{"id":3838,"date":"2026-03-08T00:45:53","date_gmt":"2026-03-07T15:45:53","guid":{"rendered":"https:\/\/kiwamaqs.com\/weblog\/?p=3838"},"modified":"2026-03-08T00:45:56","modified_gmt":"2026-03-07T15:45:56","slug":"coredns","status":"publish","type":"post","link":"https:\/\/kiwamaqs.com\/weblog\/coredns\/","title":{"rendered":"CoreDNS\u3067\u81ea\u5b85LAN\u30c9\u30e1\u30a4\u30f3\u3092\u4f5c\u308b"},"content":{"rendered":"\n

\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001IP\u30a2\u30c9\u30ec\u30b9\u3067\u306e\u63a5\u7d9a\u306b\u4e0d\u4fbf\u3092\u611f\u3058\u308b\u3053\u3068\u304c\u591a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

192.168.0.10<\/p>\n\n\n\n

192.168.0.23<\/p>\n\n\n\n

192.168.0.45<\/p>\n\n\n\n

\u3068\u3044\u3063\u305fIP\u3092\u899a\u3048\u3066\u63a5\u7d9a\u3059\u308b\u306e\u306f\u9762\u5012\u3067\u3059\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u5897\u3048\u308b\u3068\u7ba1\u7406\u304c\u7834\u7dbb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u3055\u3089\u306bVPN\u3092\u4f7f\u3046\u74b0\u5883\u3067\u306f\u3001\u63a5\u7d9a\u5148\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u81ea\u5b85\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306eIP\u304c\u885d\u7a81\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u3053\u3067\u4fbf\u5229\u306a\u306e\u304c \u30ed\u30fc\u30ab\u30ebDNS<\/strong> \u3067\u3059\u3002<\/p>\n\n\n\n

\u4eca\u56de\u306fDNS\u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066 BIND\u3067\u306f\u306a\u304fCoreDNS<\/strong> \u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u7406\u7531\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001<\/p>\n\n\n\n

\u8a2d\u5b9a\u304c\u5727\u5012\u7684\u306b\u7c21\u5358\u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n

BIND\u306f\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3084\u30be\u30fc\u30f3\u30d5\u30a1\u30a4\u30eb\u304c\u8907\u6570\u5fc5\u8981\u3067\u3059\u304c\u3001CoreDNS\u306a\u3089\u57fa\u672c\u7684\u306b1\u30d5\u30a1\u30a4\u30eb\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

\u60f3\u5b9a\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210<\/strong><\/h1>\n\n\n\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u6210\u3092\u4f8b\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

192.168.0.X : DNS\u30b5\u30fc\u30d0\u30fc<\/p>\n\n\n\n

192.168.0.Y : \u30b5\u30fc\u30d0\u30fcY<\/p>\n\n\n\n

192.168.0.Z : \u30b5\u30fc\u30d0\u30fcZ<\/p>\n\n\n\n

\u4f5c\u6210\u3059\u308b\u30c9\u30e1\u30a4\u30f3<\/p>\n\n\n\n

y.example.com \u2192 \u30b5\u30fc\u30d0\u30fcY<\/p>\n\n\n\n

z.example.com \u2192 \u30b5\u30fc\u30d0\u30fcZ<\/p>\n\n\n\n

\u306a\u304a\u3053\u306e\u8a18\u4e8b\u3067\u306fIP\u30a2\u30c9\u30ec\u30b9\u306e\u672b\u5c3e\u3092<\/p>\n\n\n\n

X \/ Y \/ Z<\/p>\n\n\n\n

\u3068\u3044\u3046\u8a18\u53f7\u3067\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u5b9f\u969b\u306e\u74b0\u5883\u3067\u306f\u4efb\u610f\u306e\u6570\u5024\u306b\u7f6e\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

\n\n\n\n

CoreDNS\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/strong><\/h1>\n\n\n\n

Mac\u306e\u5834\u5408\u306fHomebrew\u3067\u7c21\u5358\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

brew install coredns<\/p>\n\n\n\n

\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u78ba\u8a8d<\/p>\n\n\n\n

coredns -version<\/p>\n\n\n\n

\u4f8b<\/p>\n\n\n\n

CoreDNS-1.14.x<\/p>\n\n\n\n

darwin\/amd64<\/p>\n\n\n\n

\u901a\u5e38\u30d0\u30a4\u30ca\u30ea\u306f\u6b21\u306e\u5834\u6240\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

\/usr\/local\/bin\/coredns<\/p>\n\n\n\n

\n\n\n\n

\u8a2d\u5b9a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210<\/strong><\/h1>\n\n\n\n

CoreDNS\u306e\u8a2d\u5b9a\u7528\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

mkdir ~\/coredns<\/p>\n\n\n\n

cd ~\/coredns<\/p>\n\n\n\n

\n\n\n\n

Corefile\u3092\u4f5c\u6210<\/strong><\/h1>\n\n\n\n

CoreDNS\u306e\u8a2d\u5b9a\u306f Corefile<\/strong> \u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

nano ~\/coredns\/Corefile<\/p>\n\n\n\n

\u5185\u5bb9<\/p>\n\n\n\n

.:53 {<\/p>\n\n\n\n

hosts {<\/p>\n\n\n\n

192.168.0.Y y.example.com<\/p>\n\n\n\n

192.168.0.Z z.example.com<\/p>\n\n\n\n

fallthrough<\/p>\n\n\n\n

}<\/p>\n\n\n\n

forward . 1.1.1.1 8.8.8.8<\/p>\n\n\n\n

cache 3600<\/p>\n\n\n\n

log<\/p>\n\n\n\n

}<\/p>\n\n\n\n

\n\n\n\n

\u3053\u306e\u8a2d\u5b9a\u306e\u610f\u5473<\/strong><\/h1>\n\n\n\n

hosts \u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f<\/p>\n\n\n\n

y.example.com \u2192 192.168.0.Y<\/p>\n\n\n\n

z.example.com \u2192 192.168.0.Z<\/p>\n\n\n\n

\u3068\u3044\u3046\u540d\u524d\u89e3\u6c7a\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

fallthrough \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001<\/p>\n\n\n\n

hosts\u306b\u306a\u3044\u554f\u3044\u5408\u308f\u305b\u306f\u6b21\u306eDNS\u51e6\u7406\u3078\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

forward . 1.1.1.1 8.8.8.8<\/p>\n\n\n\n

\u306f\u3001\u5916\u90e8\u306eDNS\u554f\u3044\u5408\u308f\u305b\u3092<\/p>\n\n\n\n

Cloudflare DNS<\/p>\n\n\n\n

Google DNS<\/p>\n\n\n\n

\u306b\u8ee2\u9001\u3059\u308b\u8a2d\u5b9a\u3067\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

CoreDNS\u3092\u8d77\u52d5<\/strong><\/h1>\n\n\n\n

\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067DNS\u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

sudo coredns -conf ~\/coredns\/Corefile<\/p>\n\n\n\n

\u6b63\u5e38\u306b\u8d77\u52d5\u3059\u308b\u3068\u6b21\u306e\u3088\u3046\u306a\u8868\u793a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

.:53<\/p>\n\n\n\n

CoreDNS-1.14.x<\/p>\n\n\n\n

\u3053\u308c\u3067DNS\u30b5\u30fc\u30d0\u30fc\u304c\u30dd\u30fc\u30c853\u3067\u5f85\u3061\u53d7\u3051\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

\u52d5\u4f5c\u78ba\u8a8d<\/strong><\/h1>\n\n\n\n

DNS\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u3057\u304f\u52d5\u3044\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

dig @127.0.0.1 y.example.com<\/p>\n\n\n\n

\u6210\u529f\u4f8b<\/p>\n\n\n\n

ANSWER SECTION<\/p>\n\n\n\n

y.example.com IN A 192.168.0.Y<\/p>\n\n\n\n

\n\n\n\n

Mac\u306eDNS\u3092\u5909\u66f4<\/strong><\/h1>\n\n\n\n

\u6b21\u306bMac\u304c\u3053\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u3046\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u30b7\u30b9\u30c6\u30e0\u8a2d\u5b9a<\/p>\n\n\n\n

\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/p>\n\n\n\n

\u4f7f\u7528\u4e2d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/p>\n\n\n\n

DNS<\/p>\n\n\n\n

DNS\u30b5\u30fc\u30d0\u30fc\u306b<\/p>\n\n\n\n

192.168.0.X<\/p>\n\n\n\n

\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u78ba\u8a8d<\/p>\n\n\n\n

scutil \u2013dns | grep nameserver<\/p>\n\n\n\n

\u4f8b<\/p>\n\n\n\n

nameserver : 192.168.0.X<\/p>\n\n\n\n

\n\n\n\n

\u63a5\u7d9a\u30c6\u30b9\u30c8<\/strong><\/h1>\n\n\n\n

\u3053\u308c\u3067IP\u3092\u4f7f\u308f\u305a\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

ping y.example.com<\/p>\n\n\n\n

\u307e\u305f\u306f<\/p>\n\n\n\n

ssh y.example.com<\/p>\n\n\n\n

Web\u30b5\u30fc\u30d3\u30b9\u306e\u5834\u5408<\/p>\n\n\n\n

http:\/\/y.example.com:\u30dd\u30fc\u30c8\u756a\u53f7<\/p>\n\n\n\n

\u3053\u306e\u65b9\u6cd5\u3067<\/p>\n\n\n\n

Web\u30b5\u30fc\u30d0\u30fc<\/p>\n\n\n\n

SSH<\/p>\n\n\n\n

VNC<\/p>\n\n\n\n

\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b5\u30fc\u30d0\u30fc<\/p>\n\n\n\n

\u306a\u3069\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

VPN\u74b0\u5883\u3067\u3082\u5229\u7528\u3067\u304d\u308b<\/strong><\/h1>\n\n\n\n

WireGuard\u306a\u3069\u306eVPN\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f<\/p>\n\n\n\n

DNS = 192.168.0.X<\/p>\n\n\n\n

\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u5916\u51fa\u5148\u304b\u3089\u3067\u3082<\/p>\n\n\n\n

ssh y.example.com<\/p>\n\n\n\n

vnc y.example.com<\/p>\n\n\n\n

http:\/\/y.example.com:\u30dd\u30fc\u30c8\u756a\u53f7<\/p>\n\n\n\n

\u306e\u3088\u3046\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

BIND\u3088\u308aCoreDNS\u304c\u7c21\u5358\u306a\u7406\u7531<\/strong><\/h1>\n\n\n\n

BIND\u306e\u5834\u5408<\/p>\n\n\n\n

named.conf<\/p>\n\n\n\n

zone\u30d5\u30a1\u30a4\u30eb<\/p>\n\n\n\n

reverse DNS<\/p>\n\n\n\n

\u306a\u3069\u8907\u6570\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n

CoreDNS\u306a\u3089<\/p>\n\n\n\n

hosts<\/p>\n\n\n\n

IP \u30c9\u30e1\u30a4\u30f3<\/p>\n\n\n\n

\u3068\u3044\u3046\u5f62\u3067\u66f8\u304f\u3060\u3051\u306a\u306e\u3067\u3001\u8a2d\u5b9a\u304c\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

\u77ed\u3044\u540d\u524d\u3067\u3082\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/strong><\/h1>\n\n\n\n

Corefile\u3092\u6b21\u306e\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

192.168.0.Y Y y.example.com<\/p>\n\n\n\n

192.168.0.Z Z z.example.com<\/p>\n\n\n\n

\u3053\u3046\u3059\u308b\u3068<\/p>\n\n\n\n

ssh Y<\/p>\n\n\n\n

http:\/\/Y:\u30dd\u30fc\u30c8\u756a\u53f7<\/p>\n\n\n\n

\u306e\u3088\u3046\u306a\u77ed\u3044\u540d\u524d\u3067\u3082\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

CoreDNS\u3092\u81ea\u52d5\u8d77\u52d5\u3059\u308b<\/strong><\/h1>\n\n\n\n

Mac\u3067\u306fLaunchAgent\u3092\u4f7f\u3046\u3068\u81ea\u52d5\u8d77\u52d5\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

nano ~\/Library\/LaunchAgents\/com.coredns.plist<\/p>\n\n\n\n

\u8a2d\u5b9a\u5185\u5bb9<\/p>\n\n\n\n

Label com.coredns<\/p>\n\n\n\n

ProgramArguments<\/p>\n\n\n\n

\/usr\/local\/bin\/coredns<\/p>\n\n\n\n

-conf<\/p>\n\n\n\n

\/Users\/username\/coredns\/Corefile<\/p>\n\n\n\n

RunAtLoad true<\/p>\n\n\n\n

\u8aad\u307f\u8fbc\u307f<\/p>\n\n\n\n

launchctl load ~\/Library\/LaunchAgents\/com.coredns.plist<\/p>\n\n\n\n

\u3053\u308c\u3067<\/p>\n\n\n\n

Mac\u8d77\u52d5<\/p>\n\n\n\n

\u2193<\/p>\n\n\n\n

CoreDNS\u8d77\u52d5<\/p>\n\n\n\n

\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

\u307e\u3068\u3081<\/strong><\/h1>\n\n\n\n

CoreDNS\u3092\u4f7f\u3046\u3068<\/p>\n\n\n\n

y.example.com<\/p>\n\n\n\n

z.example.com<\/p>\n\n\n\n

nas.example.com<\/p>\n\n\n\n

gpu.example.com<\/p>\n\n\n\n

\u306e\u3088\u3046\u306a \u81ea\u5b85\u7528\u30c9\u30e1\u30a4\u30f3\u74b0\u5883<\/strong>\u3092\u7c21\u5358\u306b\u4f5c\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

BIND\u3068\u6bd4\u3079\u3066<\/p>\n\n\n\n

\u8a2d\u5b9a\u304c\u7c21\u5358<\/p>\n\n\n\n

\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c8\u304c\u7c21\u5358<\/p>\n\n\n\n

\u7ba1\u7406\u304c\u30b7\u30f3\u30d7\u30eb<\/p>\n\n\n\n

\u3068\u3044\u3046\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3084\u30db\u30fc\u30e0\u30e9\u30dc\u74b0\u5883\u3092\u69cb\u7bc9\u3059\u308b\u5834\u5408\u3001\u975e\u5e38\u306b\u304a\u3059\u3059\u3081\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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