u5927\u306e\u8105\u5a01\u3068\u3082\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br>\u305d\u306e\u305f\u3081\u3001\u5916\u90e8\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304b\u3089\u5fc5\u8981\u306a\u3082\u306e\u3060\u3051\u3092\u8a31\u53ef\u3057\u3001\u6a5f\u5bc6\u3092\u5b88\u308b\u4ed5\u7d44\u307f\u304c\u5fc5\u8981\u3068\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3082\u3061\u308d\u3093\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u7f6e\u3057\u305f\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u305d\u308c\u304c\u5b8c\u5168\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br>\u3057\u304b\u3057\u3001\u5916\u90e8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306e\u63a5\u7d9a\u306b\u306f\u5e38\u306b\u30ea\u30b9\u30af\u304c\u4f34\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u5c0e\u5165\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u3001\u5916\u90e8\u304b\u3089\u306e\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3092\u3059\u3079\u3066\u8a31\u53ef\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u4e00\u3064\u3068\u3057\u3066\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u91cd\u8981\u306a\u5f79\u5272\u3092\u3082\u3063\u3066\u304a\u308a\u3001\u5c0e\u5165\u306f\u5fc5\u9808\u3068\u3044\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-3\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u7a2e\u985e\u3092\u3054\u7d39\u4ecb<\/span><\/h2>\n\n\n\n<p>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u306f\u3001\u901a\u4fe1\u306e\u89e3\u6790\u3068\u5236\u5fa1\u306e\u65b9\u6cd5\u306b\u3088\u308a\u3001\u5927\u304d\u304f\u5206\u3051\u30663\u3064\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30b1\u30c3\u30c8\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/h3>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u901a\u4fe1\u3092\u30d1\u30b1\u30c3\u30c8\uff08\u7d30\u5206\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306e\u304b\u305f\u307e\u308a\uff09\u5358\u4f4d\u3067\u76e3\u8996\u3057\u307e\u3059\u3002<br>\u901a\u4fe1\u3092\u8a31\u53ef\u3059\u308b\u9001\u4fe1\u5143\u60c5\u5831\uff08IP\u30a2\u30c9\u30ec\u30b9\u30fb\u30dd\u30fc\u30c8\uff09\u3084\u5b9b\u5148\u60c5\u5831\u3092\u3001\u30d1\u30b1\u30c3\u30c8\u3054\u3068\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u30eb\u30fc\u30eb\u3068\u3057\u3066\u8a2d\u5b9a\u3067\u304d\u3001\u30eb\u30fc\u30eb\u306b\u53cd\u3057\u305f\u901a\u4fe1\u3092\u906e\u65ad\u3057\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<p>\u67d4\u8edf\u306a\u8a2d\u5b9a\u304c\u53ef\u80fd\u3067\u5f37\u529b\u306a\u5236\u5fa1\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u305d\u306e\u53cd\u9762\u3067\u8a2d\u5b9a\u304c\u96e3\u3057\u304f\u306a\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30db\u30fc\u30eb\uff08\u8a2d\u5b9a\u30df\u30b9\u306b\u3088\u308b\u629c\u3051\u7a74\uff09\u304c\u751f\u3058\u3084\u3059\u3044\u3068\u3044\u3046\u6b20\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\uff08\u30c7\u30fc\u30bf\u306e\u8a18\u61b6\u9818\u57df\u306b\u60f3\u5b9a\u4ee5\u4e0a\u306e\u9577\u3055\u306e\u30c7\u30fc\u30bf\u304c\u5165\u529b\u3055\u308c\u3066\u3057\u307e\u3046\u73fe\u8c61\u3002\u30d1\u30b1\u30c3\u30c8\u3092\u898b\u305f\u3060\u3051\u3067\u306f\u653b\u6483\u3092\u5224\u5225\u3067\u304d\u306a\u3044\uff09\u306b\u3088\u308b\u653b\u6483\u3084\u3001\u30a6\u30a4\u30eb\u30b9\u3064\u304d\u306eE\u30e1\u30fc\u30eb\u306a\u3069\u306e\u653b\u6483\u3092\u9632\u3050\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<br>\u305d\u306e\u305f\u3081\u3001\u4ed6\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b5\u30fc\u30ad\u30c3\u30c8\u30ec\u30d9\u30eb\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/h3>\n\n\n\n<p>\u30d1\u30b1\u30c3\u30c8\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u9032\u5316\u7248\u3067\u3059\u3002<br><span class=\"important-under\"><span class=\"important-bold\">\u5f93\u6765\u306e\u6a5f\u80fd\u306b\u30dd\u30fc\u30c8\u5236\u5fa1\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u3001\u30b5\u30fc\u30d0\u3054\u3068\u306b\u4efb\u610f\u306e\u30dd\u30fc\u30c8\u3092\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u306e\u3067\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30b7\u30b9\u30c6\u30e0\u3092\u5236\u5fa1\u3067\u304d\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<p>\u8a2d\u5b9a\u3084\u7ba1\u7406\u304c\u7c21\u5358\u306b\u3067\u304d\u3001\u30d1\u30b1\u30c3\u30c8\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3067\u306f\u9632\u3052\u306a\u3044\u3088\u3046\u306a\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u507d\u88c5\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/h3>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">HTTP\u30fbFTP\u30fbSMTP\u306a\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30c8\u30b3\u30eb\uff08\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3084\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b\u500b\u5225\u306b\u5236\u5b9a\u3055\u308c\u308b\u901a\u4fe1\u898f\u7d04\uff09\u3054\u3068\u306b\u76e3\u8996\u3092\u884c\u3044\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<p>\u30d1\u30b1\u30c3\u30c8\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3088\u308a\u3082\u4ed5\u7d44\u307f\u304c\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u8a2d\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u307e\u3059\u3002<br>\u3088\u308a\u8a73\u7d30\u306b\u901a\u4fe1\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u306a\u308a\u3059\u307e\u3057\u578b\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u9632\u5fa1\u306b\u5f37\u3044\u3068\u3044\u3046\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4e00\u65b9\u3067\u30c7\u30fc\u30bf\u306e\u4e2d\u8eab\u307e\u3067\u89e3\u6790\u3059\u308b\u306e\u3067\u901a\u4fe1\u306e\u51e6\u7406\u304c\u9045\u304f\u3001\u69cb\u7bc9\u3059\u308b\u307e\u3067\u306b\u9ad8\u3044\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b\u3068\u3044\u3046\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-4\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3069\u3093\u306a\u6a5f\u80fd\u304c\u3042\u308b\uff1f\u4ed5\u7d44\u307f\u3092\u89e3\u8aac<\/span><\/h2>\n\n\n\n<p>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u6a5f\u80fd\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u4fe1\u306e\u8a31\u53ef\u3068\u906e\u65ad<\/h3>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u30c7\u30fc\u30bf\u306e\u767a\u4fe1\u5143\u3084\u9001\u4fe1\u5148\u60c5\u5831\u3092\u3082\u3068\u306b\u3001\u8a2d\u5b9a\u3057\u305f\u30eb\u30fc\u30eb\u306b\u9069\u5408\u3059\u308b\u901a\u4fe1\u306e\u307f\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3057\u3001\u4e0d\u6b63\u306a\u901a\u4fe1\u306f\u906e\u65ad\u3057\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5fdc\u3058\u305f\u30dd\u30fc\u30c8\u306e\u5236\u5fa1<\/h3>\n\n\n\n<p>\u30dd\u30fc\u30c8\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u30b5\u30fc\u30d0\u304c\u901a\u4fe1\u3092\u884c\u3046\u3068\u304d\u306e\u51fa\u5165\u308a\u53e3\u3067\u3059\u3002<br><span class=\"important-under\"><span class=\"important-bold\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3054\u3068\u306b\u3069\u306e\u30dd\u30fc\u30c8\u3092\u5229\u7528\u3059\u308b\u304b\u6c7a\u3081\u3001\u4f7f\u7528\u3057\u306a\u3044\u30dd\u30fc\u30c8\u306f\u9589\u3058\u308b\u3053\u3068\u3067\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u304b\u3089\u9632\u5fa1\u3057\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">NAT\uff08\u30a2\u30c9\u30ec\u30b9\u5909\u63db\u6a5f\u80fd\uff09<\/h3>\n\n\n\n<p>NAT\uff08\u306a\u3063\u3068\uff1aNetwork Address Translation\uff09\u306fIP\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u63db\u3059\u308b\u3057\u304f\u307f\u3067\u3059\u3002<br><span class=\"important-under\"><span class=\"important-bold\">IP\u30a2\u30c9\u30ec\u30b9\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u969b\u306b\u4ed8\u4e0e\u3055\u308c\u308b\u56fa\u6709\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3001\u793e\u5185\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u5916\u90e8\u304b\u3089\u8b58\u5225\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u76e3\u8996\u3068\u7ba1\u7406<\/h3>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3001\u901a\u4fe1\u306e\u30ed\u30b0\uff08\u5c65\u6b74\uff09\u3092\u8a18\u9332\u3057\u3001\u8ffd\u8de1\u3059\u308b\u6a5f\u80fd\u3092\u6301\u3061\u307e\u3059\u3002<br>\u3053\u306e\u30ed\u30b0\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u8ffd\u8de1\u3084\u5229\u7528\u72b6\u6cc1\u3092\u8ffd\u3046\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3092\u672a\u7136\u306b\u9632\u3044\u3060\u308a\u3001\u3044\u3061\u65e9\u304f\u691c\u77e5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-5\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3069\u3093\u306a\u6642\u306b\u7121\u52b9\u306b\u3059\u308b\uff1f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u78ba\u8a8d\u65b9\u6cd5\u3084\u7121\u52b9\u306b\u3059\u308b\u3084\u308a\u65b9\u3082\u30c1\u30a7\u30c3\u30af<\/span><\/h2>\n\n\n\n<p>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u5c02\u7528\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u8a2d\u7f6e\u3059\u308b\u307b\u304b\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u308a\u3001\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u5c0e\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6700\u8fd1\u3067\u306f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u304c\u6700\u521d\u304b\u3089\u642d\u8f09\u3055\u308c\u3066\u3044\u308b\u30d1\u30bd\u30b3\u30f3\u304c\u591a\u304f\u306a\u308a\u307e\u3057\u305f\u3002<br>\u305f\u3060\u3057\u3001\u30d1\u30bd\u30b3\u30f3\u3078\u306e\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u52b9\u679c\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3092\u5b88\u308b\u305f\u3081\u306b\u306f\u3084\u306f\u308a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u5c0e\u5165\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3042\u3089\u305f\u306b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u30d1\u30bd\u30b3\u30f3\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u969b\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u304c\u4e8c\u91cd\u306b\u8a2d\u5b9a\u3055\u308c\u308b\u3068\u5e72\u6e09\u3057\u3066\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30ec\u30d9\u30eb\u304c\u4f4e\u4e0b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br>\u305d\u306e\u305f\u3081\u3001\u30d1\u30bd\u30b3\u30f3\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u6a5f\u80fd\u3092\u30aa\u30d5\u306b\u3059\u308b\u3088\u3046\u6307\u793a\u3055\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<br><span class=\"important-under\"><span class=\"important-bold\">\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u30d1\u30bd\u30b3\u30f3\u5074\u3092\u7121\u52b9\u306b\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/span><\/p>\n\n\n\n<p>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u78ba\u8a8d\u3001\u8a2d\u5b9a\u65b9\u6cd5\u306fOS\u3054\u3068\u306b\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u300cWindows10\u300d\u3067\u3042\u308c\u3070\u3001\u6700\u521d\u306b\u300c\u30b9\u30bf\u30fc\u30c8\u300d\u304b\u3089\u300cWindows\u30b7\u30b9\u30c6\u30e0 \u30c4\u30fc\u30eb\u300d\u3092\u9078\u629e\u3057\u3066\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u3092\u8868\u793a\u3057\u307e\u3059\u3002<br>\u6b21\u306b\u300c\u30b7\u30b9\u30c6\u30e0\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u300d\u3092\u9078\u629e\u3057\u305f\u5f8c\u3001\u300c\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u72b6\u614b\u306e\u78ba\u8a8d\u300d\u3092\u9078\u629e\u3059\u308b\u3068\u8a2d\u5b9a\u306e\u78ba\u8a8d\u304c\u3067\u304d\u307e\u3059\u3002<br>\u3053\u3053\u3067\u5de6\u30e1\u30cb\u30e5\u30fc\u306e\u300cWindows \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u6709\u52b9\u5316\u307e\u305f\u306f\u7121\u52b9\u5316\u300d\u3067\u6709\u52b9\uff0f\u7121\u52b9\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u7f6e\u3059\u308b\u5834\u5408\u306f\u76f8\u4e92\u5e72\u6e09\u306f\u304a\u304d\u306a\u3044\u306e\u3067\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u6a5f\u80fd\u306f\u6709\u52b9\u306b\u3057\u3066\u304a\u304f\u306e\u304c\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"4\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u304a\u3059\u3059\u3081\u30bd\u30d5\u30c8\u30a6\u30a7\u30a24\u9078\uff01<\/span><\/h2>\n\n\n\n<p>\u304a\u3059\u3059\u3081\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Untangle<\/h3>\n\n\n\n<p>\u300cUntangle\u300d\u306f\u30a6\u30a7\u30a2\u30dd\u30fc\u30bf\u30eb\u682a\u5f0f\u4f1a\u793e\u306eUTM\uff08Unified Threat Management\u30fb\u7d71\u5408\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff09\u3067\u3059\u3002<br><span class=\"important-under\"><span class=\"important-bold\">\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u30ed\u30b0\u7ba1\u7406\u304c\u3067\u304d\u3001\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u5206\u6790\u306b\u3088\u308a\u672a\u77e5\u306e\u8105\u5a01\u304b\u3089\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002<\/span><\/span><br>\u307e\u305f\u3001\u30ea\u30e2\u30fc\u30c8\u3067\u5c0e\u5165\u6a5f\u5668\u3092\u4e00\u5143\u7ba1\u7406\u3067\u304d\u3001\u65e2\u5b58\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u52a0\u3048\u3066\u5c0e\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br><span class=\"important-under\"><span class=\"important-bold\">\u30b7\u30f3\u30d7\u30eb\u306a\u7ba1\u7406\u753b\u9762\u3067\u6271\u3044\u3084\u3059\u304f\u3001IT\u62c5\u5f53\u8005\u3067\u306a\u304f\u3066\u3082\u7ba1\u7406\u3001\u904b\u7528\u3057\u3084\u3059\u3044\u3068\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d3\u30b8\u30cd\u30b9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff08VSR\uff09<\/h3>\n\n\n\n<p><span class=\"important-under\"><span class=\"important-bold\">\u682a\u5f0f\u4f1a\u793eUSEN ICT 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