{"id":120776,"date":"2024-03-23T23:54:40","date_gmt":"2024-03-23T14:54:40","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/centos%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%82%92%e3%82%b2%e3%83%bc%e3%83%88%e3%82%a6%e3%82%a7%e3%82%a4%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab%e3%81%a7%e3%83%8d\/"},"modified":"2024-03-26T21:33:05","modified_gmt":"2024-03-26T12:33:05","slug":"centos%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%82%92%e3%82%b2%e3%83%bc%e3%83%88%e3%82%a6%e3%82%a7%e3%82%a4%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab%e3%81%a7%e3%83%8d","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/centos%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%82%92%e3%82%b2%e3%83%bc%e3%83%88%e3%82%a6%e3%82%a7%e3%82%a4%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab%e3%81%a7%e3%83%8d\/","title":{"rendered":"CentOS\u30b5\u30fc\u30d0\u30fc\u3092\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3059\u308b"},"content":{"rendered":"<p>CentOS\u30b5\u30fc\u30d0\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u4fdd\u8b77\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\uff1aCentOS\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u3057\u3066iptables\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5229\u7528\u3055\u308c\u3066\u304a\u308a\u3001\/etc\/sysconfig\/iptables\u30d5\u30a1\u30a4\u30eb\u306e\u7de8\u96c6\u304b\u3089\u30eb\u30fc\u30eb\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3059\u308b\u30dd\u30fc\u30c8\u3084IP\u30a2\u30c9\u30ec\u30b9\u3092\u8ffd\u52a0\u3057\u3001\u4e0d\u8981\u306a\u30a2\u30af\u30bb\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<li>iptables\u30b5\u30fc\u30d3\u30b9\u3092\u6709\u52b9\u306b\u3059\u308b\uff1a\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066iptables\u30b5\u30fc\u30d3\u30b9\u3092\u6709\u52b9\u306b\u3057\u3001\u8d77\u52d5\u6642\u306b\u81ea\u52d5\u7684\u306b\u958b\u59cb\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>systemctl enable iptables\r\nsystemctl start iptables\r\n<\/code><\/pre>\n<ol>\n<li>NAT\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff09\u306e\u8a2d\u5b9a\uff1a\u30b5\u30fc\u30d0\u304c\u5916\u90e8\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u5834\u5408\u3001NAT\u306b\u3088\u3063\u3066\u5185\u90e8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068\u5916\u90e8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u63db\u3067\u304d\u307e\u3059\u3002NAT\u306e\u8a2d\u5b9a\u306b\u306f\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE\r\n<\/code><\/pre>\n<p>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30dd\u30fc\u30c8eth0\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30fc\u30d0\u3068\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u63a5\u7d9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u5229\u7528\u3059\u308b\uff1a\u5916\u90e8\u304b\u3089\u306e\u8981\u6c42\u3092\u5185\u90e8\u30b5\u30fc\u30d0\u30fc\u306b\u8ee2\u9001\u3057\u305f\u3044\u5834\u5408\u306f\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u6a5f\u80fd\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u8a2d\u5b9a\u306b\u306f\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>iptables -t nat -A PREROUTING -p tcp --dport &lt;\u5916\u90e8\u7aef\u53e3&gt; -j DNAT --to-destination &lt;\u5185\u90e8\u670d\u52a1\u5668IP\u5730\u5740&gt;:&lt;\u5185\u90e8\u7aef\u53e3&gt;\r\n<\/code><\/pre>\n<p>\u305d\u306e\u969b\u3001&lt;\u5916\u90e8\u30dd\u30fc\u30c8&gt;\u306f\u5916\u90e8\u304b\u3089\u306e\u8981\u6c42\u306b\u5bfe\u3059\u308b\u30dd\u30fc\u30c8\u3001&lt;\u5185\u90e8\u30b5\u30fc\u30d0\u30fcIP\u30a2\u30c9\u30ec\u30b9&gt;\u306f\u5185\u90e8\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3001&lt;\u5185\u90e8\u30dd\u30fc\u30c8&gt;\u306f\u5185\u90e8\u30b5\u30fc\u30d0\u30fc\u306e\u30dd\u30fc\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u52d5\u304d\u3092\u76e3\u8996\u3057\u3001\u6f5c\u5728\u7684\u306a\u653b\u6483\u3092\u691c\u77e5\u3059\u308b\u305f\u3081\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u30ed\u30b0\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30ed\u30b0\u306e\u8a2d\u5b9a\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>iptables -A INPUT -j LOG\r\n<\/code><\/pre>\n<p>\u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528dmesg\u547d\u4ee4\u67e5\u770b\u9632\u706b\u5899\u65e5\u5fd7\u3002<\/p>\n<ol>\n<li>\u5b9a\u671f\u7684\u306b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u306e\u66f4\u65b0\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u306f\u7d76\u3048\u305a\u5909\u5316\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5b89\u5168\u6027\u3092\u4fdd\u3064\u305f\u3081\u306b\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u306f\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30eb\u30fc\u30eb\u306f\u624b\u52d5\u3067\u78ba\u8a8d\u3057\u3066\u66f4\u65b0\u3059\u308b\u304b\u3001\u81ea\u52d5\u5316\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e00\u90e8\u306b\u904e\u304e\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30bf\u30a4\u30e0\u30ea\u30fc\u306a\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3001\u5f37\u529b\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u3001\u30ea\u30e2\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CentOS\u30b5\u30fc\u30d0\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u4fdd\u8b77\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u306b\u5f93\u3044\u307e\u3059\u3002 \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\uff1aCentOS\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u3057\u3066iptables\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5229 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-120776","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CentOS\u30b5\u30fc\u30d0\u30fc\u3092\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3059\u308b - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" 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content=\"CentOS\u30b5\u30fc\u30d0\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u4fdd\u8b77\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u306b\u5f93\u3044\u307e\u3059\u3002 \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\uff1aCentOS\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u3057\u3066iptables\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5229 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/centos\u30b5\u30fc\u30d0\u30fc\u3092\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u30cd\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-23T14:54:40+00:00\" \/>\n<meta property=\"article:modified_time\" 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