{"id":38554,"date":"2026-06-19T09:55:42","date_gmt":"2026-06-19T13:55:42","guid":{"rendered":"https:\/\/www.lpi.org\/ja\/articles\/bsd%e3%81%8c%e7%af%89%e3%81%84%e3%81%9f%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%8d%e3%83%83%e3%83%88-%e2%80%95-%e3%81%9d%e3%81%ae%e5%8a%9f%e7%b8%be%ef%bc%88%e5%89%8d%e7%b7%a8%ef%bc%89\/"},"modified":"2026-06-19T09:55:42","modified_gmt":"2026-06-19T13:55:42","slug":"code-that-built-the-internet-the-impact-of-bsd-part-1","status":"publish","type":"post","link":"https:\/\/www.lpi.org\/ja\/blog\/2026\/06\/19\/code-that-built-the-internet-the-impact-of-bsd-part-1\/","title":{"rendered":"BSD\u304c\u7bc9\u3044\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u2015 \u305d\u306e\u529f\u7e3e\uff08\u524d\u7de8\uff09"},"content":{"rendered":"<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"16icwmu\" data-start=\"0\" data-end=\"21\">BSD\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u6b69\u307f\uff08\u524d\u7de8\uff09<\/h2>\n<p data-start=\"23\" 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4.3<\/strong>\u306f\u3001<a href=\"https:\/\/www.informationweek.com\/software-services\/what-s-the-greatest-software-ever-written-\">2006\u5e74\u306bInformationWeek\u8a8c\u304b\u3089<\/a>\u300c\u53f2\u4e0a\u6700\u3082\u5049\u5927\u3067\u3001\u4e16\u754c\u306b\u6700\u3082\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u300d\u3068\u307e\u3067\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p data-start=\"2267\" 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Sockets\u306e\u8003\u3048\u65b9\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<hr data-start=\"3099\" data-end=\"3102\" \/>\n<h2 data-section-id=\"5sm3wx\" data-start=\"3104\" data-end=\"3119\">\u901a\u4fe1\u76f8\u624b\u3092\u898b\u3064\u3051\u308b\u306b\u306f\uff1f<\/h2>\n<p data-start=\"3121\" data-end=\"3185\">BSD\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u3001Domain Name System\uff08DNS\uff09\u3092\u5b9f\u7528\u7684\u306a\u4ed5\u7d44\u307f\u3068\u3057\u3066\u666e\u53ca\u3055\u305b\u305f\u7acb\u5f79\u8005\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"3187\" data-end=\"3264\">DNS\u306f\u3001\u4eba\u9593\u304c\u7406\u89e3\u3057\u3084\u3059\u3044<strong data-start=\"3201\" data-end=\"3212\">lpi.org<\/strong>\u306e\u3088\u3046\u306a\u30db\u30b9\u30c8\u540d\u3092\u3001<strong data-start=\"3222\" data-end=\"3239\">65.39.134.140<\/strong>\u306e\u3088\u3046\u306aIP\u30a2\u30c9\u30ec\u30b9\u3078\u5909\u63db\u3059\u308b\u5206\u6563\u578b\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002<\/p>\n<p data-start=\"3266\" data-end=\"3333\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u3042\u3089\u3086\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u901a\u4fe1\u76f8\u624b\u3078\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u3001\u3069\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3078\u554f\u3044\u5408\u308f\u305b\u308c\u3070\u3088\u3044\u304b\u3092\u5224\u65ad\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p data-start=\"3335\" data-end=\"3427\">\u521d\u671f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u3001\u5c0f\u3055\u306a\u753a\u306e\u3088\u3046\u306b\u8ab0\u3082\u304c\u304a\u4e92\u3044\u3092\u77e5\u3063\u3066\u3044\u308b\u4e16\u754c\u3067\u3057\u305f\u3002\u305d\u306e\u305f\u3081\u3001\u7ba1\u7406\u8005\u306f\u5404\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e<strong data-start=\"3391\" data-end=\"3404\">HOSTS.TXT<\/strong>\u30d5\u30a1\u30a4\u30eb\u3078\u30db\u30b9\u30c8\u540d\u3092\u624b\u4f5c\u696d\u3067\u767b\u9332\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p data-start=\"3429\" data-end=\"3504\">\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u73fe\u5728\u3067\u3082\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u901a\u5e38\u306f\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30a2\u30c9\u30ec\u30b9\u3060\u3051\u3092\u7ba1\u7406\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30db\u30b9\u30c8\u540d\u306e\u89e3\u6c7a\u306fDNS\u304c\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p data-start=\"3506\" data-end=\"3616\">DNS\u306f\u975e\u5e38\u306b\u8907\u96d1\u306a\u4ed5\u7d44\u307f\u3067\u3059\u30021983\u5e74\u306b\u516c\u958b\u3055\u308c\u305fDNS\u4ed5\u69d8\uff08<a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc881\">RFC 881<\/a>\u3001<a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc882\">RFC 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