{"id":15997,"date":"2024-08-04T01:32:33","date_gmt":"2024-08-03T22:02:33","guid":{"rendered":"https:\/\/www.itpiran.net\/blog\/?p=15997"},"modified":"2024-08-04T01:32:33","modified_gmt":"2024-08-03T22:02:33","slug":"security-ubuntu-settings-firewall-tools","status":"publish","type":"post","link":"https:\/\/www.itpiran.net\/blog\/ja\/tutorials\/security-ubuntu-settings-firewall-tools\/","title":{"rendered":"Ubuntu\u30b5\u30fc\u30d0\u30fc\u3092\u5b89\u5168\u306b\u4fdd\u3064\u65b9\u6cd5"},"content":{"rendered":"<h2 id=\"%d9%85%d9%82%d8%af%d9%85%d9%87\">\u5c0e\u5165<\/h2>\n<p>\u521d\u3081\u3066\u30b5\u30fc\u30d0\u30fc\u3092\u69cb\u7bc9\u3057\u305f\u6642\u306e\u3053\u3068\u3092\u899a\u3048\u3066\u3044\u307e\u3059\u3002\u60aa\u610f\u306e\u3042\u308b\u4eba\u7269\u304c\u30b5\u30fc\u30d0\u30fc\u306b\u4fb5\u5165\u3067\u304d\u308b\u3068\u306f\u601d\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u307b\u3068\u3093\u3069\u4f55\u3082\u3057\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u305d\u3057\u3066\u3001\u3069\u3046\u306a\u3063\u305f\u304b\u306f\u3054\u60f3\u50cf\u306e\u901a\u308a\u3067\u3059\u3002\u5e78\u3044\u306b\u3082\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u3063\u3066\u3044\u305f\u306e\u3067\u3001\u7c21\u5358\u306b\u5fa9\u5143\u3067\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u307e\u305f\u540c\u3058\u3053\u3068\u304c\u8d77\u3053\u308a\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u4eca\u56de\u306f\u3001\u8abf\u67fb\u3068\u4e0b\u8abf\u3079\u3092\u884c\u3044\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3057\u307e\u3057\u305f\u3002\u30cf\u30c3\u30ad\u30f3\u30b0\u3055\u308c\u306a\u3044\u30b5\u30fc\u30d0\u30fc\u306a\u3069\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u306f\u627f\u77e5\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u5b89\u5168\u306b\u4fdd\u3064\u65b9\u6cd5\u3068\u3001\u4e07\u304c\u4e00\u30b5\u30fc\u30d0\u30fc\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306e\u5bfe\u51e6\u6cd5\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002.<\/p>\n<p>\u307e\u305a\u306f\u57fa\u672c\u7684\u306a\u8a2d\u5b9a\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002\u65b0\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u3092\u4f5c\u6210\u3057\u305f\u3089\u4f55\u3092\u3059\u3079\u304d\u304b\u3092\u5b66\u3073\u307e\u3059\u3002\u6b21\u306b\u3001\u5b9a\u671f\u7684\u306a\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u65bd\u3057\u3066\u30b5\u30fc\u30d0\u30fc\u3092\u7dad\u6301\u3059\u308b\u65b9\u6cd5\u3092\u5b66\u3073\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u30c0\u30a6\u30f3\u3057\u305f\u5834\u5408\u306e\u5bfe\u51e6\u6cd5\u3092\u5b66\u3073\u307e\u3059\u3002\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u30d7\u30ed\u306e\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u8005\u306b\u306a\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u8005\u306f\u591a\u304f\u306e\u4f5c\u696d\u3092\u5fc5\u8981\u3068\u3057\u3001\u5927\u5909\u306a\u4ed5\u4e8b\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u5c11\u306a\u304f\u3068\u3082\u8da3\u5473\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u5b89\u5168\u306b\u7dad\u6301\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h5 id=\"%d9%be%db%8c%d8%b4-%d9%86%db%8c%d8%a7%d8%b2%d9%87%d8%a7\">\u524d\u63d0\u6761\u4ef6<\/h5>\n<ul>\n<li>1\u53f0\u306e\u30b5\u30fc\u30d0\u30fc\uff08\u4f8b\uff1aHetzner\uff09<\/li>\n<\/ul>\n<h2 id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-1-%d8%b1%d8%a7%d9%87-%d8%a7%d9%86%d8%af%d8%a7%d8%b2%db%8c-%d8%a7%d9%88%d9%84%db%8c%d9%87-%d9%88-%d8%a7%d9%85%d9%86%db%8c%d8%aa-%d8%a7%d9%88%d9%84%db%8c%d9%87\">\u30b9\u30c6\u30c3\u30d71 \u2013 \u521d\u671f\u8a2d\u5b9a\u3068\u57fa\u672c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/h2>\n<p>\u30b5\u30fc\u30d0\u30fc\u3092\u4f5c\u6210\u3057\u305f\u3089\u3001\u300cUbuntu \u3067\u306e\u521d\u671f\u30b5\u30fc\u30d0\u30fc\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u300d\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u624b\u9806 1 \uff5e 5 \u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u4ee5\u4e0b\u306e\u624b\u9806\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>sudo\u6a29\u9650\u3092\u6301\u3064\u65b0\u3057\u3044\u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<li>SSH\u30ad\u30fc\u3092\u8ffd\u52a0\u3059\u308b<\/li>\n<\/ul>\n<p>\u30ea\u30f3\u30af\u3055\u308c\u305f\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u6700\u521d\u306e 5 \u3064\u306e\u624b\u9806\u3092\u5b8c\u4e86\u3057\u3001\u65b0\u3057\u3044 sudo \u30e6\u30fc\u30b6\u30fc\u306b\u63a5\u7d9a\u3057\u305f\u3089\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u3092\u7d9a\u884c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h2 id=\"%d8%a8%d9%87-%d8%b1%d9%88%d8%b2-%d8%b1%d8%b3%d8%a7%d9%86%db%8c-%d8%b3%db%8c%d8%b3%d8%aa%d9%85\">\u30b7\u30b9\u30c6\u30e0\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/h2>\n<p>\u307e\u305a\u6700\u521d\u306b\u3059\u3079\u304d\u3053\u3068\u306f\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u53e4\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306b\u306f\u8106\u5f31\u6027\u304c\u3042\u308a\u3001\u7c21\u5358\u306b\u60aa\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u601d\u3063\u305f\u3088\u308a\u7c21\u5358\u3067\u3059\u3002\u6b21\u306e2\u3064\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt update\r\nsudo apt upgrade<\/code><\/pre>\n<\/div>\n<p>\u7c21\u5358\u3067\u3059\u3088\u306d\uff1f\u3053\u308c\u3067\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002.<\/p>\n<h2 id=\"%d8%af%d8%b3%d8%aa%d8%b1%d8%b3%db%8c-%d8%a7%d9%85%d9%86-%d8%a8%d9%87-ssh\">\u5b89\u5168\u306aSSH\u30a2\u30af\u30bb\u30b9<\/h2>\n<p>\u8ab0\u304b\u304c\u3042\u306a\u305f\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u653b\u6483\u3059\u308b\u5834\u5408\u3001\u307e\u305aSSH\u7d4c\u7531\u3067\u30a2\u30af\u30bb\u30b9\u3092\u8a66\u307f\u308b\u3067\u3057\u3087\u3046\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u30dc\u30c3\u30c8\u3084\u8907\u6570\u306e\u624b\u6bb5\u3092\u7528\u3044\u3066\u3053\u308c\u3092\u884c\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001SSH\u30a2\u30af\u30bb\u30b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u78ba\u4fdd\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002.<\/p>\n<p>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u7de8\u96c6\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo nano \/etc\/ssh\/sshd_config\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>\u30eb\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u3092\u7121\u52b9\u306b\u3059\u308b<\/li>\n<\/ul>\n<p>\u300cPermitRootLogin\u300d\u306e\u884c\u3092\u898b\u3064\u3051\u3066\u3001\u300cno\u300d\u306b\u5909\u66f4\u3057\u307e\u3059\u3002.<\/p>\n<ul>\n<li>\u30d1\u30b9\u30ef\u30fc\u30c9\u5165\u529b\u3092\u7121\u52b9\u306b\u3059\u308b<\/li>\n<\/ul>\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b SSH \u30ad\u30fc\u3092\u8ffd\u52a0\u3057\u305f\u5834\u5408\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u5165\u529b\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>\u201c\u300cPasswordAuthentication\u300d\u3092\u898b\u3064\u3051\u3066\u3001\u300cno\u300d\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002.<\/li>\n<li>\u201c\u300cPubkeyAuthentication\u300d\u3092\u898b\u3064\u3051\u3066\u3001\u300c\u306f\u3044\u300d\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<\/li>\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u306eSSH\u30dd\u30fc\u30c8\u3092\u5909\u66f4\u3059\u308b<\/li>\n<\/ul>\n<p>\u3053\u308c\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u3001\u81ea\u52d5\u5316\u3055\u308c\u305f\u30dc\u30c3\u30c8\u653b\u6483\u306e\u307b\u3068\u3093\u3069\u3092\u6392\u9664\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u307b\u3068\u3093\u3069\u306f\u507d\u306e\u30dc\u30c3\u30c8\u3067\u3042\u308a\u3001\u30dd\u30fc\u30c8 22 \u7d4c\u7531\u3067 SSH \u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u305f\u3081\u3067\u3059\u3002.<\/p>\n<p>\u300c#Port 22\u300d\u3068\u3044\u3046\u884c\u3092\u898b\u3064\u3051\u3066\u3001\u300cPort 2222\u300d\u306a\u3069\u306b\u5909\u66f4\u3057\u307e\u3059\uff08\u307e\u305f\u306f 2222 \u3092\u4efb\u610f\u306e\u5024\u306b\u5909\u66f4\u3057\u307e\u3059\uff09\u3002.<\/p>\n<p>\u5909\u66f4\u3092\u4fdd\u5b58\u3057\u3001\u30dd\u30fc\u30c8\u304c\u6b63\u5e38\u306b\u5909\u66f4\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo systemctl restart ssh.service\r\nsudo systemctl status ssh<\/code><\/pre>\n<\/div>\n<p>\u300cServer listen on :: port 2222\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/p>\n<p>\u30dd\u30fc\u30c8 2222 \u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u63a5\u7d9a\u3092\u7d42\u4e86\u3057\u3001\u65b0\u3057\u3044\u30dd\u30fc\u30c8\u3078\u306e\u63a5\u7d9a\u304c\u6a5f\u80fd\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>ssh -p 2222 holu@&lt;203.0.113.1&gt;\r\n<\/code><\/pre>\n<\/div>\n<p>\u8a2d\u5b9a\u3057\u305f\u30dd\u30fc\u30c8\u306b\u63a5\u7d9a\u3067\u304d\u308c\u3070\u3001\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u7d9a\u884c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h2 id=\"%db%8c%da%a9-%d9%81%d8%a7%db%8c%d8%b1%d9%88%d8%a7%d9%84-%d8%b1%d8%a7-%d9%be%db%8c%da%a9%d8%b1%d8%a8%d9%86%d8%af%db%8c-%da%a9%d9%86%db%8c%d8%af\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3059\u308b<\/h2>\n<p>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u306e\u7ba1\u7406\u306b\u306f\u300cufw\u300d\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002ufw\u306f\u4f7f\u3044\u3084\u3059\u304f\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002ufw\u306f\u30b7\u30b9\u30c6\u30e0\u306b\u65e2\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6e08\u307f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt install ufw\r\n<\/code><\/pre>\n<\/div>\n<p>\u6b21\u306b\u3001\u4ed6\u306e\u30eb\u30fc\u30eb\u3067\u660e\u793a\u7684\u306b\u8a31\u53ef\u3055\u308c\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u3059\u3079\u3066\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u62d2\u5426\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u660e\u793a\u7684\u306b\u8a31\u53ef\u3057\u305f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u307f\u3092\u8a31\u53ef\u3059\u308b\u3053\u3068\u3067\u30b5\u30fc\u30d0\u30fc\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo ufw default deny incoming\r\n<\/code><\/pre>\n<\/div>\n<p>\u6b21\u306b\u3001\u3059\u3079\u3066\u306e\u9001\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u901a\u5e38\u5b89\u5168\u3067\u3042\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u4ed6\u306e\u30b5\u30fc\u30d0\u30fc\u3084\u30b5\u30fc\u30d3\u30b9\u3068\u5236\u9650\u306a\u304f\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo ufw default allow outgoing\r\n<\/code><\/pre>\n<\/div>\n<p>\u6b21\u306b\u3001SSH\u30dd\u30fc\u30c8\u304cSSH\u7d4c\u7531\u3067\u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u8a31\u53ef\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u30022222\u3092\u5225\u306eSSH\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u7f6e\u304d\u63db\u3048\u3066\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo ufw allow 2222\/tcp\r\n<\/code><\/pre>\n<\/div>\n<p>\u6700\u5f8c\u306b\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb \u30eb\u30fc\u30eb\u3092\u6709\u52b9\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo ufw enable\r\n<\/code><\/pre>\n<\/div>\n<h2 id=\"fail2ban\">\u30d5\u30a7\u30a4\u30eb 2 \u30d0\u30f3<\/h2>\n<p>SSH\u30dd\u30fc\u30c8\u3092\u5909\u66f4\u3057\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u30dc\u30c3\u30c8\u304c\u30dd\u30fc\u30c8\u3092\u898b\u3064\u3051\u3066SSH\u7d4c\u7531\u3067\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u305f\u3089\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\uff1f\u3053\u308c\u306f\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u3067\u3042\u308a\u3001Fail2Ban\u3067\u30b5\u30fc\u30d0\u30fc\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u8a66\u307f\u306e\u5146\u5019\u304c\u898b\u3089\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002Fail2Ban\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u6709\u52b9\u306b\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt install fail2ban\r\nsudo systemctl enable fail2ban\r\nsudo systemctl start fail2ban<\/code><\/pre>\n<\/div>\n<p>\/etc\/fail2ban\/ \u30d5\u30a9\u30eb\u30c0\u5185\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u7de8\u96c6\u3059\u308b\u3053\u3068\u3067\u3001Fail2Ban \u306e\u8a2d\u5b9a\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3088\u308a\u8a73\u7d30\u306a\u60c5\u5831\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001Fail2Ban \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002.<\/p>\n<p>\u7d20\u6674\u3089\u3057\u3044\uff01\u5927\u304d\u306a\u4e00\u6b69\u3092\u8e0f\u307f\u51fa\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u307e\u3057\u305f\u3002\u4eca\u306f\u3001\u5b9a\u671f\u7684\u306b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u884c\u3046\u3060\u3051\u3067\u5927\u4e08\u592b\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u5fc5\u8981\u306a\u4f5c\u696d\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<h2 id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-2-%d8%aa%d8%b9%d9%85%db%8c%d8%b1-%d9%88-%d9%86%da%af%d9%87%d8%af%d8%a7%d8%b1%db%8c-%d9%85%d9%86%d8%b8%d9%85\">\u30b9\u30c6\u30c3\u30d72 \u2013 \u5b9a\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/h2>\n<ul>\n<li>\u30b7\u30b9\u30c6\u30e0\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/li>\n<\/ul>\n<p>\u307e\u305a\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt update &amp;&amp; sudo apt upgrade -y\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>\u30ec\u30dd\u30fc\u30c8\u3092\u76e3\u8996\u3059\u308b<\/li>\n<\/ul>\n<p>\u7570\u5e38\u306a\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u691c\u51fa\u3059\u308b\u306b\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u30ed\u30b0\u3092\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Logwatch \u306f\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u81ea\u52d5\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002logwatch \u306f\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt install logwatch\r\n<\/code><\/pre>\n<\/div>\n<p>\u3088\u308a\u8a73\u3057\u3044\u60c5\u5831\u3001\u65e5\u6b21\u30ec\u30dd\u30fc\u30c8\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u5916\u89b3\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u3053\u306e\u30ac\u30a4\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002.<\/p>\n<ul>\n<li>\u30c7\u30a3\u30b9\u30af\u306e\u4f7f\u7528\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u30b5\u30fc\u30d0\u30fc\u3092\u5b9f\u884c\u3059\u308b\u306e\u306b\u5341\u5206\u306a\u30b9\u30da\u30fc\u30b9\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067\u6b8b\u308a\u306e\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>df -h\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>\u30c7\u30fc\u30bf\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<p>\u30b5\u30fc\u30d0\u30fc\u304c\u5b8c\u5168\u306b\u524a\u9664\u3055\u308c\u305f\u308a\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u308a\u3057\u305f\u5834\u5408\u306b\u5099\u3048\u3066\u3001\u5e38\u306b\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5e78\u3044\u306a\u3053\u3068\u306b\u3001Hetzner\u306f\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d0\u30fc\u7528\u306e\u81ea\u52d5\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u72ec\u81ea\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u4f5c\u6210\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u300crsync\u300d\u3084\u300cDuplicity\u300d\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002.<\/p>\n<ul>\n<li>\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u76e3\u67fb\u3059\u308b<\/li>\n<\/ul>\n<p>\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u8a31\u53ef\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u306e\u307f\u304c\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e0d\u8981\u306b\u306a\u3063\u305f\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo nano \/etc\/passwd\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8\u3068\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u30c1\u30a7\u30c3\u30af<\/li>\n<\/ul>\n<p>\u30b5\u30fc\u30d0\u30fc\u3092\u7d20\u65e9\u304f\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u306b\u306f\u3001\u300crkhunter\u300d\u3084\u300cchkrootkit\u300d\u306a\u3069\u306e\u30c4\u30fc\u30eb\u304c\u4fbf\u5229\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u3001\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8\u3001\u30d0\u30c3\u30af\u30c9\u30a2\u3001\u30ed\u30fc\u30ab\u30eb\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u53ef\u80fd\u6027\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u3059\u3079\u3066\u304c\u6b63\u5e38\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3001rkhunter\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u4ee5\u4e0b\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt install rkhunter\r\nsudo rkhunter --check<\/code><\/pre>\n<\/div>\n<p><img  loading=\"lazy\"  decoding=\"async\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=\"  alt=\"\"  width=\"730\"  height=\"510\"  class=\"aligncenter wp-image-16001 size-full pk-lazyload\"  data-pk-sizes=\"auto\"  data-ls-sizes=\"auto, (max-width: 730px) 100vw, 730px\"  data-pk-src=\"https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1.png\"  data-pk-srcset=\"https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1.png 730w, https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1-300x210.png 300w, https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1-110x77.png 110w, https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1-200x140.png 200w, https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1-380x265.png 380w, https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1-255x178.png 255w, https:\/\/cdn.itpiran.net\/2024\/08\/04012030\/1-550x384.png 550w\" ><\/p>\n<ul>\n<li>\u30b7\u30b9\u30c6\u30e0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u76e3\u8996<\/li>\n<\/ul>\n<p>\u6700\u5f8c\u306b\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9f\u884c\u4e2d\u306b\u30ea\u30bd\u30fc\u30b9\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u304c\u767a\u751f\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u3001\u30b7\u30b9\u30c6\u30e0\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u7d20\u65e9\u304f\u30c1\u30a7\u30c3\u30af\u3067\u304d\u307e\u3059\u3002\u300chtop\u300d\u300ctop\u300d\u300catop\u300d\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3060\u3051\u3067\u3082\u5341\u5206\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>htop<\/code><\/pre>\n<\/div>\n<p><img  loading=\"lazy\"  decoding=\"async\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=\"  alt=\"\"  width=\"800\"  height=\"509\"  class=\"aligncenter wp-image-16002 size-full pk-lazyload\"  data-pk-sizes=\"auto\"  data-ls-sizes=\"auto, (max-width: 800px) 100vw, 800px\"  data-pk-src=\"https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2.png\"  data-pk-srcset=\"https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2.png 800w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-300x191.png 300w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-768x489.png 768w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-110x70.png 110w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-200x127.png 200w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-380x242.png 380w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-255x162.png 255w, https:\/\/cdn.itpiran.net\/2024\/08\/04012201\/2-550x350.png 550w\" ><\/p>\n<h2 id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-3-%d8%a7%d8%a8%d8%b2%d8%a7%d8%b1%d9%87%d8%a7%db%8c-%d8%a7%d9%85%d9%86%db%8c%d8%aa%db%8c-%d8%a8%db%8c%d8%b4%d8%aa%d8%b1\">\u30b9\u30c6\u30c3\u30d73 \u2013 \u305d\u306e\u4ed6\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c4\u30fc\u30eb<\/h2>\n<ul>\n<li>\u4fb5\u5165\u691c\u77e5\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u300cAIDE\u300d\uff08Advanced Intrusion Detection Environment\uff09\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5909\u66f4\u3092\u76e3\u8996\u3067\u304d\u307e\u3059\u3002AIDE\u306f\u30d5\u30a1\u30a4\u30eb\u3068\u30d5\u30a9\u30eb\u30c0\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4f5c\u6210\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002\u8a73\u7d30\u306f\u30ea\u30dd\u30b8\u30c8\u30ea\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u521d\u56de\u4f7f\u7528\u6642\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt install aide\r\n<\/code><\/pre>\n<\/div>\n<p>\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u8d77\u52d5\u304a\u3088\u3073\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo aideinit\r\nsudo cp \/var\/lib\/aide\/aide.db.new \/var\/lib\/aide\/aide.db<\/code><\/pre>\n<\/div>\n<p>\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo aide --config \/etc\/aide\/aide.conf --check\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>2\u8981\u7d20\u8a8d\u8a3c\uff082FA\uff09\u3092\u6709\u52b9\u306b\u3059\u308b<\/li>\n<\/ul>\n<p>SSH\u7d4c\u7531\u3067\u30b5\u30fc\u30d0\u30fc\u306b\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u969b\u306b2FA\uff08\u4e8c\u8981\u7d20\u8a8d\u8a3c\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4fdd\u8b77\u5c64\u304c\u3055\u3089\u306b\u5f37\u5316\u3055\u308c\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306f\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067\u884c\u3048\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>sudo apt install libpam-google-authenticator\r\n<\/code><\/pre>\n<\/div>\n<p>\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>google-authenticator\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>\u5b89\u5168\u306a\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/li>\n<\/ul>\n<p>\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u5f93\u3044\u3001\u5b9a\u671f\u7684\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001WordPress\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5e38\u306b\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306eWordPress\u3092\u4f7f\u7528\u3057\u3001\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u30c6\u30fc\u30de\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u9069\u5207\u306aWordPress\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h2 id=\"%d9%85%d8%b1%d8%ad%d9%84%d9%87-4-%d8%b7%d8%b1%d8%ad-%d9%88%d8%a7%da%a9%d9%86%d8%b4-%d8%a8%d9%87-%d8%ad%d8%a7%d8%af%d8%ab%d9%87\">\u30b9\u30c6\u30c3\u30d74 \u2013 \u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u8a08\u753b<\/h2>\n<p>\u3053\u306e\u8a08\u753b\u306f\u5927\u898f\u6a21\u306a\u7d44\u7e54\u3067\u306f\u975e\u5e38\u306b\u8a73\u7d30\u306a\u3082\u306e\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5c0f\u898f\u6a21\u306a\u30a8\u30f3\u30bf\u30fc\u30c6\u30a4\u30e1\u30f3\u30c8\u30b5\u30fc\u30d0\u30fc\u5411\u3051\u306b\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u5b9f\u7528\u7684\u306a\u3082\u306e\u306b\u3057\u307e\u3059\u3002\u305d\u3053\u3067\u30013\u30b9\u30c6\u30c3\u30d7\u306e\u8a08\u753b\u3092\u3054\u7528\u610f\u3057\u307e\u3057\u305f\u3002.<\/p>\n<ul>\n<li>\u6e96\u5099<\/li>\n<\/ul>\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u60c5\u5831\u3092\u8a18\u8f09\u3057\u305f\u5c0f\u3055\u306a\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u304b\u3001\u30e1\u30e2\u5e33\u306b\u30e1\u30e2\u3092\u6b8b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3001\u5b9f\u884c\u3057\u3066\u3044\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u30ed\u30b0\u306e\u4fdd\u5b58\u5834\u6240\u3001\u8a2d\u5b9a\u306a\u3069\u306e\u60c5\u5831\u3092\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u30e1\u30e2\u306f\u5b89\u5168\u306a\u5834\u6240\u306b\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4ee5\u4e0b\u306e\u4f8b\u3092\u53c2\u8003\u306b\u3001\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h5 id=\"%d8%a7%d8%b7%d9%84%d8%a7%d8%b9%d8%a7%d8%aa-%d8%b3%d8%b1%d9%88%d8%b1\">\u30b5\u30fc\u30d0\u30fc\u60c5\u5831<\/h5>\n<table>\n<thead>\n<tr>\n<th>\u60c5\u5831<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30b5\u30fc\u30d0\u30fc\u540d<\/td>\n<td>\u30de\u30a4\u30b5\u30fc\u30d0\u30fc01<\/td>\n<\/tr>\n<tr>\n<td>IP\u30a2\u30c9\u30ec\u30b9<\/td>\n<td>192.168.1.100<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u00b7\u30b7\u30b9\u30c6\u30e0<\/td>\n<td>Ubuntu 24.04 LTS<\/td>\n<\/tr>\n<tr>\n<td>CPU<\/td>\n<td>4\u3064\u306evCPU<\/td>\n<\/tr>\n<tr>\n<td>\u30e9\u30e0<\/td>\n<td>8GB<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30c8\u30ec\u30fc\u30b8<\/td>\n<td>100GB SSD<\/td>\n<\/tr>\n<tr>\n<td>SSH\u30dd\u30fc\u30c8<\/td>\n<td>2222<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u30b5\u30fc\u30d3\u30b9: Nginx 1.18.0\u3001PostgreSQL 13\u3001Django 3.1<\/li>\n<li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7: \u30c7\u30e5\u30a2\u30eb\u3001\u6bce\u65e5\u3001\/mnt\/backup \u304a\u3088\u3073 AWS S3 \u306e\u30ea\u30e2\u30fc\u30c8 \u30b9\u30c8\u30ec\u30fc\u30b8\u300130 \u65e5\u9593\u4fdd\u6301<\/li>\n<li>Nginx \u306e\u8a2d\u5b9a: \/etc\/nginx\/nginx.conf<\/li>\n<li>PostgreSQL \u306e\u8a2d\u5b9a: \/etc\/postgresql\/13\/main\/postgresql.conf<\/li>\n<li>Django \u306e\u8a2d\u5b9a: \/home\/myuser\/myapp\/settings.py<\/li>\n<li>UFW\u8a2d\u5b9a: \/etc\/ufw\/ufw.conf<\/li>\n<\/ul>\n<\/li>\n<li>\u8b58\u5225<\/li>\n<\/ul>\n<p>\u3053\u306e\u6642\u70b9\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u4f55\u304c\u554f\u984c\u306a\u306e\u304b\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u554f\u984c\u3084\u4fb5\u5bb3\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30b5\u30fc\u30d0\u30fc\u81ea\u4f53\u3001\u305d\u308c\u3068\u3082\u30b5\u30fc\u30d0\u30fc\u5185\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u3044\u305a\u308c\u304b\u306b\u95a2\u9023\u3057\u3066\u3044\u308b\u306e\u304b\uff1f\u78ba\u4fe1\u304c\u6301\u3066\u306a\u3044\u5834\u5408\u306f\u3001\u5e38\u306b\u3059\u3079\u3066\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u3066\u3044\u308b\u3068\u60f3\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u305f\u3081\u3001\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u59cb\u3081\u3066\u3001\u3059\u3079\u3066\u3092\u518d\u5ea6\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<ul>\n<li>\u6539\u5584<\/li>\n<\/ul>\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u640d\u50b7\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u3092\u5fa9\u5143\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u304b\u3089\u5fa9\u5143\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e1\u3064\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u304b\u3089\u5fa9\u5143\u3059\u308b\u3060\u3051\u3067\u6e08\u3080\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3059\u3079\u3066\u304c\u5fa9\u5143\u3055\u308c\u3001\u30c6\u30b9\u30c8\u3055\u308c\u3001\u671f\u5f85\u3069\u304a\u308a\u306b\u52d5\u4f5c\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b9\u30ad\u30e3\u30f3\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2 id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\">\u7d50\u679c<\/h2>\n<p>\u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3059\u308b\u306b\u306f\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u5b9a\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u6982\u8aac\u3057\u305f\u624b\u9806\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5927\u5e45\u306b\u5f37\u5316\u3057\u3001\u8cb4\u91cd\u306a\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u7d99\u7d9a\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b\u305f\u3081\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5b9a\u671f\u7684\u306a\u30c1\u30a7\u30c3\u30af\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"\u306f\u3058\u3081\u306b 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