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<strong>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/strong>-\u30eb\u30fc\u30eb\u304c\u9069\u7528\u3055\u308c\u308b\u3002<\/p>\n\n<h2>\u30b5\u30d6\u30cd\u30c3\u30c8\u8a2d\u8a08\u3068IP\u30d7\u30e9\u30f3\u30cb\u30f3\u30b0\u306e\u8a73\u7d30<\/h2>\n<p>\u79c1\u306f\u3001\u5f8c\u3067\u76f4\u611f\u7684\u306b\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u660e\u78ba\u306a\u547d\u540d\u898f\u5247\u3068\u756a\u53f7\u4ed8\u3051\u898f\u5247\u3067\u4f5c\u696d\u3057\u3066\u3044\u308b\u3002\u5404\u30be\u30fc\u30f3\uff08\u4f8b\uff1aapp\u3001db\u3001mgmt\u3001edge\uff09\u306b\u306f\u3001\u56fa\u5b9a\u756a\u53f7\u306e\u7bc4\u56f2\u3068\u6587\u66f8\u5316\u3055\u308c\u305f\u6a19\u6e96\u30b5\u30a4\u30ba\u304c\u4e0e\u3048\u3089\u308c\u3066\u3044\u308b\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u9593\u306e\u30d0\u30c3\u30d5\u30a1\u9818\u57df\u306f\u3001\u756a\u53f7\u3092\u5909\u66f4\u305b\u305a\u306b\u62e1\u5f35\u3067\u304d\u308b\u3088\u3046\u306b\u610f\u56f3\u7684\u306b\u78ba\u4fdd\u3057\u3066\u3044\u308b\u3002\u30b5\u30fc\u30d3\u30b9\u304c\u6c34\u5e73\u65b9\u5411\u306b\u62e1\u5f35\u3055\u308c\u308b\u5834\u5408\u3001\u79c1\u306f1\u3064\u306e\u5927\u304d\u306a\/22\u3067\u306f\u306a\u304f\u3001\u3044\u304f\u3064\u304b\u306e\/25\u307e\u305f\u306f\/26\u3092\u8a08\u753b\u3059\u308b\u3053\u3068\u3092\u597d\u3080\u3002\u7ba1\u7406\u8005\u30a2\u30af\u30bb\u30b9\u7528\u306e\/28\u306f\u5225\u306b\u7528\u610f\u3057\u3001\u4e00\u8cab\u3057\u3066\u30cf\u30fc\u30c9\u5316\u3057\u3001VPN\u3084bastion\u30db\u30b9\u30c8\u7d4c\u7531\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u5916\u90e8\u306e\u62e0\u70b9\u306b\u63a5\u7d9a\u3059\u308b\u3068\u304d\u306f\u3001\u6700\u521d\u304b\u3089\u660e\u78ba\u3067\u91cd\u8907\u3057\u306a\u3044\u30a8\u30ea\u30a2\u3092\u5b9a\u7fa9\u3057\u3001\u7af6\u5408\u304c\u8d77\u304d\u306a\u3044\u3088\u3046\u306b\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u30fb\u30eb\u30fc\u30c8\u3092\u7279\u5225\u306b\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n\n<h2>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30d6\u30ea\u30c3\u30b8\u3001vSwitch\uff1a\u9069\u5207\u306a\u30e2\u30fc\u30c9<\/h2>\n<p>\u79c1\u306f\u4e3b\u306b3\u3064\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u306b\u6ce8\u76ee\u3057\u3066\u3044\u308b\uff1a <strong>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong> \u8ffd\u52a0\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u3068\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u30a2\u30c9\u30ec\u30b9\u306b\u306fvSwitch\u3092\u3001\u30b2\u30b9\u30c8\u304c\u81ea\u5206\u306e\u30b5\u30fc\u30d0\u30fc\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u5834\u5408\u306f\u30d6\u30ea\u30c3\u30b8\u3092\u3001\u67d4\u8edf\u306a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3068NAT\u306b\u306fvSwitch\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30e2\u30c7\u30eb\u3067\u306f\u3001\u8ffd\u52a0\u30a2\u30c9\u30ec\u30b9\u306f\u30db\u30b9\u30c8\u306e\u30e1\u30a4\u30f3MAC\u306b\u30a2\u30bf\u30c3\u30c1\u3055\u308c\u308b\u3002IPv4\u3068IPv6\u306eIP\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3078\u306e\u30db\u30b9\u30c8\u30eb\u30fc\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u3002vSwitch\u3068\u30de\u30b9\u30ab\u30ec\u30fc\u30c9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30fb\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064VM\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u4e00\u65b9\u3001\u5185\u90e8\u30b5\u30fc\u30d3\u30b9\u306f\u30b7\u30fc\u30eb\u30c9\u3055\u308c\u305f\u307e\u307e\u3068\u306a\u308b\u3002\u3053\u306e\u9078\u629e\u306f\u5f8c\u306e\u52aa\u529b\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u3001 <strong>\u900f\u660e\u6027<\/strong> \u305d\u3057\u3066\u79c1\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u8010\u969c\u5bb3\u6027\u3060\u3002<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30e2\u30fc\u30c9<\/th>\n      <th>\u7528\u9014<\/th>\n      <th>\u524d\u63d0\u6761\u4ef6<\/th>\n      <th>\u30e1\u30ea\u30c3\u30c8<\/th>\n      <th>\u3064\u307e\u305a\u304d\u306e\u5371\u967a<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/td>\n      <td>\u8ffd\u52a0\u30b5\u30d6\u30cd\u30c3\u30c8\u3001\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fcIP<\/td>\n      <td>IP\u8ee2\u9001\u3001\u30db\u30b9\u30c8\u30eb\u30fc\u30c8<\/td>\n      <td>\u660e\u78ba\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u826f\u597d <strong>\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0<\/strong><\/td>\n      <td>\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\/\u30db\u30b9\u30c8\u306e\u30eb\u30fc\u30c8\u3092\u304d\u308c\u3044\u306b\u7dad\u6301\u3059\u308b<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30d6\u30ea\u30c3\u30b8<\/td>\n      <td>\"\u81ea\u793e\u30b5\u30fc\u30d0\u30fc \"\u3068\u3057\u3066\u306e\u30b2\u30b9\u30c8<\/td>\n      <td>IP\u3054\u3068\u306e\u4eee\u60f3MAC<\/td>\n      <td>\u30b2\u30b9\u30c81\u4eba\u5f53\u305f\u308a\u306e\u5b9f\u8cea\u8996\u8a8d\u6027<\/td>\n      <td>\u306eMAC\u7ba1\u7406 <strong>\u30ed\u30dc\u30c3\u30c8<\/strong> \u5fc5\u8981<\/td>\n    <\/tr>\n    <tr>\n      <td>v\u30b9\u30a4\u30c3\u30c1\uff0bNAT<\/td>\n      <td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4ed8\u304d\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8VM<\/td>\n      <td>\u30de\u30b9\u30ab\u30ec\u30fc\u30c9\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/td>\n      <td>\u9ad8\u3044\u5185\u90e8\u65ad\u71b1\u6027<\/td>\n      <td>NAT\u30eb\u30fc\u30eb\u3092\u9069\u5207\u306b\u7dad\u6301\u3059\u308b<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/09\/hetzner_setup_meeting_5827.webp\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30fb\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\uff1a\u30af\u30e9\u30a6\u30c9\u3001\u5c02\u7528\u6a5f\u3001\u30c8\u30e9\u30f3\u30b8\u30b7\u30e7\u30f3<\/h2>\n<p>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u74b0\u5883\u3067\u306f\u3001\u79c1\u306f\u660e\u793a\u7684\u306a\u30eb\u30fc\u30bf\u30fc\u30fb\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4ecb\u3057\u3066\u30af\u30e9\u30a6\u30c9\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u5c02\u7528\u30b5\u30fc\u30d0\u30fc\u3092\u63a5\u7d9a\u3057\u3066\u3044\u308b\u3002\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b8\u30c3\u30c8\u30fb\u30b5\u30d6\u30cd\u30c3\u30c8\u3068\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u30fb\u30eb\u30fc\u30c8\u306b\u3088\u3063\u3066\u3001\u53cc\u65b9\u304c\u5fc5\u8981\u306a\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u307f\u3092\u53c2\u7167\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u306b\u3088\u3063\u3066\u306f\u3001NAT\u3084\u30eb\u30fc\u30c8\u30fb\u30b5\u30d6\u30cd\u30c3\u30c8\u7d4c\u7531\u3067\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u30a8\u30c3\u30b8\u30fb\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u900f\u904e\u7684\u306b\u901a\u904e\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u9ad8\u53ef\u7528\u6027\u306b\u8a2d\u8a08\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3060\u3002\u4f8b\u3048\u3070\u30012\u3064\u306e\u30eb\u30fc\u30bf\u30fcVM\u304c\u4e92\u3044\u306e\u72b6\u614b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u969c\u5bb3\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u5f15\u304d\u7d99\u3050\u3002\u30af\u30e9\u30a6\u30c9\u30d1\u30cd\u30eb\u5185\u306e\u30eb\u30fc\u30c8\u304c\u6b63\u3057\u3044\u3053\u3068\u3001\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u304c\u6709\u52b9\u3067\u3042\u308b\u3053\u3068\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u72b6\u614b\u304c\u4e00\u5b9a\u3067\u3042\u308b\u3053\u3068\u3001ICMP\u3060\u3051\u3067\u306a\u304f\u95a2\u9023\u30dd\u30fc\u30c8\u3082\u30c1\u30a7\u30c3\u30af\u3059\u308b\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046\u3053\u3068\u3002<\/p>\n\n<h2>Linux\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\uff1aifupdown\u3001netplan\u3001systemd-networkd\u3092\u6b63\u3057\u304f\u4f7f\u3046<\/h2>\n<p>Debian\/Ubuntu\u3067ifupdown\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u79c1\u306f\/etc\/network\/interfaces\u307e\u305f\u306f\/etc\/network\/interfaces.d\u306b\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u3001\/etc\/network\/interfaces.d\u306b\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u305f\u307e\u307e\u306b\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u30db\u30b9\u30c8\u30eb\u30fc\u30c8<\/strong> \u6b63\u3057\u3044\u3002\u30db\u30b9\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306b\u306f\/32 (255.255.255.255)\u3092\u4f7f\u3044\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u30dd\u30a4\u30f3\u30c8\u30dd\u30a4\u30f3\u30c8\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30ab\u30fc\u30cd\u30eb\u304c\u8fd1\u96a3\u3092\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002netplan\uff08Ubuntu 18.04\u300120.04\u300122.04\uff09\u3067\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u3059\u3050\u306b\u4e00\u81f4\u3059\u308b\u3088\u3046\u306b\u3001\u30a2\u30c9\u30ec\u30b9\u3001\u30eb\u30fc\u30c8\u3001\u30aa\u30f3\u30ea\u30f3\u30af\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u4ea4\u63db\u3057\u305f\u3089\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u6307\u5b9a\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u4f8b\u3048\u3070eth0\u304b\u3089enp7s0\u306b\u5909\u66f4\u3057\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ab\u30fc\u30c9\u304c\u518d\u3073\u7acb\u3061\u4e0a\u304c\u308b\u3088\u3046\u306b\u3059\u308b\u3002systemd-networkd\u3067\u306f\u3001.network\u3068.netdev\u30d5\u30a1\u30a4\u30eb\u3092\u7ba1\u7406\u3057\u3001\u30b5\u30fc\u30d3\u30b9\u3092\u30ea\u30ed\u30fc\u30c9\u3057\u3066\u3001DNS\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001on-link\u3092\u5e38\u306b\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002 <strong>\u30b3\u30cd\u30af\u30c6\u30a3\u30d3\u30c6\u30a3<\/strong>.<\/p>\n\n<h2>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\uff1aMTU\u3001\u30aa\u30d5\u30ed\u30fc\u30c9\u3001\u30dd\u30ea\u30b7\u30fc\u30fb\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n<p>\u7279\u306bVPN\u3084\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3001\u30c8\u30f3\u30cd\u30eb\u304c\u7d61\u3093\u3067\u304f\u308b\u5834\u5408\u306f\u3001\u30a8\u30f3\u30c9\u30fb\u30c4\u30fc\u30fb\u30a8\u30f3\u30c9\u3067MTU\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u308b\u3002\u5024\u304c\u6b63\u3057\u304f\u306a\u3044\u5834\u5408\u3001\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3084\u30c9\u30ed\u30c3\u30d7\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3067TCP MTU\u30d7\u30ed\u30fc\u30d3\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3057\u3001\u9069\u5207\u306a\u5834\u6240\u306bMSS\u30af\u30e9\u30f3\u30d7\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u63a5\u7d9a\u3092\u5805\u7262\u306b\u4fdd\u3064\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u79c1\u306f\u30aa\u30d5\u30ed\u30fc\u30c9\u6a5f\u80fd\uff08GRO\/LRO\/TSO\uff09\u3092\u610f\u56f3\u7684\u306b\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30cf\u30a4\u30d1\u30fc\u30d0\u30a4\u30b6\u30fc\u3084\u30d1\u30b1\u30c3\u30c8\u8a18\u9332\u3067\u306f\u90e8\u5206\u7684\u306b\u7121\u52b9\u306b\u3057\u307e\u3059\u304c\u3001\u7d14\u7c8b\u306a\u30c7\u30fc\u30bf\u30d1\u30b9\u3067\u306f\u6e2c\u5b9a\u5024\u306b\u5fdc\u3058\u3066\u30aa\u30f3\u306e\u307e\u307e\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u8907\u6570\u306e\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u3084\u5dee\u5225\u5316\u3055\u308c\u305f\u30a4\u30b0\u30ec\u30b9\u30fb\u30dd\u30ea\u30b7\u30fc\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u72ec\u81ea\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30fb\u30c6\u30fc\u30d6\u30eb\u3068IP\u30eb\u30fc\u30eb\u3067\u30dd\u30ea\u30b7\u30fc\u30fb\u30d9\u30fc\u30b9\u30fb\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002\u7279\u5225\u306a\u30eb\u30fc\u30eb\u306f\u3059\u3079\u3066\u6587\u66f8\u5316\u3057\u3001\u5f8c\u306e\u5909\u66f4\u304c\u6c17\u3065\u304b\u306a\u3044\u3046\u3061\u306b\u526f\u4f5c\u7528\u3092\u5f15\u304d\u8d77\u3053\u3055\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002<\/p>\n\n<h2>\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fcIP\u3001\u4eee\u60f3MAC\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306e\u5b9f\u969b<\/h2>\n<p>\u8ffd\u52a0IP\u306b\u3064\u3044\u3066\u306f <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%98%e3%83%83%e3%83%84%e3%83%8a%e3%83%bc%e3%83%bb%e3%83%ad%e3%83%9c%e3%83%83%e3%83%88%e3%83%bb%e3%82%b5%e3%83%bc%e3%83%95%e3%82%a7%e3%82%b9%e3%83%bb%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e7%ae%a1\/\">\u30d8\u30c3\u30c4\u30ca\u30fc\u30ed\u30dc\u30c3\u30c8<\/a> \u30a2\u30c9\u30ec\u30b9\u3054\u3068\u306b <strong>MAC<\/strong> \u3092\u4f5c\u6210\u3057\u3001ARP\u304c\u6b63\u3057\u304f\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u30b2\u30b9\u30c8\u306b\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u305f\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u306f\u3001\u30e1\u30a4\u30f3\u306eMAC\u306f\u30db\u30b9\u30c8\u306b\u6b8b\u308a\u3001\u79c1\u306f\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u660e\u793a\u7684\u306b\u30b2\u30b9\u30c8\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u307e\u3059\u3002\u30d6\u30ea\u30c3\u30b8\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001\u30b2\u30b9\u30c8\u306b\u72ec\u81ea\u306e\u53ef\u8996MAC\u3092\u4e0e\u3048\u3001\u72ec\u7acb\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u3067\u306f\u3001\u3069\u306e\u30de\u30b7\u30f3\u304c\u73fe\u5728IP\u3092\u30a2\u30ca\u30a6\u30f3\u30b9\u3057\u3066\u3044\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u5207\u308a\u66ff\u3048\u6642\u306b\u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8abf\u6574\u3057\u3001\u5fc5\u8981\u3067\u3042\u308c\u3070\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u3059\u3050\u306b\u5230\u7740\u3059\u308b\u3088\u3046\u306bARP\u3092 gratuity \u3057\u307e\u3059\u3002\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3092\u4f7f\u3063\u3066\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5207\u308a\u96e2\u3057\u3001\u5747\u7b49\u306b\u5206\u6563\u3055\u305b\u308b\u3002 <strong>\u7a7a\u5ba4\u72b6\u6cc1<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/09\/hetzner-netzwerksetup-tipps-8043.webp\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>IP\u5207\u308a\u66ff\u3048\u306e\u30af\u30ea\u30fc\u30f3\u8a2d\u8a08<\/h2>\n<p>\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304cARP\/NDP\u7d4c\u7531\u3067IP\u3092\u30a2\u30ca\u30a6\u30f3\u30b9\u3057\u3001\u30d1\u30c3\u30b7\u30d6\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u6c88\u9ed9\u3092\u5b88\u308b\u304b\u3001\u65b0\u3057\u3044\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30de\u30b7\u30f3\u3078\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3092\u7279\u5225\u306b\u5f15\u304d\u51fa\u3057\u307e\u3059\u3002VRRP\u306e\u5b9f\u88c5\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3082\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u79c1\u306f\u5e38\u306b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3001\u8fd1\u96a3\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u53ef\u80fd\u306aARP\u30bf\u30a4\u30e0\u30d5\u30ec\u30fc\u30e0\u3092\u542b\u3080\u76f8\u4e92\u4f5c\u7528\u5168\u4f53\u3092\u30c6\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u91cd\u8981\uff1a\u5207\u308a\u66ff\u3048\u5f8c\u3001\u79c1\u306f\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u5916\u90e8\u306e\u30c6\u30b9\u30c8\u30dd\u30a4\u30f3\u30c8\u306e\u4e21\u65b9\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u6027\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002\u591a\u304f\u306eTCP\u63a5\u7d9a\u3092\u6301\u3064\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u958b\u3044\u3066\u3044\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u304d\u308c\u3044\u306b\u5207\u308c\u308b\u304b\u3001\u3059\u3050\u306b\u518d\u78ba\u7acb\u3055\u308c\u308b\u3088\u3046\u306b\u3001\u77ed\u3044\u7336\u4e88\u671f\u9593\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<h2>IPv6\u306e\u8a2d\u5b9a\u30c7\u30e5\u30a2\u30eb\u30b9\u30bf\u30c3\u30af\u3092\u304d\u308c\u3044\u306b\u5b9f\u88c5\u3059\u308b<\/h2>\n<p>\u79c1\u306fIPv4\u3068\u4e26\u884c\u3057\u3066IPv6\u3092\u30a2\u30af\u30c6\u30a3\u30d6\u5316\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u6700\u65b0\u306eIPv6\u3092\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002 <strong>\u30b3\u30cd\u30af\u30c6\u30a3\u30d3\u30c6\u30a3<\/strong> 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<strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb<\/strong> \u306b\u9054\u3059\u308b\u3002<\/p>\n\n<h2>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a\u30bb\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3001\u30eb\u30fc\u30eb\u3001\u30cf\u30fc\u30c9\u30cb\u30f3\u30b0<\/h2>\n<p>\u79c1\u306f\u3001\u30a2\u30d7\u30ea\u3001\u30c7\u30fc\u30bf\u3001\u7ba1\u7406\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u79fb\u884c\u306a\u3069\u3001\u6a5f\u80fd\u306b\u5fdc\u3058\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u3057\u3001\u660e\u78ba\u306b\u3057\u3066\u3044\u308b\u3002 <strong>ACL<\/strong>.\u5404\u90e8\u7f72\u306f\u5fc5\u8981\u306a\u30a2\u30af\u30bb\u30b9\u3060\u3051\u3092\u53d6\u5f97\u3057\u3001\u7ba1\u7406\u8005\u30a2\u30af\u30bb\u30b9\u306fVPN\u304b\u30d0\u30b9\u30c6\u30a3\u30aa\u30f3\u30db\u30b9\u30c8\u7d4c\u7531\u3067\u884c\u3046\u3002\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3059\u3079\u3066\u306e\u7740\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u305f\u3081\u306b\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u3092\u8a31\u53ef\u3057\u3066\u3044\u308b\u3002SSH\u306f\u3001\u9375\u3001\u30dd\u30fc\u30c8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3001\u30ec\u30fc\u30c8\u5236\u9650\u3001\u30b9\u30ad\u30e3\u30f3\u3092\u7121\u52b9\u306b\u3059\u308b\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30dd\u30fc\u30c8\u30ce\u30c3\u30af\u3092\u4f7f\u3063\u3066\u30bb\u30ad\u30e5\u30a2\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u7ba1\u7406\u3055\u308c\u305f\u65b9\u6cd5\u3067\u5909\u66f4\u3092\u30c6\u30b9\u30c8\u3057\u3001\u3059\u3050\u306b\u6587\u66f8\u5316\u3057\u3001\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u8fc5\u901f\u306b\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3057\u307e\u3059\u3002 <strong>\u64cd\u696d\u4e0a\u306e\u5b89\u5168\u6027<\/strong> \u306f\u9ad8\u6b62\u307e\u308a\u3057\u3066\u3044\u308b\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/09\/hetzner-netzwerk-setup-3982.webp\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30af\u30e9\u30a6\u30c9\u3068\u30db\u30b9\u30c8\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3<\/h2>\n<p>\u79c1\u306f\u30af\u30e9\u30a6\u30c9\u30fb\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u30db\u30b9\u30c8\u30d9\u30fc\u30b9\u306e\u30eb\u30fc\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b\u3002\u524d\u8005\u306f\u57fa\u672c\u7684\u306a\u30a2\u30af\u30bb\u30b9\u3092\u78ba\u5b9f\u306b\u5236\u9650\u3059\u308b\u4e2d\u592e\u30ec\u30a4\u30e4\u30fc\u3092\u63d0\u4f9b\u3057\u3001\u5f8c\u8005\u306f\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u304d\u3081\u7d30\u304b\u304f\u4fdd\u8b77\u3057\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u5316\u3067\u304d\u308b\u3002\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u6a19\u6e96\u30dd\u30fc\u30c8\u3068\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u306f\u3001\u3059\u3079\u3066\u306e\u30be\u30fc\u30f3\u3067\u540c\u4e00\u306e\u30eb\u30fc\u30eb\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u79c1\u306f\u30a4\u30b0\u30ec\u30b9\u30fb\u30dd\u30ea\u30b7\u30fc\u3092\u5236\u9650\u7684\u306b\u4fdd\u3061\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u304b\u5230\u9054\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u74b0\u5883\u3067\u306f\u3001\u77ed\u671f\u9593\u306e\u30a2\u30af\u30bb\u30b9\u3084\u591a\u8981\u7d20\u4fdd\u8b77\u304c\u53ef\u80fd\u306a\u30b8\u30e3\u30f3\u30d7\u30db\u30b9\u30c8\u3082\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u3092\u8fc5\u901f\u306b\u628a\u63e1\u3057\u3001\u8aa4\u5831\u3092\u6e1b\u3089\u3059\u305f\u3081\u306b\u3001\u30ed\u30b0\u3092\u4e00\u5143\u7684\u306b\u76f8\u95a2\u3055\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<h2>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u5178\u578b\u7684\u306a\u30a8\u30e9\u30fc\u3092\u7d20\u65e9\u304f\u8a8d\u8b58\u3059\u308b<\/h2>\n<p>\u30b9\u30ef\u30c3\u30d7\u5f8c\u306b\u30b5\u30fc\u30d0\u30fc\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u306a\u3044\u5834\u5408\u3001\u79c1\u306f\u307e\u305a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u540d\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u305d\u308c\u3092\u8abf\u6574\u3059\u308b\u3002 <strong>\u69cb\u6210<\/strong> \u306b\u3042\u308b\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u5931\u6557\u3057\u305f\u3089\u3001IP\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u518d\u958b\u3057\u3001\u30db\u30b9\u30c8\u30eb\u30fc\u30c8\u3068\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u30a2\u30c9\u30ec\u30b9\u3001\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3001\u30aa\u30f3\u30ea\u30f3\u30af\u306e\u5165\u529b\u30df\u30b9\u304c\u5230\u9054\u4e0d\u80fd\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u3001\u30b3\u30f3\u30d5\u30a3\u30b0\u3068\u5b9f\u969b\u306e\u30ab\u30fc\u30cd\u30eb\u30eb\u30fc\u30c8\u3092\u6bd4\u8f03\u3059\u308b\u3002\u30d6\u30ea\u30c3\u30b8\u306b\u554f\u984c\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u4eee\u60f3MAC\u3068ARP\u30c6\u30fc\u30d6\u30eb\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u30de\u30c3\u30d4\u30f3\u30b0\u304c\u6b63\u3057\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002var\/log\/syslog\u3001journalctl\u3001dmesg\u306e\u4e0b\u306e\u30ed\u30b0\u306f\u3001\u30c9\u30e9\u30a4\u30d0\u3001DHCP\u30a8\u30e9\u30fc\u3001\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u308b\u3002 <strong>\u30d1\u30c3\u30b1\u30fc\u30b8<\/strong>.<\/p>\n\n<h2>\u4f53\u7cfb\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30d1\u30c3\u30b1\u30fc\u30b8\u8a3a\u65ad<\/h2>\n<ul>\n  <li>\u30ec\u30a4\u30e4\u30c1\u30a7\u30c3\u30af\uff1a\u30ea\u30f3\u30af\u30a2\u30c3\u30d7\u3001\u30b9\u30d4\u30fc\u30c9\/\u30c7\u30e5\u30d7\u30ec\u30c3\u30af\u30b9\u3001VLAN\/\u30d6\u30ea\u30c3\u30b8\u30b9\u30c6\u30fc\u30bf\u30b9\u3001IP\/\u30eb\u30fc\u30c8\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u9806\u3002<\/li>\n  <li>\u5b9f\u969b\u3068\u76ee\u6a19\u3068\u306e\u6bd4\u8f03\uff1aIP\u30a2\u30c9\u30ec\u30b9\/\u30eb\u30fc\u30c8\/\u30eb\u30fc\u30eb\u3068\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3068\u306e\u6bd4\u8f03\u3002<\/li>\n  <li>\u30d1\u30b1\u30c3\u30c8\u8a18\u9332\uff1a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u30db\u30b9\u30c8\u3092\u5bfe\u8c61\u3068\u3057\u3001\u30aa\u30d5\u30ed\u30fc\u30c9\u3092\u89b3\u5bdf\u3057\u3001TLS-SNI\/ALPN\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002<\/li>\n  <li>\u30af\u30ed\u30b9\u30c1\u30a7\u30c3\u30af\uff1a\u8907\u6570\u306e\u30bd\u30fc\u30b9\uff08\u5185\u90e8\/\u5916\u90e8\uff09\u304b\u3089\u30c6\u30b9\u30c8\u3092\u884c\u3044\u3001\u975e\u5bfe\u79f0\u306a\u554f\u984c\u3092\u691c\u51fa\u3059\u308b\u3002<\/li>\n  <li>\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u6a5f\u80fd\uff1a\u5404\u5909\u66f4\u306e\u524d\u306b\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u30ea\u30bf\u30fc\u30f3\u30d1\u30b9\u3092\u8a08\u753b\u3059\u308b\u3002<\/li>\n<\/ul>\n\n<h2>\u5bfe\u8c61\u3092\u7d5e\u3063\u305f\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u6587\u66f8\u5316\u3001\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0<\/h2>\n<p>\u79c1\u306fICMP\u30c1\u30a7\u30c3\u30af\u3001\u30dd\u30fc\u30c8\u30c1\u30a7\u30c3\u30af\u3001\u30d5\u30ed\u30fc\u5206\u6790\u306b\u3088\u3063\u3066\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3001\u30d1\u30b1\u30c3\u30c8\u30ed\u30b9\u3001\u30b8\u30c3\u30bf\u30fc\u3092\u76e3\u8996\u3057\u3001\u7570\u5e38\u3092\u65e9\u671f\u306b\u767a\u898b\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002 <strong>\u30c8\u30ec\u30f3\u30c9<\/strong> 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href=\"https:\/\/webhosting.de\/ja\/%e3%83%98%e3%83%83%e3%83%84%e3%83%8a%e3%83%bcdns%e3%82%b3%e3%83%b3%e3%83%95%e3%82%a3%e3%82%ae%e3%83%a5%e3%83%ac%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%82%ac%e3%82%a4%e3%83%89%e3%82%bb%e3%83%83\/\">DNS\u30ac\u30a4\u30c9<\/a>\u30b5\u30fc\u30d3\u30b9\u304c\u4e00\u8cab\u3057\u3066\u89e3\u6c7a\u53ef\u80fd\u3067\u3042\u308a\u7d9a\u3051\u308b\u3088\u3046\u306b\u3002\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u304c\u6210\u9577\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u79c1\u306f\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u62e1\u5f35\u3057\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3092\u8ffd\u52a0\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30b0\u30eb\u30fc\u30d7\u3092\u6a19\u6e96\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5b89\u5168\u306b\u62e1\u5f35\u3057\u3001\u505c\u6b62\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u660e\u78ba\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a19\u6e96\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <strong>\u69cb\u9020<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/09\/hetzner_setup_schreibtisch_8427.webp\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u81ea\u52d5\u5316\uff1aTerraform\u3001Ansible\u3001\u4e00\u8cab\u3057\u305f\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8<\/h2>\n<p>\u79c1\u306f\u518d\u73fe\u53ef\u80fd\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u69cb\u7bc9\u3059\u308b\uff1a\u30cd\u30fc\u30df\u30f3\u30b0\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u3001\u30eb\u30fc\u30c8\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5272\u308a\u5f53\u3066\u3092\u30b3\u30fc\u30c9\u3068\u3057\u3066\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u4e00\u306e\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u30fb\u30c8\u30dd\u30ed\u30b8\u30fc\u3068\u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u30fb\u30c8\u30dd\u30ed\u30b8\u30fc\u3092\u4f5c\u6210\u3057\u3001\u4e8b\u524d\u306b\u5909\u66f4\u3092\u30c6\u30b9\u30c8\u3057\u3001\u30bf\u30a4\u30d7\u30df\u30b9\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30db\u30b9\u30c8\u30ec\u30d9\u30eb\u3067\u306f\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304b\u3089\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3057\u3001\u30ed\u30fc\u30eb\u3054\u3068\u306bIP\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3001\u30eb\u30fc\u30c8\u3001MTU\u306a\u3069\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6ce8\u5165\u3059\u308b\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30d7\u30ed\u30d3\u30b8\u30e7\u30cb\u30f3\u30b0\u6642\u306b\u306f\u3001Cloud-init\u3092\u4f7f\u3063\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068SSH\u306e\u57fa\u672c\u3092\u76f4\u63a5\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u5909\u66f4\u3092\u52a0\u3048\u308b\u3068\u304d\u306f\u3001\u307e\u305a\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u3067\u691c\u8a3c\u3057\u3001\u305d\u308c\u304b\u3089\u5c0f\u30d0\u30c3\u30c1\u3067\u672c\u7a3c\u50cd\u3055\u305b\u3001\u30c6\u30ec\u30e1\u30c8\u30ea\u30fc\u3092\u6ce8\u8996\u3057\u307e\u3059\u3002<\/p>\n\n<h2>\u5909\u66f4\u3068\u30ad\u30e3\u30d1\u30b7\u30c6\u30a3\u30fb\u30de\u30cd\u30b8\u30e1\u30f3\u30c8<\/h2>\n<p>\u79c1\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30fb\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u8a08\u753b\u3057\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30fb\u30ec\u30d9\u30eb\u3092\u5b9a\u7fa9\u3059\u308b\u3002\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5909\u66f4\u306b\u306f\u3001\u5909\u66f4\u524d\uff0f\u5909\u66f4\u5f8c\u306e\u6e2c\u5b9a\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3057\u305f\u5c0f\u898f\u6a21\u306a\u30c6\u30b9\u30c8\u8a08\u753b\u3092\u7acb\u3066\u307e\u3059\u3002\u30ad\u30e3\u30d1\u30b7\u30c6\u30a3\u306b\u3064\u3044\u3066\u306f\u3001\u30be\u30fc\u30f3\u3054\u3068\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3067\u306e\u63a5\u7d9a\u8ca0\u8377\u3001\u63a5\u7d9a\u6570\/\u5206\u306e\u958b\u767a\u72b6\u6cc1\u3092\u8abf\u3079\u307e\u3059\u3002\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u304c\u767a\u751f\u3059\u308b\u524d\u306b\u3001\u65e9\u3044\u6bb5\u968e\u3067\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u8ffd\u52a0\u3057\u305f\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30fb\u30eb\u30fc\u30c8\u3092\u5206\u3051\u305f\u308a\uff08\u6771\u897f\u5bfe\u5357\u5317\uff09\u3057\u307e\u3059\u3002\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306f\u5e38\u306b\u6700\u65b0\u306e\u3082\u306e\u306b\u3057\u3066\u3044\u307e\u3059\uff1aIP\u30d7\u30e9\u30f3\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30b9\u30b1\u30c3\u30c1\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u30dd\u30ea\u30b7\u30fc\u3068\u8cac\u4efb\u306f\u6700\u65b0\u3067\u3001\u30c1\u30fc\u30e0\u304c\u898b\u3064\u3051\u3084\u3059\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<h2>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u96c6\u7d04\u578b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u6bd4\u8f03<\/h2>\n<p>\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001\u63a5\u7d9a\u6027\u3001\u6a5f\u80fd\u7bc4\u56f2\u3001\u4f7f\u3044\u3084\u3059\u3055\u3001\u305d\u3057\u3066\u3001\u305d\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u3063\u3066\u8a55\u4fa1\u3059\u308b\u3002 <strong>\u67d4\u8edf\u6027<\/strong>.\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8981\u4ef6\u306e\u9ad8\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u5c02\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u591a\u5f69\u306a\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u304c\u53ef\u80fd\u306awebhoster.de\u3092\u7b46\u982d\u306b\u6319\u3052\u307e\u3059\u3002Hetzner\u306f\u5f37\u529b\u306a\u30af\u30e9\u30a6\u30c9\u3068\u5c02\u7528\u30b5\u30fc\u30d0\u30fc\u3092\u63d0\u4f9b\u3057\u3001\u591a\u304f\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u975e\u5e38\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u9ad8\u3044\u8a55\u4fa1\u3092\u5f97\u3066\u3044\u308b\u3002Strato\u306f\u6a19\u6e96\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u30ab\u30d0\u30fc\u3057\u3001IONOS\u306f\u3044\u304f\u3064\u304b\u306e\u30b1\u30fc\u30b9\u3067\u826f\u3044\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u304c\u3001\u7279\u6b8a\u306a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306b\u306f\u3042\u307e\u308a\u4f59\u88d5\u304c\u306a\u3044\u3002\u3053\u306e\u5206\u985e\u306f\u3001\u9069\u5207\u306a\u57fa\u76e4\u3092\u9078\u629e\u3057\u3001\u5f8c\u306e\u6c7a\u65ad\u3092\u4e0b\u3059\u306e\u306b\u5f79\u7acb\u3064\u3002 <strong>\u30dc\u30c8\u30eb\u30cd\u30c3\u30af<\/strong> \u3092\u907f\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u5834\u6240<\/th>\n      <th>\u30d7\u30ed\u30d0\u30a4\u30c0<\/th>\n      <th>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7279\u5fb4<\/th>\n      <th>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>1<\/td>\n      <td>webhoster.de<\/td>\n      <td>\u5c02\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u9ad8\u901f\u63a5\u7d9a\u3001\u9ad8\u3044\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u6027<\/td>\n      <td>\u5091\u51fa\u3057\u3066\u3044\u308b<\/td>\n    <\/tr>\n    <tr>\n      <td>2<\/td>\n      <td>\u30d8\u30c3\u30c4\u30ca\u30fc<\/td>\n      <td>\u5f37\u529b\u306a\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d0\u30fc\u3068\u5c02\u7528\u30b5\u30fc\u30d0\u30fc<\/td>\n      <td>\u975e\u5e38\u306b\u826f\u3044<\/td>\n    <\/tr>\n    <tr>\n      <td>3<\/td>\n      <td>\u30b9\u30c8\u30e9\u30c8<\/td>\n      <td>\u6a19\u6e96\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u80fd<\/td>\n      <td>\u30b0\u30c3\u30c9<\/td>\n    <\/tr>\n    <tr>\n      <td>4<\/td>\n      <td>\u30a4\u30aa\u30ce\u30b9<\/td>\n      <td>\u9ad8\u7d1a\u30aa\u30d7\u30b7\u30e7\u30f3\u3001\u30ab\u30b9\u30bf\u30e0\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u7bc4\u56f2\u306f\u9650\u5b9a\u7684<\/td>\n      <td>\u30b0\u30c3\u30c9<\/td>\n    <\/tr>\n  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