{"id":116222,"date":"2025-10-01T10:00:20","date_gmt":"2025-10-01T03:00:20","guid":{"rendered":"https:\/\/wp.eastgate-software.com\/?p=116222"},"modified":"2026-04-01T15:22:03","modified_gmt":"2026-04-01T08:22:03","slug":"what-is-a-domain-controller-definition-and-roles","status":"publish","type":"post","link":"https:\/\/wp.eastgate-software.com\/jp\/what-is-a-domain-controller-definition-and-roles\/","title":{"rendered":"\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3068\u306f\uff1f\u5b9a\u7fa9\u3068\u5f79\u5272"},"content":{"rendered":"<p><b><span data-contrast=\"auto\">\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9<\/span><\/b><span data-contrast=\"auto\"> DC\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c9\u30e1\u30a4\u30f3\u5185\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a8d\u8a3c\u3001\u627f\u8a8d\u3001\u304a\u3088\u3073\u30c7\u30d0\u30a4\u30b9\u3068\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30dd\u30ea\u30b7\u30fc\u9069\u7528\u3092\u62c5\u3046\u5c02\u7528\u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002Microsoft Windows\u74b0\u5883\u3067\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306fActive Directory\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u3092\u5f62\u6210\u3057\u307e\u3059\u3002 <\/span><span data-contrast=\"auto\">\u30ed\u30b0\u30a4\u30f3\u3092\u691c\u8a3c\u3057\u3001\u30b0\u30eb\u30fc\u30d7\u30dd\u30ea\u30b7\u30fc\u3092\u7ba1\u7406\u3057\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c7\u30fc\u30bf\u3092\u8907\u88fd\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002Windows\u4ee5\u5916\u306e\u30b7\u30b9\u30c6\u30e0\uff08<\/span><span data-contrast=\"auto\">\u305f\u3068\u3048\u3070\u3001Samba\u3001FreeIPA \u306a\u3069\u306e\u30c9\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u3001\u7570\u6a5f\u7a2e\u74b0\u5883\u3067\u540c\u69d8\u306e\u30c9\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u3067\u306f\u3001\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3\u7ba1\u7406\u306e\u96c6\u4e2d\u5316\u3001\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u9069\u7528\u3001\u305d\u3057\u3066\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4fe1\u983c\u3067\u304d\u308b\u57fa\u76e4\u306e\u63d0\u4f9b\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u60c5\u5831\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b0\u30eb\u30fc\u30d7\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u30dd\u30ea\u30b7\u30fc\u3001\u305d\u3057\u3066\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u306b\u95a2\u3059\u308b\u300c\u771f\u5b9f\u306e\u6e90\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30c9\u30e1\u30a4\u30f3\u3092\u63a1\u7528\u3059\u308b\u7d44\u7e54\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3066\u3001 <\/span><span style=\"color: #4970ae\"><a style=\"color: #4970ae\" href=\"https:\/\/wp.eastgate-software.com\/jp\/edge-fog-and-cloud-computing-key-comparisons\/\"><b>\u30af\u30e9\u30a6\u30c9<\/b><\/a><\/span><span data-contrast=\"auto\">, <\/span><span style=\"color: #4970ae\"><a style=\"color: #4970ae\" href=\"https:\/\/wp.eastgate-software.com\/jp\/top-benefits-of-zero-trust-security-why-businesses-need-this\/\"><b>\u30bc\u30ed\u30c8\u30e9\u30b9\u30c8<\/b><\/a><\/span><span data-contrast=\"auto\">, \u3001\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3\u30d5\u30a1\u30fc\u30b9\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30e2\u30c7\u30eb\u3092\u7406\u89e3\u3057\u3001<\/span><span data-contrast=\"auto\">g \u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3068\u306f\u4f55\u304b<\/span><span data-contrast=\"auto\"> \u3069\u306e\u3088\u3046\u306b\u9032\u5316\u3057\u3066\u3044\u304f\u304b\u306f\u3001IT \u306e\u610f\u601d\u6c7a\u5b9a\u8005\u306b\u3068\u3063\u3066\u3082\u30d3\u30b8\u30cd\u30b9 \u30ea\u30fc\u30c0\u30fc\u306b\u3068\u3063\u3066\u3082\u91cd\u8981\u3067\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">In 2026, <\/span><span style=\"color: #4970ae\"><a style=\"color: #4970ae\" href=\"https:\/\/learn.microsoft.com\/en-us\/windows-server\/get-started\/whats-new-windows-server-2025?\"><b>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8<\/b><\/a> <\/span><span data-contrast=\"auto\">Windows Server\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u6a5f\u80fd\u5f37\u5316\u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u306e32KB\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30da\u30fc\u30b8\u306e\u30b5\u30dd\u30fc\u30c8\u3001\u30b9\u30ad\u30fc\u30de\u4fee\u5fa9\u6a5f\u80fd\u306e\u5f37\u5316\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u306e\u76e3\u67fb\u6a5f\u80fd\u306e\u5f37\u5316\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u65b0\u6a5f\u80fd\u304c\u5c0e\u5165\u3055\u308c\u305f\u3068\u3057\u3066\u3082\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3001\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7af6\u5408\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8106\u5f31\u6027\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u6226\u7565\u7684\u306b\u614e\u91cd\u306b\u5c0e\u5165\u304a\u3088\u3073\u7ba1\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h2><span style=\"color: #4970ae\"><b>\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u30b3\u30a2\u30ed\u30fc\u30eb\u3068\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/b>\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">\u8349\u3078<\/span><span data-contrast=\"auto\">\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u4f55\u3092\u3059\u308b\u304b\u306f\u3001\u2019<\/span><span data-contrast=\"auto\">\u4e3b\u8981\u306a\u5f79\u5272\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3001\u304a\u3088\u3073\u30b5\u30dd\u30fc\u30c8 \u30b5\u30fc\u30d3\u30b9\u3092\u8abf\u3079\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h3><span style=\"color: #4970ae\">\u4e3b\u306a\u5f79\u5272\u3068\u30b5\u30fc\u30d3\u30b9\u00a0<\/span><\/h3>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u8a8d\u8a3c\u3068\u627f\u8a8d<\/span><\/b><span data-contrast=\"auto\">DC \u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u8cc7\u683c\u60c5\u5831 (Kerberos\u3001NTLM \u306a\u3069) \u3092\u691c\u8a3c\u3057\u3001\u30b0\u30eb\u30fc\u30d7 \u30e1\u30f3\u30d0\u30fc\u30b7\u30c3\u30d7\u307e\u305f\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30dd\u30ea\u30b7\u30fc\u306b\u57fa\u3065\u3044\u3066\u30e6\u30fc\u30b6\u30fc\u304c\u30ea\u30bd\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30b5\u30fc\u30d3\u30b9<\/span><\/b><span data-contrast=\"auto\">: Active Directory \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 (AD DS) \u3092\u30db\u30b9\u30c8\u3057\u3001\u30e6\u30fc\u30b6\u30fc \u30a2\u30ab\u30a6\u30f3\u30c8\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc \u30a2\u30ab\u30a6\u30f3\u30c8\u3001\u7d44\u7e54\u5358\u4f4d (OU)\u3001\u30b0\u30eb\u30fc\u30d7 \u30dd\u30ea\u30b7\u30fc\u3001\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9\u3001\u304a\u3088\u3073\u305d\u306e\u4ed6\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30b0\u30eb\u30fc\u30d7\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528<\/span><\/b><span data-contrast=\"auto\">DC \u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306b\u53c2\u52a0\u3057\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u306e GPO (\u30b0\u30eb\u30fc\u30d7 \u30dd\u30ea\u30b7\u30fc \u30aa\u30d6\u30b8\u30a7\u30af\u30c8) \u3092\u914d\u5e03\u304a\u3088\u3073\u9069\u7528\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u5c55\u958b\u3001\u304a\u3088\u3073\u69cb\u6210\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u30d5\u30a9\u30fc\u30eb\u30c8\u30c8\u30ec\u30e9\u30f3\u30b9<\/span><\/b><span data-contrast=\"auto\">: \u30de\u30eb\u30c1\u30c9\u30e1\u30a4\u30f3\u307e\u305f\u306f\u30de\u30eb\u30c1\u30b5\u30a4\u30c8\u74b0\u5883\u3067\u306f\u3001\u30c9\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u5909\u66f4\u3092\u8907\u88fd\u3057\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u5168\u4f53\u306e\u4e00\u8cab\u6027\u3068\u5fa9\u5143\u529b\u3092\u7dad\u6301\u3057\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"5\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">DNS\u3068\u540d\u524d\u89e3\u6c7a\u306e\u30b5\u30dd\u30fc\u30c8<\/span><\/b><span data-contrast=\"auto\">: \u591a\u304f\u306e\u5834\u5408\u3001DC \u306f\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u89e3\u6c7a\u3057\u3001LDAP \u53c2\u7167\u3084\u30b5\u30fc\u30d3\u30b9 \u30ed\u30b1\u30fc\u30b7\u30e7\u30f3 (SRV) \u30ec\u30b3\u30fc\u30c9\u3092\u5bb9\u6613\u306b\u3059\u308b\u305f\u3081\u306b DNS \u3068\u7d71\u5408\u3055\u308c\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3><span style=\"color: #4970ae\">\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3068\u5236\u9650\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u5404\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u6700\u5927 <\/span><span style=\"color: #4970ae\"><a style=\"color: #4970ae\" href=\"https:\/\/learn.microsoft.com\/en-us\/windows-server\/identity\/ad-ds\/plan\/active-directory-domain-services-maximum-limits\"><b>\u7d0421\u51045000\u4e07\u500b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/b><\/a><\/span><span data-contrast=\"auto\"> over its lifetime (across all partitions) per Microsoft\u2019s AD DS scaling documentation. Upgrades to Windows Server 2026 introduce the ability to use 32k database pages, allowing larger multivalued attributes (up to ~3,200 values) and greater flexibility\u2014though enabling 32k pages requires all DCs in the forest to support it. <\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6539\u5584\u304c\u898b\u3089\u308c\u308b\u3082\u306e\u306e\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u4f9d\u7136\u3068\u3057\u3066\u91cd\u8981\u306a\u30ce\u30fc\u30c9\u3067\u3042\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u518d\u8d77\u52d5\u3067\u3055\u3048\u30ea\u30b9\u30af\u3092\u3082\u305f\u3089\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u4f8b\u3048\u3070\u3001Microsoft<\/span> <span data-contrast=\"auto\">\u6700\u8fd1\u8b66\u544a\u3057\u305f <\/span><span style=\"color: #4970ae\"><a style=\"color: #4970ae\" href=\"https:\/\/www.networkworld.com\/article\/3961918\/windows-server-2025-domain-controllers-may-lose-connectivity-after-reboot-says-microsoft.html?\"><b>Windows Server 2026<\/b><\/a><\/span><span data-contrast=\"auto\"> \u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u6b63\u3057\u304f\u5fa9\u5143\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u518d\u8d77\u52d5\u5f8c\u306b\u9069\u5207\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3092\u5931\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001DC\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3067\u3042\u3063\u3066\u3082\u3001\u69cb\u6210\u30df\u30b9\u3084\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306e\u554f\u984c\u304c\u53ef\u7528\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3092\u5982\u5b9f\u306b\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h2><span style=\"color: #4970ae\"><b>\u73fe\u4ee3\u306e\u74b0\u5883\u3067\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u91cd\u8981\u306a\u7406\u7531<\/b>\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">\u5909\u5316\u3059\u308bIT\u74b0\u5883\uff08\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30af\u30e9\u30a6\u30c9\u3001\u30bc\u30ed\u30c8\u30e9\u30b9\u30c8\u3001\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3\u30d5\u30a1\u30fc\u30b9\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff09\u306b\u304a\u3044\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u9032\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u304c\u9032\u5316\u3059\u308b\u7406\u7531\u3092\u7406\u89e3\u3059\u308b <\/span><span data-contrast=\"auto\">\u95a2\u9023\u6027\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u3067\u3001\u30ea\u30fc\u30c0\u30fc\u306f\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u8fd1\u4ee3\u5316\u306e\u6c7a\u5b9a\u3092\u4e0b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h3><span style=\"color: #4970ae\">\u96c6\u4e2d\u578bID\u304a\u3088\u3073\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306fID\u7ba1\u7406\u3092\u4e00\u5143\u5316\u3057\u3001\u4f01\u696d\u306f\u30c9\u30e1\u30a4\u30f3\u5883\u754c\u5185\u3067\u6700\u5c0f\u6a29\u9650\u30a2\u30af\u30bb\u30b9\u3001\u6761\u4ef6\u4ed8\u304d\u30dd\u30ea\u30b7\u30fc\u3001\u30b7\u30f3\u30b0\u30eb\u30b5\u30a4\u30f3\u30aa\u30f3\u3092\u9069\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u7d71\u5408\u306b\u3088\u308a\u3001\u7ba1\u7406\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u524a\u6e1b\u3055\u308c\u3001\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u4e00\u8cab\u6027\u304c\u7dad\u6301\u3055\u308c\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h3><span style=\"color: #4970ae\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u591a\u304f\u306e\u898f\u5236\u304a\u3088\u3073\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u67a0\u7d44\u307f\u306f\u3001\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002DC\u306f\u76e3\u67fb\u8a3c\u8de1\u3001\u8a8d\u8a3c\u8a18\u9332\u3001\u30b0\u30eb\u30fc\u30d7\u5909\u66f4\u3001\u30dd\u30ea\u30b7\u30fc\u9069\u7528\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001EMA\u306e\u8abf\u67fb\u3067\u306f\u3001 <\/span><span style=\"color: #4970ae\"><a style=\"color: #4970ae\" href=\"https:\/\/www.cyberdefensemagazine.com\/top-legacy-active-directory\/?\"><b>50%<\/b><\/a><\/span> <span data-contrast=\"auto\">\u7d44\u7e54\u306e<\/span><span data-contrast=\"auto\"> AD \u7279\u6709\u306e\u653b\u6483\u3092\u53d7\u3051\u3066\u304a\u308a\u3001\u305d\u306e\u3046\u3061 40% \u4ee5\u4e0a\u304c\u6210\u529f\u3057\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3067\u3057\u305f\u3002. <\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u30c9\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u4fa1\u5024\u306e\u9ad8\u3044\u30bf\u30fc\u30b2\u30c3\u30c8\u3067\u3042\u308b\u305f\u3081\u3001\u305d\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u30bc\u30ed \u30c8\u30e9\u30b9\u30c8\u3001\u7279\u6a29\u30a2\u30af\u30bb\u30b9\u3001\u5b9a\u671f\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ec\u30d3\u30e5\u30fc\u3001\u5f37\u529b\u306a\u76e3\u8996\u306b\u6e96\u62e0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h3><span style=\"color: #4970ae\">\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u3068\u30af\u30e9\u30a6\u30c9\u306e\u7d71\u5408\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">\u6700\u65b0\u306e\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u3001\u30af\u30e9\u30a6\u30c9ID\u30b7\u30b9\u30c6\u30e0\uff08Azure AD\u3001Entra\u306a\u3069\uff09\u3068\u76f8\u4e92\u904b\u7528\u3067\u304d\u307e\u3059\u3002\u4f01\u696d\u3067\u306f\u3001\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u306eDC\u3092\u904b\u7528\u3057\u306a\u304c\u3089\u3001\u5916\u90e8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3084SaaS\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u306f\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306eID\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u7528\u3057\u3001\u4fe1\u983c\u95a2\u4fc2\u3092\u69cb\u7bc9\u3057\u3066\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9ID\u3092\u5b9f\u73fe\u3059\u308b\u30b1\u30fc\u30b9\u304c\u591a\u304f\u898b\u3089\u308c\u307e\u3059\u3002. <\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u3053\u308c\u3092\u8e0f\u307e\u3048\u3066<\/span><span data-contrast=\"auto\">s\u3001\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 <\/span><span data-contrast=\"auto\">ID \u30d6\u30ea\u30c3\u30b8\u30f3\u30b0\u3001\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u5883\u754c\u3092\u8d8a\u3048\u305f\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u304a\u3088\u3073\u30af\u30e9\u30a6\u30c9 \u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306b\u308f\u305f\u308b\u67d4\u8edf\u306a\u30dd\u30ea\u30b7\u30fc\u9069\u7528\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h2><span style=\"color: #4970ae\"><b>\u8ab2\u984c\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3001\u79fb\u884c\u306e\u8003\u616e\u4e8b\u9805<\/b>\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">\u5927\u898f\u6a21\u306a\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u904b\u7528\u306b\u306f\u3001\u8907\u96d1\u306a\u8981\u7d20\u304c\u4f34\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u8ab2\u984c\u3068\u6226\u7565\u7684\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h3><span style=\"color: #4970ae\">\u8ab2\u984c\u3068\u30ea\u30b9\u30af\u00a0<\/span><\/h3>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3068\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u9045\u5ef6<\/span><\/b><span data-contrast=\"auto\">: DC \u306e\u30b5\u30a4\u30ba\u304c\u9069\u5207\u3067\u306a\u304b\u3063\u305f\u308a\u3001\u5909\u66f4\u91cf\u304c\u591a\u304b\u3063\u305f\u308a\u3001\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30c8\u30dd\u30ed\u30b8\u306e\u69cb\u6210\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u308a\u3059\u308b\u3068\u3001\u9045\u5ef6\u3084\u4e0d\u6574\u5408\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30ec\u30ac\u30b7\u30fc\u30b9\u30ad\u30fc\u30de\u3068\u6280\u8853\u7684\u8ca0\u50b5<\/span><\/b><span data-contrast=\"auto\">: \u7d44\u7e54\u3067\u306f\u6570\u5341\u5e74\u306b\u308f\u305f\u308b\u30b9\u30ad\u30fc\u30de\u62e1\u5f35\u3068\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u304c\u4fdd\u6301\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3084\u30af\u30e9\u30a6\u30c9\u79fb\u884c\u304c\u8907\u96d1\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u9732\u51fa<\/span><\/b><span data-contrast=\"auto\">DC \u306f\u983b\u7e41\u306b\u653b\u6483\u3055\u308c\u308b\u30d9\u30af\u30c8\u30eb\u3067\u3042\u308a\u3001\u4fb5\u5bb3\u3055\u308c\u308b\u3068\u3001\u653b\u6483\u8005\u306f\u30c9\u30e1\u30a4\u30f3\u5168\u4f53\u3078\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u3092\u53d6\u5f97\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559683&quot;:0,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306e\u30ea\u30b9\u30af<\/span><\/b><span data-contrast=\"auto\">: As seen in Windows Server 2026, domain controller upgrades or restarts can create connectivity or firewall misconfiguration issues. <\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3><span style=\"color: #4970ae\">\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u79fb\u884c\u306e\u30d2\u30f3\u30c8\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Effective domain controller management begins with robust architecture and redundancy. Organizations should deploy multiple DCs across sites, optimize replication links, and prevent any single point of failure. As environments mature, leaders should evaluate modernizing their Active Directory databases by enabling the new 32k page format in Windows Server 2026 once the forest is fully prepared. Security should remain paramount. Apply least privilege principles, enforce just-in-time (JIT) access for administrators, and segment management networks to limit exposure.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Operational discipline is equally important. Regular monitoring and auditing, such as logging replication errors, auditing schema changes, and tracking SYSVOL consistency or DNS resolution, helps maintain integrity. Upgrades should be phased in and validated in isolated environments to avoid issues like the firewall profile resets seen in Server 2026 DCs. Finally, enterprises should embrace cloud integration, federating on-prem DCs with services like Azure AD Connect. Also, conditional access policies can be used to build flexible hybrid identity models that align with Zero Trust and modern compliance requirements.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h2><span style=\"color: #4970ae\"><b>\u5b9f\u969b\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u6226\u7565\u7684\u306a\u4f8b<\/b>\u00a0<\/span><\/h2>\n<table data-tablestyle=\"MsoNormalTable\" data-tablelook=\"1696\">\n<tbody>\n<tr>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u30b7\u30ca\u30ea\u30aa<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\/\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u6226\u7565\u7684\u5f71\u97ff<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u30b0\u30ed\u30fc\u30d0\u30eb\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u30ed\u30fc\u30ab\u30eb\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u5099\u3048\u305f\u5927\u9678\u3092\u307e\u305f\u304c\u308b\u5206\u6563DC<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u77ed\u7e2e\u3001\u5730\u57df\u9593\u306e\u8a8d\u8a3c\u306e\u5fe0\u5b9f\u5ea6\u306e\u5411\u4e0a<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u5408\u4f75\u3068\u8cb7\u53ce<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u5f93\u6765\u306eAD\u30d5\u30a9\u30ec\u30b9\u30c8\u306e\u79fb\u884c\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3\u306e\u7d71\u5408<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u8907\u96d1\u306a\u79fb\u884c\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u30ac\u30fc\u30c8\u30ca\u30fc\u304c\u5f15\u7528\u3057\u305fQuest\u306e\u63a8\u5968\u30c4\u30fc\u30eb\u3068\u30d1\u30bf\u30fc\u30f3 <\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u30af\u30e9\u30a6\u30c9\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u5c55\u958b<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">SaaS \u304a\u3088\u3073\u30af\u30e9\u30a6\u30c9 \u30a2\u30d7\u30ea\u5411\u3051\u306e\u30aa\u30f3\u30d7\u30ec\u30df\u30b9 DC + \u30d5\u30a7\u30c7\u30ec\u30fc\u30b7\u30e7\u30f3 Azure AD<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u7d71\u5408\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u6761\u4ef6\u4ed8\u304d\u30a2\u30af\u30bb\u30b9\u3001\u512a\u308c\u305f\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\" data-celllook=\"0\">\n<p><b><span data-contrast=\"auto\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u7701<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:2,&quot;335551620&quot;:2,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u69cb\u6210\u3092\u76e3\u67fb\u30dd\u30ea\u30b7\u30fc\u3068\u7d71\u5408\u3059\u308b\u653f\u5e9c<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<td data-celllook=\"0\">\n<p><span data-contrast=\"auto\">\u5f37\u5316\u3055\u308c\u305f\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3001\u304d\u3081\u7d30\u304b\u306a\u30a2\u30af\u30bb\u30b9\u3001\u76e3\u67fb\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:0,&quot;335551620&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0}\">\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span data-contrast=\"auto\">\u3053\u308c\u3089\u306e\u4f8b\u306f<\/span><span data-contrast=\"auto\"> \u30c9\u30e1\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3068\u306f\u4f55\u304b<\/span><span data-contrast=\"auto\">\u6226\u7565\u7684\u306a\u624b\u6bb5\u3068\u306a\u308a\u307e\u3059\u3002DC \u3092\u614e\u91cd\u306b\u5c0e\u5165\u3059\u308b\u3068\u3001\u5b89\u5168\u306a\u62e1\u5f35\u6027\u3001\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9 ID\u3001\u304a\u3088\u3073\u512a\u308c\u305f\u56de\u5fa9\u529b\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<h2><span style=\"color: #4970ae\"><b>\u611f\u60f3<\/b>\u00a0<\/span><\/h2>\n<p data-start=\"45\" data-end=\"396\"><span style=\"color: #000000\">Domain controllers are no longer just foundational infrastructure\u2014they are critical to securing identities, enabling compliance, and supporting modern hybrid IT environments. 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