{"id":36050,"date":"2026-01-05T01:26:32","date_gmt":"2026-01-05T09:26:32","guid":{"rendered":"https:\/\/www.privateinternetaccess.com\/blog\/?p=36050"},"modified":"2026-03-21T06:10:22","modified_gmt":"2026-03-21T13:10:22","slug":"what-is-port-443","status":"publish","type":"post","link":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/what-is-port-443\/","title":{"rendered":"443\u30dd\u30fc\u30c8\u3068\u306f\uff1f\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u7406\u7531"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u610f\u8b58\u3057\u3066\u3044\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u79c1\u305f\u3061\u306f\u65e5\u5e38\u7684\u306b443\u30dd\u30fc\u30c8\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u9280\u884c\u30a2\u30d7\u30ea\u3092\u4f7f\u3046\u3068\u304d\u3001\u30af\u30ec\u30b8\u30c3\u30c8\u30b9\u30b3\u30a2\u3092\u78ba\u8a8d\u3059\u308b\u3068\u304d\u3001SNS\u3092\u95b2\u89a7\u3059\u308b\u3068\u304d\u306a\u3069\u3001\u3042\u3089\u3086\u308b\u5834\u9762\u3067443\u30dd\u30fc\u30c8\u304c\u6a5f\u80fd\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3092\u6d41\u308c\u308bHTTPS\u901a\u4fe1\u306e\u5927\u90e8\u5206\u3092\u3001\u5b89\u5168\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u5f62\u3067\u51e6\u7406\u3057\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u3067\u306f\u3001443\u30dd\u30fc\u30c8\u304c\u30aa\u30f3\u30e9\u30a4\u30f3\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3001\u305d\u306e\u4ed5\u7d44\u307f\u3001\u305d\u3057\u3066\u30c7\u30d0\u30a4\u30b9\u3067\u306e\u5229\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"wip1\">443\u30dd\u30fc\u30c8\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">443\u30dd\u30fc\u30c8\u306f\u3001HTTP\u306e\u5b89\u5168\u7248\u3067\u3042\u308b<a href=\"https:\/\/www.privateinternetaccess.com\/blog\/why-using-https-is-so-important-for-your-website\/\">HTTPS<\/a>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30dd\u30fc\u30c8\u3067\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u3068Web\u30b5\u30a4\u30c8\u9593\u3067\u9001\u53d7\u4fe1\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002https:\/\/\u3067\u59cb\u307e\u308b\u5b89\u5168\u306aWeb\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f443\u30dd\u30fc\u30c8\u3092\u901a\u3058\u3066\u901a\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u3001\u4e16\u754c\u4e2d\u306e\u5b89\u5168\u306aWeb\u30b5\u30a4\u30c8\u306e<a href=\"https:\/\/transparencyreport.google.com\/https\/overview\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">95%\u4ee5\u4e0a<\/a>\u304c\u3001\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u305f\u3081\u306bHTTPS\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u500b\u4eba\u3092\u7279\u5b9a\u3067\u304d\u308b\u60c5\u5831\uff08PII\uff09\u3092\u6271\u3046Web\u30b5\u30a4\u30c8\u3067\u306f\u3001\u9069\u5207\u306aTLS\u8a2d\u5b9a\u3001\u5f37\u529b\u306a\u6697\u53f7\u5316\u3001\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u7ba1\u7406\u3068\u3044\u3063\u305f\u8981\u7d20\u3068\u3042\u308f\u305b\u3066\u3001HTTPS\u304c\u4e00\u822c\u7684\u306b\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"hp\">443\u30dd\u30fc\u30c8\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">443\u30dd\u30fc\u30c8\u306f\u3001\u4ed6\u306e\u30dd\u30fc\u30c8\u3068\u540c\u69d8\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u30c7\u30d0\u30a4\u30b9\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u63a5\u7d9a\u3059\u308b\u8ad6\u7406\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u3088\u3063\u3066\u3001\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306f\u53d7\u4fe1\u304a\u3088\u3073\u9001\u4fe1\u3055\u308c\u308b\u901a\u4fe1\u3092\u51e6\u7406\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30d0\u30a4\u30b9\u304cHTTPS\u3092\u4f7f\u7528\u3057\u3066Web\u30b5\u30a4\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u306e443\u30dd\u30fc\u30c8\u3078\u306e\u63a5\u7d9a\u304c\u958b\u304b\u308c\u307e\u3059\u3002\u3053\u306e\u30dd\u30fc\u30c8\u3067\u306f\u6697\u53f7\u5316\u901a\u4fe1\u304c\u524d\u63d0\u3068\u306a\u308b\u305f\u3081\u3001\u63a5\u7d9a\u306f\u901a\u5e38\u306eHTTP\u3067\u306f\u306a\u304fTLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304b\u3089\u958b\u59cb\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6697\u53f7\u5316\u304c\u78ba\u7acb\u3055\u308c\u308b\u3068\u3001SSL\u306e\u5f8c\u7d99\u6280\u8853\u3067\u3042\u308bTLS\uff08Transport Layer Security\uff09\u3092\u4f7f\u7528\u3057\u3066\u3001\u901a\u4fe1\u4e2d\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u306a\u304c\u3089HTTPS\u901a\u4fe1\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d41\u308c\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c7\u30d0\u30a4\u30b9\u306f443\u30dd\u30fc\u30c8\u3067\u63a5\u7d9a\u3092\u958b\u304d\u3001\u300cclient hello\u300d\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u901a\u77e5\u306b\u306f\u3001\u5bfe\u5fdc\u3057\u3066\u3044\u308bSSL\/TLS\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u6697\u53f7\uff08<a href=\"https:\/\/helpdesk.privateinternetaccess.com\/hc\/en-us\/articles\/46770040450587-What-Encryption-Can-I-Use\">\u6697\u53f7\u5316\u65b9\u5f0f<\/a>\uff09\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u53cc\u65b9\u3067\u5229\u7528\u53ef\u80fd\u306a\u4e2d\u3067\u6700\u3082\u5b89\u5168\u306aSSL\/TLS\u304a\u3088\u3073\u6697\u53f7\u3092\u9078\u629e\u3057\u3001\u300chello\u300d\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8fd4\u3057\u307e\u3059\u3002\u540c\u6642\u306b\u3001\u516c\u958b\u9375\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3001\u7d44\u7e54\u60c5\u5831\u3001\u8a8d\u8a3c\u5c40\uff08CA\uff09\u306e\u30c7\u30b8\u30bf\u30eb\u7f72\u540d\u3092\u542b\u3080SSL\/TLS\u8a3c\u660e\u66f8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u305d\u306e\u5f8c\u3001\u30c7\u30d0\u30a4\u30b9\u306f\u6b21\u306e\u3088\u3046\u306a\u8907\u6570\u306e\u8981\u7d20\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u8a3c\u660e\u66f8\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\n<ul class=\"wp-block-list\">\n<li>\u8a3c\u660e\u66f8\u304c\u4fe1\u983c\u3055\u308c\u305f\u8a8d\u8a3c\u5c40\uff08CA\uff09\u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u8a3c\u660e\u66f8\u304c\u6709\u52b9\u671f\u9650\u5185\u3067\u3042\u308b\u304b\u3001\u307e\u305f\u306f\u671f\u9650\u5207\u308c\u3067\u306a\u3044\u304b<\/li>\n\n\n\n<li>\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u610f\u56f3\u3057\u305f\u63a5\u7d9a\u5148\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u8a3c\u660e\u66f8\u304c\u5931\u52b9\u3057\u3066\u3044\u306a\u3044\u304b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u3059\u3079\u3066\u306e\u78ba\u8a8d\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u306f\u9375\u3092\u4ea4\u63db\u3057\u3001\u5171\u6709\u306e\u5171\u901a\u9375\u6697\u53f7\u5316\u30ad\u30fc\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30ad\u30fc\u306b\u3088\u3063\u3066\u4ee5\u964d\u306e\u901a\u4fe1\u304c\u6697\u53f7\u5316\u3055\u308c\u3001443\u30dd\u30fc\u30c8\u3092\u901a\u904e\u3059\u308b\u30c7\u30fc\u30bf\u306e\u6a5f\u5bc6\u6027\u3068\u5b8c\u5168\u6027\u304c\u7dad\u6301\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-443\u30dd\u30fc\u30c8\u306f\u4f55\u306b\u4f7f\u308f\u308c\u308b\u306e\u304b\">443\u30dd\u30fc\u30c8\u306f\u4f55\u306b\u4f7f\u308f\u308c\u308b\u306e\u304b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u306a\u305f\u304c\u5229\u7528\u3059\u308bHTTPS\u30b5\u30a4\u30c8\u306e\u5927\u534a\u306f\u3001\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u5185\u5bb9\u306b\u95a2\u4fc2\u306a\u304f\u3001\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u305f\u3081\u306b443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u500b\u4eba\u60c5\u5831\u306e\u3084\u308a\u53d6\u308a\u3092\u884c\u3046Web\u30b5\u30a4\u30c8\u3067\u306f\u3001443\u30dd\u30fc\u30c8\u304c\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<br><br>443\u30dd\u30fc\u30c8\u306e\u4e3b\u306a\u7528\u9014\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53d6\u5f15\u60c5\u5831\u3092\u6697\u53f7\u5316\u3059\u308b\u305f\u3081\u306e\u9280\u884c\u30fb\u91d1\u878d\u30b5\u30fc\u30d3\u30b9\u3002<\/li>\n\n\n\n<li>\u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306eE\u30b3\u30de\u30fc\u30b9\u30b5\u30a4\u30c8\u3002<\/li>\n\n\n\n<li>\u30aa\u30f3\u30e9\u30a4\u30f3\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3084\u9060\u9694\u533b\u7642\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u533b\u7642\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3002<\/li>\n\n\n\n<li><a href=\"https:\/\/www.privateinternetaccess.com\/blog\/what-are-obfuscated-servers\/\">\u6697\u53f7\u5316\u3055\u308c\u305f\u901a\u4fe1\u3092\u901a\u5e38\u306eHTTPS\u901a\u4fe1\u3068\u3057\u3066\u507d\u88c5\u3059\u308b<\/a>\u305f\u3081\u306eVPN\u3002<\/li>\n\n\n\n<li>\u9001\u4fe1\u4e2d\u306e\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u653f\u5e9c\u6a5f\u95a2\u3002<\/li>\n\n\n\n<li><a href=\"https:\/\/aws.amazon.com\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">AWS<\/a>\u3084<a href=\"https:\/\/cloud.google.com\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Google Cloud<\/a>\u306a\u3069\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3078\u306e\u30c7\u30fc\u30bf\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3084API\u547c\u3073\u51fa\u3057\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"p4\">443\u30dd\u30fc\u30c8\u306e\u8106\u5f31\u6027\u3068\u30ea\u30b9\u30af<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">443\u30dd\u30fc\u30c8\u306f\u6a5f\u5bc6\u60c5\u5831\u3092\u8ee2\u9001\u3059\u308b\u3046\u3048\u3067\u975e\u5e38\u306b\u5b89\u5168\u306a\u30dd\u30fc\u30c8\u306e\u4e00\u3064\u3067\u3059\u304c\u3001\u8106\u5f31\u6027\u3084\u30ea\u30b9\u30af\u304c\u5b58\u5728\u3057\u306a\u3044\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u30ea\u30b9\u30af\u306f\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u9732\u51fa\u3067\u3059\u3002HTTPS\u306f\u901a\u4fe1\u5185\u5bb9\u305d\u306e\u3082\u306e\u306f\u6697\u53f7\u5316\u3057\u307e\u3059\u304c\u3001<a href=\"https:\/\/www.privateinternetaccess.com\/ja\/what-is-my-ip\">IP\u30a2\u30c9\u30ec\u30b9<\/a>\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u30b5\u30a4\u30ba\u3001\u304a\u304a\u3088\u305d\u306e\u4f4d\u7f6e\u60c5\u5831\u3001\u63a5\u7d9a\u5148Web\u30b5\u30a4\u30c8\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u3044\u3063\u305f\u30e1\u30bf\u30c7\u30fc\u30bf\u307e\u3067\u306f\u96a0\u305b\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u304c\u6697\u53f7\u5316\u3055\u308c\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306e\u5916\u5074\u306b\u3042\u308b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u304a\u3088\u3073\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306b\u5c5e\u3057\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5c02\u9580\u5bb6\u306e\u30d2\u30f3\u30c8\uff1a<\/strong>Private Internet Access\uff08PIA\uff09\u306e\u3088\u3046\u306a\u4fe1\u983c\u3067\u304d\u308bVPN\u3092\u5229\u7528\u3059\u308b\u3068\u3001<a href=\"https:\/\/www.privateinternetaccess.com\/ja\/hide-my-ip-address\">IP\u30a2\u30c9\u30ec\u30b9\u3092\u30de\u30b9\u30af<\/a>\u3057\u3001DNS\u30af\u30a8\u30ea\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u9732\u51fa\u3092\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u307b\u304b\u306e\u30ea\u30b9\u30af\u306f\u3001\u4eba\u70ba\u7684\u306a\u30df\u30b9\u306b\u8d77\u56e0\u3059\u308b\u3053\u3068\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u30df\u30b9\u3001\u8a3c\u660e\u66f8\u8a2d\u5b9a\u306e\u4e0d\u5099\u3001\u53e4\u3044TLS\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4f7f\u7528\u306a\u3069\u306f\u3001\u6697\u53f7\u5316\u3092\u5f31\u3081\u3001\u56de\u907f\u53ef\u80fd\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hto\">\u30c7\u30d0\u30a4\u30b9\u3067443\u30dd\u30fc\u30c8\u3092\u958b\u304f\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">443\u30dd\u30fc\u30c8\u3092\u958b\u304f\u3053\u3068\u3067\u3001SSL\/TLS\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3059\u308b\u30bb\u30ad\u30e5\u30a2\u306aWeb\u30b5\u30fc\u30d0\u30fc\u3084API\u306a\u3069\u3001\u30c7\u30d0\u30a4\u30b9\u4e0a\u3067\u7a3c\u50cd\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u306b\u53d7\u4fe1\u63a5\u7d9a\u304c\u5c4a\u304f\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u5b89\u5168\u306aWeb\u30b5\u30a4\u30c8\u3084Web\u30a2\u30d7\u30ea\u3001\u307e\u305f\u306f\u6697\u53f7\u5316\u3055\u308c\u305f\u5916\u90e8\u30a2\u30af\u30bb\u30b9\u3092\u5fc5\u8981\u3068\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u30db\u30b9\u30c8\u3057\u3066\u3044\u308b\u5834\u5408\u3001443\u30dd\u30fc\u30c8\u306e\u958b\u653e\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><\/p><div style=\"background-color: #cfe2f3; padding: 1em; border-radius: 1em;\"><p><strong>\u6ce8\u610f<\/strong>\uff1a\u3053\u3053\u3067\u306fWindows 11\u304a\u3088\u3073macOS\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067443\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u306b\u3059\u308b\u4f8b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3054\u3068\u306b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u4ed5\u69d8\u306f\u591a\u5c11\u7570\u306a\u308a\u307e\u3059\u3002\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306a\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066443\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u306b\u3059\u308b\u5834\u5408\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u56fa\u6709\u306e\u624b\u9806\u306b\u3064\u3044\u3066\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30e1\u30fc\u30ab\u30fc\u306e\u6848\u5185\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-windows-11\u3067443\u30dd\u30fc\u30c8\u3092\u958b\u304f\">Windows 11\u3067443\u30dd\u30fc\u30c8\u3092\u958b\u304f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1. <em>Windows Defender Firewall<\/em>\u3092\u958b\u304d\u307e\u3059\u3002\u30af\u30a4\u30c3\u30af\u691c\u7d22\u30d0\u30fc\u306b\u300cfirewall\u300d\u3068\u5165\u529b\u3059\u308b\u3068\u898b\u3064\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14-1024x575.png\" alt=\"\u691c\u7d22\u30e1\u30cb\u30e5\u30fc\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fWindows Defender Firewall\u3002\" class=\"wp-image-34639\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-14.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2. <em>Windows Defender Firewall<\/em>\u306e\u8a2d\u5b9a\u753b\u9762\u3067\u3001\u300c<em>\u8a73\u7d30\u8a2d\u5b9a<\/em>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1-1024x575.png\" alt=\"\u300c\u8a73\u7d30\u8a2d\u5b9a\u300d\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fWindows Defender Firewall\u8a2d\u5b9a\u753b\u9762\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34622\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3. \u8a73\u7d30\u8a2d\u5b9a\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u3001\u5de6\u5074\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<em>\u53d7\u4fe1\u306e\u898f\u5247<\/em>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13-1024x575.png\" alt=\"\u300c\u53d7\u4fe1\u306e\u898f\u5247\u300d\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fWindows Defender Firewall\u306e\u8a73\u7d30\u8a2d\u5b9a\u30bf\u30d6\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34638\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-13.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">4. \u30a6\u30a3\u30f3\u30c9\u30a6\u304c\u958b\u3044\u305f\u3089\u3001\u53f3\u5074\u30e1\u30cb\u30e5\u30fc\u306e\u300c<em>\u64cd\u4f5c<\/em>\u300d\u304b\u3089\u300c<em>\u65b0\u3057\u3044\u898f\u5247<\/em>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12-1024x575.png\" alt=\"\u300c\u65b0\u3057\u3044\u898f\u5247\u300d\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305f\u53d7\u4fe1\u306e\u898f\u5247\u8a2d\u5b9a\u753b\u9762\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34637\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-12.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">5. \u6b21\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u300c<em>\u30dd\u30fc\u30c8<\/em>\u300d\u3092\u9078\u629e\u3057\u3001\u300c<em>\u6b21\u3078<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1024x575.png\" alt=\"\u300c\u30dd\u30fc\u30c8\u300d\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305f\u65b0\u3057\u3044\u53d7\u4fe1\u306e\u898f\u5247\u30a6\u30a3\u30b6\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34621\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">6. \u300c<em>TCP<\/em>\u300d\u3092\u9078\u629e\u3057\u3001\u300c<em>\u7279\u5b9a\u306e\u30ed\u30fc\u30ab\u30eb\u30dd\u30fc\u30c8<\/em>\u300d\u3092\u9078\u3093\u3067\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u300c443\u300d\u3068\u5165\u529b\u3057\u3001\u300c<em>\u6b21\u3078<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2-1024x575.png\" alt=\"\u300cTCP\u300d\u304c\u9078\u629e\u3055\u308c\u3001\u300c\u7279\u5b9a\u306e\u30ed\u30fc\u30ab\u30eb\u30dd\u30fc\u30c8\u300d\u6b04\u306b\u300c443\u300d\u304c\u5165\u529b\u3055\u308c\u305f\u65b0\u3057\u3044\u53d7\u4fe1\u306e\u898f\u5247\u30a6\u30a3\u30b6\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34623\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-2.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">7. \u300c<em>\u63a5\u7d9a\u3092\u8a31\u53ef\u3059\u308b<\/em>\u300d\u3092\u9078\u629e\u3057\u3001\u300c<em>\u6b21\u3078<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11-1024x575.png\" alt=\"\u300c\u63a5\u7d9a\u3092\u8a31\u53ef\u3059\u308b\u300d\u304c\u9078\u629e\u3055\u308c\u305fWindows 11\u306e\u65b0\u3057\u3044\u53d7\u4fe1\u306e\u898f\u5247\u30a6\u30a3\u30b6\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34636\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-11.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">8. \u898f\u5247\u3092\u9069\u7528\u3059\u308b\u7bc4\u56f2\u3092\u9078\u629e\u3057\u3001\u300c<em>\u6b21\u3078<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6-1024x575.png\" alt=\"\u65b0\u3057\u3044\u898f\u5247\u306b\u5bfe\u3057\u3066\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u9078\u629e\u3055\u308c\u305f\u65b0\u3057\u3044\u53d7\u4fe1\u306e\u898f\u5247\u30a6\u30a3\u30b6\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34632\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-6.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">9. \u30dd\u30fc\u30c8\u306b\u4efb\u610f\u306e\u540d\u524d\u3092\u4ed8\u3051\u3001\u300c<em>\u5b8c\u4e86<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3-1024x575.png\" alt=\"\u65b0\u3057\u3044\u898f\u5247\u306e\u540d\u524d\u6b04\u304c\u5165\u529b\u3055\u308c\u305f\u65b0\u3057\u3044\u53d7\u4fe1\u306e\u898f\u5247\u30a6\u30a3\u30b6\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\" class=\"wp-image-34624\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-3.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">10. \u30dd\u30fc\u30c8\u304c\u6709\u52b9\u5316\u3055\u308c\u3001\u53f3\u5074\u30e1\u30cb\u30e5\u30fc\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3067\u8a2d\u5b9a\u3092\u7d42\u4e86\u3057\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3092\u518d\u8d77\u52d5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5-1024x575.png\" alt=\"\u65b0\u3057\u304f\u6709\u52b9\u5316\u3055\u308c\u305f\u898f\u5247\u304c\u8868\u793a\u3055\u308c\u305fWindows\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u300c\u65b0\u3057\u3044\u53d7\u4fe1\u306e\u898f\u5247\u30a6\u30a3\u30b6\u30fc\u30c9\u300d\u3002\" class=\"wp-image-34626\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5-1024x575.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5-1536x863.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5-1200x674.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-5.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-macos\u3067443\u30dd\u30fc\u30c8\u3092\u958b\u304f\">macOS\u3067443\u30dd\u30fc\u30c8\u3092\u958b\u304f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1. macOS\u306e\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u3067\u300c<em>\u30b7\u30b9\u30c6\u30e0\u8a2d\u5b9a<\/em>\u300d\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"975\" height=\"640\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-10.png\" alt=\"\u8a2d\u5b9a\u30a2\u30a4\u30b3\u30f3\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fmacOS\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u3002\" class=\"wp-image-34635\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-10.png 975w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-10-300x197.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-10-768x504.png 768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2. \u8868\u793a\u3055\u308c\u305f\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u5de6\u5074\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<em>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/em>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"671\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9-1024x671.png\" alt=\"\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u300d\u30bf\u30d6\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fmacOS\u8a2d\u5b9a\u753b\u9762\u3002\" class=\"wp-image-34634\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9-1024x671.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9-300x197.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9-768x504.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9-1536x1007.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9-1200x787.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-9.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3. \u300c<em>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u8a2d\u5b9a\u3092\u958b\u304d\u307e\u3059\uff08\u901a\u5e38\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30aa\u30f3\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30aa\u30d5\u306e\u5834\u5408\u306f\u3001\u624b\u9806\u3092\u5b8c\u4e86\u3059\u308b\u305f\u3081\u306b\u30aa\u30f3\u306b\u3057\u3066\u304f\u3060\u3055\u3044\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"671\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4-1024x671.png\" alt=\"\u300c\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u300d\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fmacOS\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u753b\u9762\u3002\" class=\"wp-image-34627\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4-1024x671.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4-300x197.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4-768x504.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4-1536x1007.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4-1200x787.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-4.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">4. \u300c<em>\u30aa\u30d7\u30b7\u30e7\u30f3<\/em>\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"671\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8-1024x671.png\" alt=\"\u300c\u30aa\u30d7\u30b7\u30e7\u30f3\u300d\u30dc\u30bf\u30f3\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305fmacOS\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u8a2d\u5b9a\u753b\u9762\u3002\" class=\"wp-image-34633\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8-1024x671.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8-300x197.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8-768x504.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8-1536x1007.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8-1200x787.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-8.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">5. 443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u53f3\u5074\u306b\u3042\u308b\u4e0a\u4e0b\u77e2\u5370\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u304b\u3001\u300c\uff0b\u300d\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u3001\u3088\u308a\u591a\u304f\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u4e00\u89a7\u304b\u3089\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"671\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7-1024x671.png\" alt=\"\u4e0a\u4e0b\u77e2\u5370\u304a\u3088\u3073\uff0b\u30a2\u30a4\u30b3\u30f3\u304c\u5f37\u8abf\u8868\u793a\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u4e00\u89a7\u3002\" class=\"wp-image-34630\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7-1024x671.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7-300x197.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7-768x504.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7-1536x1007.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7-1200x787.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/image-7.png 1600w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">6. \u30a2\u30d7\u30ea\u304c\u4e00\u89a7\u306b\u8ffd\u52a0\u3055\u308c\u305f\u3001\u307e\u305f\u306f\u3059\u3067\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u53f3\u5074\u306b\u3042\u308b\u4e0a\u4e0b\u77e2\u5370\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c\u53d7\u4fe1\u63a5\u7d9a\u3092\u8a31\u53ef\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3046\u3048\u3067\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u6b04\u306b\u300c443\u300d\u3092\u5165\u529b\u3057\u3001\u300c<em>OK<\/em>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-443\u30dd\u30fc\u30c8\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\">443\u30dd\u30fc\u30c8\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-telnet\u307e\u305f\u306fnetcat\u3092\u5b9f\u884c\u3059\u308b\">Telnet\u307e\u305f\u306fNetcat\u3092\u5b9f\u884c\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Telnet\u304a\u3088\u3073Netcat\u306f\u3001\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u306b\u30b5\u30fc\u30d0\u30fc\u304c\u5230\u9054\u53ef\u80fd\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3067\u3059\u3002HTTPS\u3084TLS\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u691c\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u969b\u306b443\u30dd\u30fc\u30c8\u3078\u306e\u57fa\u672c\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u6027\u3092\u78ba\u8a8d\u3059\u308b\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Windows\uff08Telnet\uff09\uff1a<\/strong>\u30b3\u30de\u30f3\u30c9\u300ctelnet &lt;IP\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3&gt; 443\u300d\uff08\u4f8b\uff1atelnet 192.168.11.1 443\uff09\u3092\u5165\u529b\u3057\u3001<em>Enter<\/em>\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002\u6b63\u5e38\u306b\u63a5\u7d9a\u3067\u304d\u308c\u3070443\u30dd\u30fc\u30c8\u306f\u958b\u3044\u3066\u3044\u307e\u3059\u3002\u63a5\u7d9a\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>macOS\/Linux\uff08Netcat\uff09\uff1a<\/strong>\u300cnc -zv &lt;IP\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30db\u30b9\u30c8\u540d&gt; 443\u300d\uff08\u4f8b\uff1anc -zv xyz.com 443\uff09\u3092\u5b9f\u884c\u3057\u3001<em>Return<\/em>\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002\u30dd\u30fc\u30c8\u304c\u958b\u3044\u3066\u3044\u308b\u5834\u5408\u3001\u63a5\u7d9a\u304c\u6210\u529f\u3057\u305f\u3053\u3068\u3092\u793a\u3059\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002macOS\u3067\u306fTelnet\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u30dd\u30fc\u30c8\u30c1\u30a7\u30c3\u30ab\u30fc\u30c4\u30fc\u30eb\u307e\u305f\u306fweb\u30b5\u30a4\u30c8\u3092\u4f7f\u7528\u3059\u308b\">\u30dd\u30fc\u30c8\u30c1\u30a7\u30c3\u30ab\u30fc\u30c4\u30fc\u30eb\u307e\u305f\u306fWeb\u30b5\u30a4\u30c8\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u983c\u3067\u304d\u308b\u63d0\u4f9b\u5143\u306b\u3088\u308b\u30dd\u30fc\u30c8\u30c1\u30a7\u30c3\u30ab\u30fc\u306e\u4e00\u4f8b\u3068\u3057\u3066\u3001Microsoft\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c4\u30fc\u30eb\u3067\u3042\u308b<a href=\"https:\/\/www.microsoft.com\/en-us\/download\/details.aspx?id=17148\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Portqry<\/a>\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306eTCP\/IP\u63a5\u7d9a\u30c6\u30b9\u30c8\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u306f\u3001\u30dd\u30fc\u30c8\u30b9\u30ad\u30e3\u30ca\u30fc\u3084\u30ed\u30fc\u30ab\u30eb\u30dd\u30fc\u30c8\u30e2\u30cb\u30bf\u30fc\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30dd\u30fc\u30c8\u306e\u8aa4\u8a2d\u5b9a\u3092\u542b\u3080\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u95a2\u9023\u306e\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u7a2e\u306e\u30c4\u30fc\u30eb\u306e\u5229\u70b9\u306e\u4e00\u3064\u306f\u3001\u30dd\u30fc\u30c8\u306e\u554f\u984c\u3092\u8a3a\u65ad\u3059\u308b\u305f\u3081\u306b\u9ad8\u5ea6\u306a\u6280\u8853\u30b9\u30ad\u30eb\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u70b9\u3067\u3059\u3002\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u8a3a\u65ad\u3092\u884c\u3063\u3066\u304f\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u591a\u304f\u306e\u30dd\u30fc\u30c8\u30c1\u30a7\u30c3\u30ab\u30fc\u3001\u3068\u304f\u306b\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u306f\u5916\u90e8\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u4f9d\u5b58\u5ea6\u304c\u9ad8\u3044\u305f\u3081\u3001\u5185\u90e8\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u30eb\u30fc\u30eb\u3084ISP\u306b\u3088\u308b\u5236\u9650\u306b\u8d77\u56e0\u3059\u308b\u63a5\u7d9a\u6027\u306e\u554f\u984c\u3092\u691c\u51fa\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\u4e00\u822c\u7684\u306a\u554f\u984c\u306e\u5bfe\u51e6\u65b9\u6cd5\">\u4e00\u822c\u7684\u306a\u554f\u984c\u306e\u5bfe\u51e6\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u554f\u984c\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u554f\u984c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30d0\u30a4\u30b9\u3001\u30eb\u30fc\u30bf\u30fc\u3001\u307e\u305f\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30d9\u30eb\u3067\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u304c\u7af6\u5408\u3059\u308b\u3068\u3001443\u30dd\u30fc\u30c8\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>macOS\uff1a<em>\u30b7\u30b9\u30c6\u30e0\u74b0\u5883\u8a2d\u5b9a<\/em> &gt; <em>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc<\/em> &gt; <em>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30aa\u30d7\u30b7\u30e7\u30f3<\/em> &gt; HTTPS\u901a\u4fe1\u306b\u95a2\u3059\u308b\u73fe\u5728\u306e\u30eb\u30fc\u30eb\u3092\u78ba\u8a8d\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3059\u3079\u3066\u306eHTTPS\u901a\u4fe1\u3067443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u65b0\u3057\u3044\u30eb\u30fc\u30eb\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>Windows\uff1a<em>Windows Defender \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/em> &gt; HTTPS\u306e\u53d7\u4fe1\u306e\u898f\u5247\u3092\u78ba\u8a8d\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3059\u3079\u3066\u306eHTTPS\u901a\u4fe1\u3067443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u65b0\u3057\u3044\u30eb\u30fc\u30eb\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p><div style=\"background-color: #cfe2f3; padding: 1em; border-radius: 1em;\"><p><strong>\u6ce8\u610f<\/strong>\uff1a\u30eb\u30fc\u30bf\u30fc\u306e\u64cd\u4f5c\u624b\u9806\u306f\u4e00\u822c\u7684\u306a\u3082\u306e\u3067\u3042\u308a\u3001\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u56fa\u6709\u306e\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u306eWeb\u30b5\u30a4\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p><\/div>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30eb\u30fc\u30bf\u30fc\uff1a\u30d6\u30e9\u30a6\u30b6\u306b\u30eb\u30fc\u30bf\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b &gt; \u30eb\u30fc\u30bf\u30fc\u306b\u30ed\u30b0\u30a4\u30f3 &gt; <em>\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0<\/em>\u3092\u958b\u304f &gt; <em>\u65b0\u3057\u3044\u30eb\u30fc\u30eb<\/em> &gt; <em>TCP<\/em>\u3092\u9078\u629e &gt; \u30dd\u30fc\u30c8\u756a\u53f7443 &gt; \u30c7\u30d0\u30a4\u30b9\u306e\u30ed\u30fc\u30ab\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b &gt; <em>\u5909\u66f4\u3092\u4fdd\u5b58 <\/em>&gt; \u518d\u8d77\u52d5\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">443\u30dd\u30fc\u30c8\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u306a\u3044\u3088\u3046\u3001\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u304a\u3088\u3073\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u306f\u6574\u5408\u6027\u306e\u3042\u308b\u30eb\u30fc\u30eb\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-\u53e4\u3044ssl-tls\u8a3c\u660e\u66f8\">\u53e4\u3044SSL\/TLS\u8a3c\u660e\u66f8<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u306b\u306f\u3001\u6709\u52b9\u306aSSL\/TLS\u8a3c\u660e\u66f8\u304c\u5fc5\u8981\u3067\u3059\u3002\u8a3c\u660e\u66f8\u306e\u671f\u9650\u5207\u308c\u3084\u8a2d\u5b9a\u4e0d\u5099\u304c\u3042\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u300c\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u3067\u306f\u306a\u3044\u300d\u300c\u5b89\u5168\u3067\u306f\u306a\u3044\u300d\u3068\u3044\u3063\u305f\u8b66\u544a\u304c\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u300280\u756a\u30dd\u30fc\u30c8\u3067\u30b5\u30a4\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u901a\u4fe1\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u304a\u3089\u305a\u3001HTTPS\u30ec\u30d9\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u63d0\u4f9b\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-isp\u306e\u5e72\u6e09\">ISP\u306e\u5e72\u6e09<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">HTTPS\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u9045\u3044\u3001\u307e\u305f\u306f\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001ISP\u304c\u30d4\u30fc\u30af\u6642\u9593\u5e2f\u306b443\u30dd\u30fc\u30c8\u306e\u901a\u4fe1\u3092\u5236\u9650\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002VPN\u3092\u5c0e\u5165\u3059\u308b\u3068\u3001\u6700\u521d\u306e\u63a5\u7d9a\u7d4c\u8def\u3092443\u30dd\u30fc\u30c8\u4ee5\u5916\u306b\u79fb\u305b\u308b\u305f\u3081\u3001\u5bfe\u7b56\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u305f\u3081\u306b\u306fVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001UDP\u4e0a\u306eWireGuard\u306f51820\u756a\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3001UDP\u4e0a\u306eOpenVPN\u306f1194\u756a\u30dd\u30fc\u30c8\u3001TCP\u4e0a\u3067\u306f80\u756a\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<a href=\"https:\/\/www.privateinternetaccess.com\/ja\/\">PIA<\/a>\u306f\u4e21\u65b9\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u65b9\u6cd5\u3067\u306f\u3001\u307e\u305a\u30b9\u30ed\u30c3\u30c8\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3044\u306a\u3044\u30dd\u30fc\u30c8\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u901a\u4fe1\u304cVPN\u30b5\u30fc\u30d0\u30fc\u306b\u5230\u9054\u3059\u308b\u3068\u3001Web\u30b5\u30a4\u30c8\u3068\u306e\u901a\u4fe1\u306f443\u30dd\u30fc\u30c8\u306b\u5207\u308a\u66ff\u308f\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u51e6\u7406\u306fISP\u306e\u7ba1\u7406\u5916\u3067\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-\u30d7\u30ed\u30ad\u30b7\u306e\u8a2d\u5b9a\u4e0d\u5099\">\u30d7\u30ed\u30ad\u30b7\u306e\u8a2d\u5b9a\u4e0d\u5099<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u304c\u8aa4\u3063\u3066\u3044\u308b\u30d7\u30ed\u30ad\u30b7\u306f\u3001443\u30dd\u30fc\u30c8\u306e\u901a\u4fe1\u3092\u30d6\u30ed\u30c3\u30af\u3057\u305f\u308a\u3001\u6b63\u3057\u3044\u5b9b\u5148\u3078\u8ee2\u9001\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057\u3001443\u30dd\u30fc\u30c8\u304c\u6b63\u3057\u304f\u958b\u653e\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Windows\uff1a<em>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30aa\u30d7\u30b7\u30e7\u30f3<\/em> &gt; <em>\u63a5\u7d9a<\/em> &gt; <em>LAN\u306e\u8a2d\u5b9a<\/em> &gt; <em>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc<\/em>\u3092\u9078\u629e &gt; 443\u30dd\u30fc\u30c8\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>macOS\uff1a<em>\u30b7\u30b9\u30c6\u30e0\u74b0\u5883\u8a2d\u5b9a<\/em> &gt; <em>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/em> &gt; <em>\u30a2\u30c9\u30d0\u30f3\u30b9<\/em> &gt; <em>\u30d7\u30ed\u30ad\u30b7<\/em> &gt; <em>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc<\/em>\u3092\u9078\u629e &gt; 443\u30dd\u30fc\u30c8\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u7af6\u5408\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u7af6\u5408<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u30de\u30eb\u30a6\u30a7\u30a2\u3001\u901a\u4fe1\u5207\u65ad\u3001\u307e\u305f\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u8a2d\u5b9a\u4e0d\u5099\u306b\u3088\u308a\u3001443\u30dd\u30fc\u30c8\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u524d\u306b443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3067\u304d\u3066\u3044\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066\u306f\u3001\u307e\u305a\u30c7\u30d0\u30a4\u30b9\u306e\u518d\u8d77\u52d5\u3092\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u6b63\u3057\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u304c\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u3067\u3082\u6539\u5584\u3057\u306a\u3044\u5834\u5408\u3084\u3001\u554f\u984c\u304c\u3088\u308a\u5e83\u7bc4\u306b\u53ca\u3093\u3067\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u57fa\u672c\u7684\u306a\u5bfe\u51e6\u6cd5\u3092\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30d0\u30a4\u30b9\u3092\u518d\u8d77\u52d5\u3057\u3001\u901a\u4fe1\u306e\u8aa4\u9001\u4fe1\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u8efd\u5fae\u306a\u554f\u984c\u3092\u89e3\u6d88\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u307e\u305f\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8a2d\u5b9a\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u306b\u623b\u3057\u3001\u305d\u306e\u5f8c443\u30dd\u30fc\u30c8\u7528\u306b\u518d\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u305d\u308c\u3067\u3082\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u307e\u305f\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b5\u30dd\u30fc\u30c8\u306b\u554f\u3044\u5408\u308f\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faq\">FAQ<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1767604257785\"><h3 class=\"schema-faq-question\">443\u30dd\u30fc\u30c8\u306e\u8106\u5f31\u6027\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\"><a href=\"#p4\">\u30dd\u30fc\u30c8\u306e\u4e3b\u306a\u8106\u5f31\u6027<\/a>\u306f\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u304c\u9732\u51fa\u3059\u308b\u70b9\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30c7\u30d0\u30a4\u30b9\u3067443\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u306b\u3059\u308b\u969b\u306e\u8a2d\u5b9a\u30df\u30b9\u3084\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304a\u3088\u3073\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u66f4\u65b0\u4e0d\u8db3\u3082\u3001\u30ea\u30b9\u30af\u8981\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604267887\"><h3 class=\"schema-faq-question\">\u306a\u305cVPN\u306b\u3068\u3063\u3066443\u30dd\u30fc\u30c8\u304c\u91cd\u8981\u306a\u306e\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">HTTPS\u901a\u4fe1\u3068\u540c\u69d8\u306b\u3001VPN\u3082SSL\/TLS\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u3063\u3066\u63a5\u7d9a\u3092\u6697\u53f7\u5316\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u901a\u4fe1\u306b\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b443\u30dd\u30fc\u30c8\u306f\u3001VPN\u901a\u4fe1\u306b\u3082\u9069\u3057\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/www.privateinternetaccess.com\/ja\/buy-vpn-online\">VPN<\/a>\u306f443\u30dd\u30fc\u30c8\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001ISP\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u306a\u3069\u304b\u3089VPN\u901a\u4fe1\u3092\u901a\u5e38\u306eHTTPS\u901a\u4fe1\u306e\u3088\u3046\u306b\u898b\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u3001VPN\u5229\u7528\u6642\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u9ad8\u3081\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604278798\"><h3 class=\"schema-faq-question\">443\u30dd\u30fc\u30c8\u3092\u958b\u653e\u3057\u3066\u3082\u5b89\u5168\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u4e00\u822c\u7684\u306b443\u30dd\u30fc\u30c8\u3092\u958b\u653e\u3059\u308b\u3053\u3068\u306f\u5b89\u5168\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u5b8c\u5168\u306b\u30ea\u30b9\u30af\u304c\u306a\u3044\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002443\u30dd\u30fc\u30c8\u306e\u8106\u5f31\u6027\u306e\u591a\u304f\u306f\u8a2d\u5b9a\u6642\u306e\u4eba\u70ba\u7684\u30df\u30b9\u306b\u8d77\u56e0\u3057\u307e\u3059\u3002<a href=\"#hto\">\u30c7\u30d0\u30a4\u30b9\u3067443\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u5316\u3059\u308b\u969b<\/a>\u306b\u3001\u9069\u5207\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u9078\u629e\u3057\u3001\u8a2d\u5b9a\u5185\u5bb9\u3092\u614e\u91cd\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3067\u304d\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604291684\"><h3 class=\"schema-faq-question\">\u306a\u305c443\u30dd\u30fc\u30c8\u304c\u5fc5\u8981\u306a\u306e\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">443\u30dd\u30fc\u30c8\u306fHTTPS\u306e\u6a19\u6e96\u30dd\u30fc\u30c8\u3067\u3042\u308a\u3001<a href=\"#hp\">TLS\u6697\u53f7\u5316\u306b\u3088\u3063\u3066Web\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4fdd\u8b77<\/a>\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u3068Web\u30b5\u30a4\u30c8\u9593\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u308b\u6a5f\u5bc6\u30c7\u30fc\u30bf\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u3084PII\u306a\u3069\uff09\u3092\u5b88\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3084\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u95a2\u9023\u30c4\u30fc\u30eb\u3067\u3082\u5e83\u304f\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u4e00\u90e8\u306eVPN\u306f\u5236\u9650\u306e\u53b3\u3057\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u3067\u3082\u52d5\u4f5c\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b443\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u3053\u306e\u30dd\u30fc\u30c8\u4e0a\u306eHTTPS\u901a\u4fe1\u3092\u76e3\u8996\u30fb\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604301488\"><h3 class=\"schema-faq-question\">443\u30dd\u30fc\u30c8\u304c\u958b\u3044\u3066\u3044\u308b\u3068\u4f55\u304c\u8d77\u3053\u308a\u307e\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u30dd\u30fc\u30c8\u306f\u3001\u6f5c\u5728\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u653b\u6483\u3092\u9632\u3050\u305f\u3081\u9589\u3058\u3066\u304a\u304f\u306e\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u3002443\u30dd\u30fc\u30c8\u306fHTTPS\u901a\u4fe1\u3067\u4e00\u822c\u7684\u306b\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u6697\u53f7\u5316\u3060\u3051\u3067\u306f\u3001\u305d\u306e\u30dd\u30fc\u30c8\u4e0a\u3067\u52d5\u4f5c\u3059\u308b\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u5b89\u5168\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b5\u30fc\u30d3\u30b9\u306e\u8a2d\u5b9a\u4e0d\u5099\u3084\u672a\u66f4\u65b0\u306e\u72b6\u614b\u304c\u3042\u308b\u3068\u3001\u653b\u6483\u8005\u304c<a href=\"https:\/\/www.privateinternetaccess.com\/blog\/manage-security-vulnerabilities\/\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8106\u5f31\u6027<\/a>\u3092\u60aa\u7528\u3057\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3084\u30de\u30eb\u30a6\u30a7\u30a2\u914d\u5e03\u3001\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\u653b\u6483\u3092\u884c\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604310365\"><h3 class=\"schema-faq-question\">443\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u306f\u3044\u3001\u30b7\u30b9\u30c6\u30e0\u3084\u30eb\u30fc\u30bf\u30fc\u306e<a href=\"https:\/\/www.privateinternetaccess.com\/blog\/how-does-a-firewall-work\/\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u3067443\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001443\u30dd\u30fc\u30c8\u306fHTTPS\u901a\u4fe1\u306b\u4e0d\u53ef\u6b20\u306a\u305f\u3081\u3001\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3068\u591a\u304f\u306eWeb\u30b5\u30a4\u30c8\u3084\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u30c6\u30b9\u30c8\u3084\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u7528\u9014\u3092\u9664\u304d\u3001\u65e5\u5e38\u5229\u7528\u3067\u306f\u4e00\u822c\u7684\u306b\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604319084\"><h3 class=\"schema-faq-question\">80\u756a\u30dd\u30fc\u30c8\u3068443\u756a\u30dd\u30fc\u30c8\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">80\u756a\u30dd\u30fc\u30c8\u3068443\u756a\u30dd\u30fc\u30c8\u306f\u3001Web\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30dd\u30fc\u30c8\u3067\u3059\u300280\u756a\u30dd\u30fc\u30c8\u306fHTTP\uff08\u975e\u6697\u53f7\u5316\uff09\u901a\u4fe1\u3092\u51e6\u7406\u3057\u3001443\u756a\u30dd\u30fc\u30c8\u306fHTTPS\uff08\u6697\u53f7\u5316\uff09\u901a\u4fe1\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p><p><\/p>443\u756a\u30dd\u30fc\u30c8\u3067\u306f\u3001TCP\u306a\u3069\u306e<a href=\"https:\/\/helpdesk.privateinternetaccess.com\/search?q=protocols\">\u30d7\u30ed\u30c8\u30b3\u30eb<\/a>\u306b\u3088\u308a\u30c7\u30fc\u30bf\u306e\u6b63\u78ba\u6027\u3068\u9806\u5e8f\u304c\u4fdd\u305f\u308c\u3001SSL\/TLS\u306b\u3088\u3063\u3066\u6697\u53f7\u5316\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u4e00\u65b9\u300180\u756a\u30dd\u30fc\u30c8\u3067\u306f\u6697\u53f7\u5316\u304c\u884c\u308f\u308c\u306a\u3044\u305f\u3081\u3001\u901a\u4fe1\u901f\u5ea6\u306f\u3084\u3084\u9ad8\u901f\u3067\u3059\u3002 <br><br> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1767604329064\"><h3 class=\"schema-faq-question\">443\u30dd\u30fc\u30c8\u3067HTTP\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u6280\u8853\u7684\u306b\u306f<a href=\"#wip1\">443\u30dd\u30fc\u30c8<\/a>\u3067HTTP\u901a\u4fe1\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001\u591a\u304f\u306e\u30b5\u30fc\u30d0\u30fc\u306f\u3053\u306e\u30dd\u30fc\u30c8\u3067HTTPS\u901a\u4fe1\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u72b6\u614b\u3067443\u30dd\u30fc\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u306f\u63a5\u7d9a\u304c\u5931\u6557\u3057\u307e\u3059\u3002<\/p><p><\/p>Web\u30b5\u30a4\u30c8\u304cHTTP\u304b\u3089HTTPS\u3078\u79fb\u884c\u3059\u308b\u969b\u306f\u3001\u901a\u5e38\u3001\u901a\u4fe1\u9014\u4e2d\u3067\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5207\u308a\u66ff\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u300180\u756a\u30dd\u30fc\u30c8\u304b\u3089443\u756a\u30dd\u30fc\u30c8\u3078\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3057\u307e\u3059\u3002<p><\/p>\u307e\u305f\u3001HTTPS\u3092\u4f7f\u7528\u3059\u308b\u30b5\u30a4\u30c8\u3067443\u30dd\u30fc\u30c8\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u308b\u3001\u307e\u305f\u306f\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u3001HTTPS\u901a\u4fe1\u304c\u81ea\u52d5\u7684\u306b80\u756a\u30dd\u30fc\u30c8\u3078\u5207\u308a\u66ff\u308f\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4ee3\u66ff\u30dd\u30fc\u30c8\u3067HTTPS\u3092\u63d0\u4f9b\u3059\u308b\u8a2d\u5b9a\u304c\u3042\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u660e\u793a\u7684\u306b\u63a5\u7d9a\u3057\u306a\u3044\u9650\u308a\u3001\u63a5\u7d9a\u306f\u5931\u6557\u3057\u307e\u3059\u3002 <\/div> <\/div>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>\u610f\u8b58\u3057\u3066\u3044\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u79c1\u305f\u3061\u306f\u65e5\u5e38\u7684\u306b443\u30dd\u30fc\u30c8\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u9280\u884c\u30a2\u30d7\u30ea\u3092\u4f7f\u3046\u3068\u304d\u3001\u30af\u30ec\u30b8\u30c3\u30c8\u30b9\u30b3\u30a2\u3092\u78ba\u8a8d\u3059\u308b\u3068\u304d\u3001SNS\u3092\u95b2\u89a7\u3059\u308b\u3068\u304d\u306a\u3069\u3001\u3042\u3089\u3086\u308b\u5834\u9762\u3067443\u30dd\u30fc\u30c8\u304c\u6a5f\u80fd\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd &hellip; <a href=\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/what-is-port-443\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;443\u30dd\u30fc\u30c8\u3068\u306f\uff1f\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u7406\u7531&#8221;<\/span><\/a><\/p>\n","protected":false},"author":73,"featured_media":36049,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_stopmodifiedupdate":false,"_modified_date":"","footnotes":""},"categories":[3065],"tags":[],"class_list":["post-36050","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3065"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v26.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>443\u30dd\u30fc\u30c8\u3068\u306f\uff1f\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u7406\u7531<\/title>\n<meta name=\"description\" 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