{"id":17318,"date":"2025-12-10T12:42:56","date_gmt":"2025-12-10T09:12:56","guid":{"rendered":"https:\/\/www.itpiran.net\/blog\/?p=17318"},"modified":"2025-12-10T12:42:56","modified_gmt":"2025-12-10T09:12:56","slug":"best-practices-for-preventing-dns-and-webrtc-leaks-when-using-a-vpn","status":"publish","type":"post","link":"https:\/\/www.itpiran.net\/blog\/ja\/tutorials\/best-practices-for-preventing-dns-and-webrtc-leaks-when-using-a-vpn\/","title":{"rendered":"VPN\u4f7f\u7528\u6642\u306bDNS\u3068WebRTC\u306e\u6f0f\u6d29\u3092\u9632\u3050\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9"},"content":{"rendered":"<p data-start=\"343\" data-end=\"632\">\n<p data-start=\"343\" data-end=\"632\">VPN \u4f7f\u7528\u6642\u306b\u6700\u3082\u3088\u304f\u767a\u751f\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u554f\u984c\u306f\u6b21\u306e 2 \u3064\u3067\u3059\u3002<\/p>\n<ul data-start=\"634\" data-end=\"689\">\n<li data-start=\"634\" data-end=\"658\">\n<p data-start=\"636\" data-end=\"658\"><strong data-start=\"636\" data-end=\"658\">DNS\u30ea\u30fc\u30af<\/strong><\/p>\n<\/li>\n<li data-start=\"659\" data-end=\"689\">\n<p data-start=\"661\" data-end=\"689\"><strong data-start=\"661\" data-end=\"689\">WebRTC \u30ea\u30fc\u30af<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"691\" data-end=\"922\">\u3053\u308c\u3089\u306e\u6f0f\u308c\u306f <strong data-start=\"712\" data-end=\"766\">\u3042\u306a\u305f\u306e\u5b9f\u969b\u306eIP\u3001\u4f4d\u7f6e\u60c5\u5831\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3<\/strong> VPN\u304c\u6709\u52b9\u306a\u5834\u5408\u3067\u3082\u3001\u60c5\u5831\u6f0f\u6d29\u306f\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u60c5\u5831\u6f0f\u6d29\u304c\u3069\u306e\u3088\u3046\u306b\u767a\u751f\u3059\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u305d\u308c\u3092\u9632\u3050\u6700\u5584\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<hr data-start=\"924\" data-end=\"969\" \/>\n<h2 id=\"dns-leak-%da%86%db%8c%d8%b3%d8%aa%d8%9f\" data-start=\"971\" data-end=\"991\">DNS \u30ea\u30fc\u30af\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h2>\n<p data-start=\"992\" data-end=\"1163\">DNS\u306f\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0\u306e\u7565\u3067\u3001google.com\u306e\u3088\u3046\u306a\u30c9\u30e1\u30a4\u30f3\u30a2\u30c9\u30ec\u30b9\u3092IP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002VPN\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u3059\u3079\u3066\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306fVPN\u30c8\u30f3\u30cd\u30eb\u3092\u901a\u904e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p data-start=\"1165\" data-end=\"1291\">\u3057\u304b\u3057\u3001 <strong data-start=\"1182\" data-end=\"1194\">DNS\u30ea\u30fc\u30af<\/strong>\u30b7\u30b9\u30c6\u30e0\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3092 VPN \u306e DNS \u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001ISP \u306e DNS \u306b\u76f4\u63a5\u9001\u4fe1\u3057\u307e\u3059\u3002.<\/p>\n<p><strong data-start=\"1297\" data-end=\"1307\">\u7d50\u679c\uff1f<\/strong><\/p>\n<ul data-start=\"1308\" data-end=\"1409\">\n<li data-start=\"1308\" data-end=\"1334\">\n<p data-start=\"1310\" data-end=\"1334\">\u3042\u306a\u305f\u306e\u5b9f\u969b\u306e IP \u304c\u516c\u958b\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li data-start=\"1335\" data-end=\"1368\">\n<p data-start=\"1337\" data-end=\"1368\">\u5b9f\u969b\u306e\u4f4d\u7f6e\u304c\u8a18\u9332\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li data-start=\"1369\" data-end=\"1409\">\n<p data-start=\"1371\" data-end=\"1409\">\u3042\u306a\u305f\u306e\u6d3b\u52d5\u306f\u8ffd\u8de1\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1411\" data-end=\"1478\">DNS \u30ea\u30fc\u30af\u306f\u6df1\u523b\u306a\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u554f\u984c\u3067\u3059\u304c\u3001\u7c21\u5358\u306b\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<hr data-start=\"1480\" data-end=\"1525\" \/>\n<h2 id=\"webrtc-leak-%da%86%db%8c%d8%b3%d8%aa%d8%9f\">WebRTC \u30ea\u30fc\u30af\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h2>\n<p data-start=\"1551\" data-end=\"1770\">WebRTC \u306f\u3001\u30d3\u30c7\u30aa\u901a\u8a71\u3001\u753b\u9762\u5171\u6709\u3001\u30d6\u30e9\u30a6\u30b6\u9593\u901a\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u308b\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002.<br data-start=\"1655\" data-end=\"1658\" \/>\u3057\u304b\u3057WebRTC\u306f <strong data-start=\"1678\" data-end=\"1769\">HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u306a\u304f\u3066\u3082\u3001VPN\u306b\u95a2\u4fc2\u306a\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u76f4\u63a5\u5b9f\u969b\u306eIP\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/strong>.<\/p>\n<p>\u306a\u305c\u5371\u967a\u306a\u306e\u3067\u3057\u3087\u3046\u304b?<\/p>\n<ul data-start=\"1792\" data-end=\"1940\">\n<li data-start=\"1792\" data-end=\"1826\">\n<p data-start=\"1794\" data-end=\"1826\">WebRTC\u306fVPN\u3068\u306f\u72ec\u7acb\u3057\u3066\u52d5\u4f5c\u3057\u307e\u3059<\/p>\n<\/li>\n<li data-start=\"1827\" data-end=\"1873\">\n<p data-start=\"1829\" data-end=\"1873\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b7\u30b9\u30c6\u30e0\u30ec\u30d9\u30eb\u3067\u5b9f\u969b\u306eIP\u3092\u8aad\u307f\u53d6\u308a\u307e\u3059<\/p>\n<\/li>\n<li data-start=\"1874\" data-end=\"1940\">\n<p data-start=\"1876\" data-end=\"1940\">\u30b5\u30a4\u30c8\u306f\u7c21\u5358\u306aJS\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u3042\u306a\u305f\u306eIP\u3092\u8b58\u5225\u3067\u304d\u308b<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1942\" data-end=\"1990\">\u3057\u305f\u304c\u3063\u3066\u3001WebRTC \u30ea\u30fc\u30af\u3092\u9632\u3050\u3053\u3068\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002.<\/p>\n<hr \/>\n<h2 id=\"%d8%a8%d9%87%d8%aa%d8%b1%db%8c%d9%86-%d8%b1%d9%88%d8%b4%d9%87%d8%a7%db%8c-%d8%ac%d9%84%d9%88%da%af%db%8c%d8%b1%db%8c-%d8%a7%d8%b2-%d9%86%d8%b4%d8%aa-dns-%d9%87%d9%86%da%af%d8%a7%d9%85-%d8%a7\">VPN\u4f7f\u7528\u6642\u306bDNS\u30ea\u30fc\u30af\u3092\u9632\u3050\u6700\u826f\u306e\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-vpn-%d8%a8%d8%a7-dns-%d8%ae%d8%b5%d9%88%d8%b5%db%8c\" data-start=\"2215\" data-end=\"2252\">1. \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8DNS\u4ed8\u304d\u306eVPN\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n<p data-start=\"2253\" data-end=\"2382\">\u6700\u5584\u304b\u3064\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u5c02\u7528 DNS \u3092\u5099\u3048\u305f VPN \u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3059\u3002.<br data-start=\"2315\" data-end=\"2318\" \/>VPN \u306f\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5185\u90e8 DNS \u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h4 id=\"%d9%88%db%8c%da%98%da%af%db%8c%d9%87%d8%a7%db%8c-vpn-%d9%85%d9%86%d8%a7%d8%b3%d8%a8\" data-start=\"2384\" data-end=\"2408\">\u512a\u308c\u305f VPN \u306e\u7279\u5fb4:<\/h4>\n<ul data-start=\"2409\" data-end=\"2508\">\n<li data-start=\"2409\" data-end=\"2424\">\n<p data-start=\"2411\" data-end=\"2424\">\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8DNS<\/p>\n<\/li>\n<li data-start=\"2425\" data-end=\"2459\">\n<p data-start=\"2427\" data-end=\"2459\">DNS over HTTPS \u307e\u305f\u306f DNS over TLS<\/p>\n<\/li>\n<li data-start=\"2460\" data-end=\"2508\">\n<p data-start=\"2462\" data-end=\"2508\">IPv6 \u30b5\u30dd\u30fc\u30c8 (\u307e\u305f\u306f IPv6 \u3092\u7121\u52b9\u306b\u3059\u308b\u6a5f\u80fd)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2510\" data-end=\"2565\">VPN \u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 DNS \u304c\u306a\u3044\u5834\u5408\u3001\u6f0f\u6d29\u306e\u53ef\u80fd\u6027\u304c\u975e\u5e38\u306b\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002.<\/p>\n<hr data-start=\"2567\" data-end=\"2570\" \/>\n<h3 id=\"2-%d8%ba%db%8c%d8%b1%d9%81%d8%b9%d8%a7%d9%84%d8%b3%d8%a7%d8%b2%db%8c-ipv6\" data-start=\"2572\" data-end=\"2599\">2. IPv6\u3092\u7121\u52b9\u306b\u3059\u308b<\/h3>\n<p data-start=\"2600\" data-end=\"2714\">\u591a\u304f\u306e VPN \u306f IPv6 \u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3002.<br data-start=\"2643\" data-end=\"2646\" \/>IPv6 \u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u5b9f\u969b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002.<\/p>\n<h3 id=\"%d8%af%d8%b1-%d9%84%db%8c%d9%86%d9%88%da%a9%d8%b3\" data-start=\"2716\" data-end=\"2730\">Linux\u306e\u5834\u5408:<\/h3>\n<p>sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1<\/p>\n<h3 id=\"%d8%af%d8%b1-%d9%88%db%8c%d9%86%d8%af%d9%88%d8%b2\" data-start=\"2792\" data-end=\"2806\">Windows\u306e\u5834\u5408:<\/h3>\n<p data-start=\"2807\" data-end=\"2877\">\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb \u2192 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u2192 \u30a2\u30c0\u30d7\u30bf \u2192 \u30d7\u30ed\u30d1\u30c6\u30a3 \u2192 IPv6 (\u30c1\u30a7\u30c3\u30af\u3092\u5916\u3059)<\/p>\n<hr data-start=\"2879\" data-end=\"2882\" \/>\n<h3 id=\"3-%d8%aa%d9%86%d8%b8%db%8c%d9%85-dns-%d8%af%d8%b3%d8%aa%db%8c-%d8%af%d8%b1-%d8%b3%db%8c%d8%b3%d8%aa%d9%85\" data-start=\"2884\" data-end=\"2917\">3. \u30b7\u30b9\u30c6\u30e0\u3067DNS\u3092\u624b\u52d5\u3067\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p data-start=\"2918\" data-end=\"2999\">\u30c7\u30d0\u30a4\u30b9\u306e DNS \u3092\u30bb\u30ad\u30e5\u30a2 DNS \u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002.<br data-start=\"2965\" data-end=\"2968\" \/>\u305f\u3068\u3048\u3070\u3001Cloudflare \u3084 Google DNS \u306a\u3069\u3067\u3059\u3002.<\/p>\n<h3 id=\"%d9%85%d8%ab%d8%a7%d9%84\" data-start=\"3001\" data-end=\"3010\">\u4f8b\uff1a<\/h3>\n<ul data-start=\"3011\" data-end=\"3034\">\n<li data-start=\"3011\" data-end=\"3022\">\n<p data-start=\"3013\" data-end=\"3022\">1.1.1.1<\/p>\n<\/li>\n<li data-start=\"3023\" data-end=\"3034\">\n<p data-start=\"3025\" data-end=\"3034\">8.8.8.8<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3036\" data-end=\"3074\">Windows\u3001Mac\u3001\u30e2\u30d0\u30a4\u30eb\u3067\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\u3002.<\/p>\n<hr data-start=\"3076\" data-end=\"3079\" \/>\n<h3 id=\"4-%d9%81%d8%b9%d8%a7%d9%84-%da%a9%d8%b1%d8%af%d9%86-kill-switch-%d8%af%d8%b1-vpn\" data-start=\"3081\" data-end=\"3119\">4. VPN\u306e\u30ad\u30eb\u30b9\u30a4\u30c3\u30c1\u3092\u6709\u52b9\u306b\u3059\u308b<\/h3>\n<p data-start=\"3120\" data-end=\"3234\">\u30ad\u30eb\u30b9\u30a4\u30c3\u30c1\u306f\u3001VPN \u63a5\u7d9a\u304c\u5207\u65ad\u3055\u308c\u305f\u5834\u5408\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u5b8c\u5168\u306b\u5207\u65ad\u3057\u3001\u5b9f\u969b\u306e\u30eb\u30fc\u30c8\u304b\u3089 DNS \u8981\u6c42\u304c\u9001\u4fe1\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002.<\/p>\n<hr data-start=\"3236\" data-end=\"3239\" \/>\n<h3 id=\"5-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%d8%a7%d8%a8%d8%b2%d8%a7%d8%b1%d9%87%d8%a7%db%8c-%d8%aa%d8%b3%d8%aa-dns-leak\" data-start=\"3241\" data-end=\"3283\">5. DNS\u30ea\u30fc\u30af\u30c6\u30b9\u30c8\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n<p data-start=\"3284\" data-end=\"3335\">\u6f0f\u308c\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u30c6\u30b9\u30c8\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<ul data-start=\"3336\" data-end=\"3375\">\n<li data-start=\"3336\" data-end=\"3347\">\n<p data-start=\"3338\" data-end=\"3347\">DNS\u30c6\u30b9\u30c8<\/p>\n<\/li>\n<li data-start=\"3348\" data-end=\"3360\">\n<p data-start=\"3350\" data-end=\"3360\">IPv6\u30c6\u30b9\u30c8<\/p>\n<\/li>\n<li data-start=\"3361\" data-end=\"3375\">\n<p data-start=\"3363\" data-end=\"3375\">WebRTC\u30c6\u30b9\u30c8<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3377\" data-end=\"3421\">ISP \u306e\u5b9f\u969b\u306e DNS \u304c\u8868\u793a\u3055\u308c\u305f\u5834\u5408 = \u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h2 id=\"%d8%a8%d9%87%d8%aa%d8%b1%db%8c%d9%86-%d8%b1%d9%88%d8%b4%d9%87%d8%a7%db%8c-%d8%ac%d9%84%d9%88%da%af%db%8c%d8%b1%db%8c-%d8%a7%d8%b2-%d9%86%d8%b4%d8%aa-webrtc-%d9%87%d9%86%da%af%d8%a7%d9%85\" data-start=\"3527\" data-end=\"3590\">VPN\u4f7f\u7528\u6642\u306bWebRTC\u6f0f\u6d29\u3092\u9632\u3050\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<h3 id=\"1-%d8%ba%db%8c%d8%b1%d9%81%d8%b9%d8%a7%d9%84%d8%b3%d8%a7%d8%b2%db%8c-webrtc-%d8%af%d8%b1-%d9%85%d8%b1%d9%88%d8%b1%da%af%d8%b1\" data-start=\"3649\" data-end=\"3688\">1. \u30d6\u30e9\u30a6\u30b6\u3067WebRTC\u3092\u7121\u52b9\u306b\u3059\u308b<\/h3>\n<p data-start=\"3689\" data-end=\"3735\">\u6700\u5584\u304b\u3064\u6700\u3082\u78ba\u5b9f\u306a\u65b9\u6cd5\u306f\u3001WebRTC \u3092\u30aa\u30d5\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n<h4 id=\"%d8%af%d8%b1-firefox\" data-start=\"3737\" data-end=\"3755\">Firefox\u306e\u5834\u5408<\/h4>\n<p data-start=\"3756\" data-end=\"3774\">\u6b21\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p data-start=\"3756\" data-end=\"3774\">about:config<\/p>\n<p data-start=\"3796\" data-end=\"3818\">\u6b21\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u691c\u7d22\u3057\u307e\u3059\u3002<\/p>\n<p data-start=\"3796\" data-end=\"3818\">media.peerconnection.enabled<\/p>\n<p data-start=\"3856\" data-end=\"3881\">\u306e\u4e0a <strong data-start=\"3860\" data-end=\"3869\">\u9593\u9055\u3044<\/strong> \u30bb\u30c3\u30c8\u3002.<\/p>\n<hr \/>\n<h4 id=\"%d8%af%d8%b1-chrome\" data-start=\"3888\" data-end=\"3905\">Chrome\u306e\u5834\u5408<\/h4>\n<p data-start=\"3906\" data-end=\"4006\">Chrome \u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 WebRTC \u3092\u5b8c\u5168\u306b\u7121\u52b9\u306b\u3059\u308b\u6a5f\u80fd\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u62e1\u5f35\u6a5f\u80fd\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul data-start=\"4008\" data-end=\"4090\">\n<li data-start=\"4008\" data-end=\"4026\">\n<p data-start=\"4010\" data-end=\"4026\">WebRTC\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/p>\n<\/li>\n<li data-start=\"4027\" data-end=\"4050\">\n<p data-start=\"4029\" data-end=\"4050\">WebRTC\u30ea\u30fc\u30af\u9632\u6b62<\/p>\n<\/li>\n<li data-start=\"4051\" data-end=\"4090\">\n<p data-start=\"4053\" data-end=\"4090\">uBlock Origin\uff08WebRTC\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u306b\u3059\u308b\uff09<\/p>\n<\/li>\n<\/ul>\n<h3 id=\"2-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%d9%85%d8%b1%d9%88%d8%b1%da%af%d8%b1%d9%87%d8%a7%db%8c-%d8%a7%d9%85%d9%86\" data-start=\"4097\" data-end=\"4131\">2. \u5b89\u5168\u306a\u30d6\u30e9\u30a6\u30b6\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n<p data-start=\"4132\" data-end=\"4171\">\u4e00\u90e8\u306e\u30d6\u30e9\u30a6\u30b6\u306f WebRTC \u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<ul data-start=\"4173\" data-end=\"4210\">\n<li data-start=\"4173\" data-end=\"4182\">\n<p data-start=\"4175\" data-end=\"4182\">\u52c7\u6562\u306a<\/p>\n<\/li>\n<li data-start=\"4183\" data-end=\"4194\">\n<p data-start=\"4185\" data-end=\"4194\">\u30d5\u30a1\u30a4\u30a2\u30d5\u30a9\u30c3\u30af\u30b9<\/p>\n<\/li>\n<li data-start=\"4195\" data-end=\"4210\">\n<p data-start=\"4197\" data-end=\"4210\">Tor\u30d6\u30e9\u30a6\u30b6<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4212\" data-end=\"4257\">Brave \u30d6\u30e9\u30a6\u30b6\u306f\u6700\u521d\u304b\u3089 WebRTC \u3092\u5236\u9650\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3 id=\"3-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-vpn-%d8%a8%d8%a7-webrtc-leak-protection\" data-start=\"4264\" data-end=\"4314\">3. WebRTC\u30ea\u30fc\u30af\u4fdd\u8b77\u6a5f\u80fd\u4ed8\u304d\u306eVPN\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n<p data-start=\"4315\" data-end=\"4443\">\u4e00\u90e8\u306e VPN \u306b\u306f\u3001WebRTC \u30ea\u30fc\u30af\u3092\u9632\u3050\u6a5f\u80fd\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<br data-start=\"4373\" data-end=\"4376\" \/>\u3053\u306e\u5834\u5408\u3001WebRTC \u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001VPN IP \u306e\u307f\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002.<\/p>\n<h3 id=\"4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-firewall-%d8%a8%d8%b1%d8%a7%db%8c-%d8%a8%d9%84%d8%a7%da%a9-webrtc\" data-start=\"4450\" data-end=\"4496\">4. \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066WebRTC\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b<\/h3>\n<p data-start=\"4497\" data-end=\"4583\">\u3088\u308a\u9ad8\u5ea6\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066 WebRTC \u30dd\u30fc\u30c8\u3068\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002.<\/p>\n<p data-start=\"4585\" data-end=\"4601\">\u305f\u3068\u3048\u3070\u3001Windows \u306e\u5834\u5408:<\/p>\n<ul data-start=\"4602\" data-end=\"4675\">\n<li data-start=\"4602\" data-end=\"4624\">\n<p data-start=\"4604\" data-end=\"4624\">STUN\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b<\/p>\n<\/li>\n<li data-start=\"4625\" data-end=\"4642\">\n<p data-start=\"4627\" data-end=\"4642\">UDP\u30d6\u30ed\u30c3\u30af3478<\/p>\n<\/li>\n<li data-start=\"4643\" data-end=\"4675\">\n<p data-start=\"4645\" data-end=\"4675\">\u30d4\u30a2\u30c4\u30fc\u30d4\u30a2\u901a\u4fe1\u3092\u9632\u6b62\u3059\u308b<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4677\" data-end=\"4722\" \/>\n<h2 id=\"%da%86%da%af%d9%88%d9%86%d9%87-%d9%85%d8%b7%d9%85%d8%a6%d9%86-%d8%b4%d9%88%db%8c%d9%85-%d9%87%db%8c%da%86-%d9%86%d8%b4%d8%aa%db%8c-%d9%86%d8%af%d8%a7%d8%b1%db%8c%d9%85%d8%9f\" data-start=\"4781\" data-end=\"4820\">\u6f0f\u308c\u304c\u306a\u3044\u3053\u3068\u3092\u3069\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b?<\/h2>\n<p data-start=\"4821\" data-end=\"4864\">\u8a2d\u5b9a\u3092\u9069\u7528\u3057\u305f\u5f8c\u3001\u6b21\u306e\u70b9\u3092\u30c6\u30b9\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"%d8%aa%d8%b3%d8%aa-webrtc\" data-start=\"4866\" data-end=\"4881\">WebRTC \u30c6\u30b9\u30c8:<\/h3>\n<p data-start=\"4882\" data-end=\"4951\">\u30d6\u30e9\u30a6\u30b6\u3067\u30c6\u30b9\u30c8 \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3057\u3001\u5b9f\u969b\u306e IP \u304c\u8868\u793a\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/p>\n<h3 id=\"%d8%aa%d8%b3%d8%aa-dns\" data-start=\"4953\" data-end=\"4965\">DNS\u30c6\u30b9\u30c8:<\/h3>\n<p data-start=\"4966\" data-end=\"5003\">VPN \u30b5\u30fc\u30d0\u30fc\u306e DNS \u306e\u307f\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002.<\/p>\n<h3 id=\"%d8%aa%d8%b3%d8%aa-ipv6\" data-start=\"5005\" data-end=\"5018\">IPv6 \u30c6\u30b9\u30c8:<\/h3>\n<p data-start=\"5019\" data-end=\"5068\">IPv6 \u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u3001IP \u30d0\u30fc\u30b8\u30e7\u30f3 6 \u306f\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3002.<\/p>\n<p data-start=\"5070\" data-end=\"5163\">\u5404\u30c6\u30b9\u30c8\u3067\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u304c\u8868\u793a\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u307e\u3060\u4fee\u6b63\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u3001\u8a2d\u5b9a\u3092\u4fee\u6b63\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<hr data-start=\"5165\" data-end=\"5210\" \/>\n<h2 id=\"%d8%ac%d9%85%d8%b9%d8%a8%d9%86%d8%af%db%8c\" data-start=\"5212\" data-end=\"5226\">\u7d50\u8ad6<\/h2>\n<p data-start=\"5227\" data-end=\"5429\">\u30aa\u30f3\u30e9\u30a4\u30f3\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u7dad\u6301\u3059\u308b\u306b\u306f\u3001VPN \u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002.<br data-start=\"5288\" data-end=\"5291\" \/><strong data-start=\"5291\" data-end=\"5329\">DNS\u30ea\u30fc\u30af\u3068WebRTC\u306f2\u3064\u306e\u5927\u304d\u306a\u30ea\u30b9\u30af\u3067\u3059<\/strong> \u3053\u308c\u306b\u3088\u308a\u3001\u5b9f\u969b\u306eIP\u30a2\u30c9\u30ec\u30b9\u3084\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304c\u660e\u3089\u304b\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u65b9\u6cd5\u3067\u5b8c\u5168\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul data-start=\"5431\" data-end=\"5618\">\n<li data-start=\"5431\" data-end=\"5468\">\n<p data-start=\"5433\" data-end=\"5468\">\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8DNS\u3092\u5099\u3048\u305f\u8a55\u5224\u306e\u826f\u3044VPN\u3092\u4f7f\u7528\u3059\u308b<\/p>\n<\/li>\n<li data-start=\"5469\" data-end=\"5490\">\n<p data-start=\"5471\" data-end=\"5490\">IPv6\u3092\u7121\u52b9\u306b\u3059\u308b<\/p>\n<\/li>\n<li data-start=\"5491\" data-end=\"5508\">\n<p data-start=\"5493\" data-end=\"5508\">\u5b89\u5168\u306aDNS\u306e\u8a2d\u5b9a<\/p>\n<\/li>\n<li data-start=\"5509\" data-end=\"5535\">\n<p data-start=\"5511\" data-end=\"5535\">\u30ad\u30eb\u30b9\u30a4\u30c3\u30c1\u306e\u4f7f\u7528<\/p>\n<\/li>\n<li data-start=\"5536\" data-end=\"5569\">\n<p data-start=\"5538\" data-end=\"5569\">\u30d6\u30e9\u30a6\u30b6\u3067WebRTC\u3092\u7121\u52b9\u306b\u3059\u308b<\/p>\n<\/li>\n<li data-start=\"5570\" data-end=\"5618\">\n<p data-start=\"5572\" data-end=\"5618\">WebRTC\u30ea\u30fc\u30af\u9632\u6b62\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u4f7f\u7528<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5620\" data-end=\"5715\">\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001VPN\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u3001 <strong data-start=\"5676\" data-end=\"5714\">\u3042\u306a\u305f\u306e\u672c\u5f53\u306e\u60c5\u5831\u306f\u6c7a\u3057\u3066\u660e\u304b\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"VPN\u306f\u6700\u9ad8\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u30c4\u30fc\u30eb\u306e\u4e00\u3064\u3068\u3057\u3066\u3001\u65e5\u3005\u5229\u7528\u304c\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u591a\u304f\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u6c17\u3065\u3044\u3066\u3044\u306a\u3044\u306e\u306f\u3001VPN\u3092\u4f7f\u7528\u3057\u3066\u3044\u3066\u3082\u3001\u500b\u4eba\u60c5\u5831\u304c\u6f0f\u6d29\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002.","protected":false},"author":1,"featured_media":17324,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"\u062c\u0644\u0648\u06af\u06cc\u0631\u06cc 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content=\"\u0628\u0647\u062a\u0631\u06cc\u0646 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0646\u0634\u062a DNS \u0648 WebRTC \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 VPN - \u0628\u0644\u0627\u06af ITPiran\" \/>\n<meta property=\"og:description\" content=\"\u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0646\u0634\u062a DNS \u0648 WebRTC \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 VPN \u0622\u0634\u0646\u0627 \u0645\u06cc\u200c\u0634\u0648\u06cc\u062f. \u0627\u06af\u0631 \u0646\u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f IP \u0648\u0627\u0642\u0639\u06cc\u200c\u062a\u0627\u0646 \u0627\u0641\u0634\u0627 \u0634\u0648\u062f\u060c \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627 \u0628\u0647\u062a\u0631\u06cc\u0646 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a\u060c 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