{"id":2785,"date":"2024-01-29T11:59:54","date_gmt":"2024-01-29T02:59:54","guid":{"rendered":"https:\/\/wp.kaz.bz\/tech\/?p=2785"},"modified":"2024-02-07T12:32:51","modified_gmt":"2024-02-07T03:32:51","slug":"%ef%bc%88%e3%83%a1%e3%83%a2%ef%bc%89-centos-almalinux-%e7%b3%bb%e3%81%a7%e3%81%ae%e9%80%81%e4%bf%a1%e8%80%85%e3%82%ac%e3%82%a4%e3%83%89%e3%83%a9%e3%82%a4%e3%83%b3%e5%af%be%e5%bf%9c%ef%bc%88dkim","status":"publish","type":"post","link":"https:\/\/wp.kaz.bz\/tech\/2024\/01\/29\/2785.html","title":{"rendered":"\uff08\u30e1\u30e2\uff09 CentOS \/ Almalinux \u7cfb\u3067\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\uff08DKIM\uff09"},"content":{"rendered":"<h2>Google \u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u4e3b\u306a\u5bfe\u5fdc<\/h2>\n<p><a href=\"https:\/\/support.google.com\/a\/answer\/81126?hl=ja-jp\" class=\"ext-link\" rel=\"external nofollow\" target=\"_blank\">Google: \u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a><\/p>\n<h3>\u5bfe\u8c61\u3068\u306a\u308b\u6761\u4ef6\uff08\u5f15\u7528\uff09<\/h3>\n<blockquote><p>\n  Gmail \u3067\u306f 2024 \u5e74 2 \u6708\u4ee5\u964d\u3001Gmail \u30a2\u30ab\u30a6\u30f3\u30c8\u306b 1 \u65e5\u3042\u305f\u308a 5,000 \u4ef6\u4ee5\u4e0a\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u30011. \u9001\u4fe1\u30e1\u30fc\u30eb\u3092\u8a8d\u8a3c\u3059\u308b\u3053\u3068\u30012. \u672a\u627f\u8afe\u306e\u30e1\u30fc\u30eb\u307e\u305f\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u30013. \u53d7\u4fe1\u8005\u304c\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u767b\u9332\u3092\u5bb9\u6613\u306b\u89e3\u9664\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3001\u306e 3 \u3064\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002\n<\/p><\/blockquote>\n<h3>1. \u9001\u4fe1\u30e1\u30fc\u30eb\u3092\u8a8d\u8a3c\u3059\u308b\u3053\u3068 \u306e\u8981\u4ef6<\/h3>\n<ol>\n<li>\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u306b TLS \u63a5\u7d9a\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<li>SPF<\/li>\n<li>DKIM<\/li>\n<li>DMARC<\/li>\n<\/ol>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f CentOS \u7cfb\u30b5\u30fc\u30d0\u30fc\u3067 postfix \u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3092\u60f3\u5b9a\u3057\u305f\u3001\u6700\u4f4e\u9650\u306e\u5bfe\u5fdc\u3092\u66f8\u304d\u307e\u3059\u3002<\/p>\n<h2>1. \u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u306b TLS \u63a5\u7d9a\u3092\u4f7f\u7528\u3059\u308b<\/h2>\n<p>\u81ea\u30b5\u30fc\u30d0\u30fc\u304b\u3089 Gmail \u30b5\u30fc\u30d0\u30fc\u3078SMTP\u63a5\u7d9a\u3059\u308b\u969b\u306bTLS\u63a5\u7d9a\u3092\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>postfix \u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb \/etc\/postfix\/main.cf \u3067\u306f\u3001 smtp_ \u3084 smtpd_ \u3067\u59cb\u307e\u308b\u8a2d\u5b9a\u304c\u3042\u308a\u307e\u3059\u304c\u3001<\/p>\n<ul>\n<li>smtp_ : \u81ea\u30b5\u30fc\u30d0\u30fc\u304cSMTP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u3057\u3066\u3069\u3046\u52d5\u4f5c\u3059\u308b\u304b\u306e\u8a2d\u5b9a\u5024<\/li>\n<li>smtpd_ : \u81ea\u30b5\u30fc\u30d0\u30fc\u304cSMTP\u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066\u3069\u3046\u52d5\u4f5c\u3059\u308b\u304b\u306e\u8a2d\u5b9a\u5024<\/li>\n<\/ul>\n<p>\u3068\u8003\u3048\u308b\u3068\u3088\u3055\u305d\u3046\u3067\u3059\u3002<br \/>\n\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u8a2d\u5b9a\u306b\u306f smtp_ \u3067\u59cb\u307e\u308b\u8a2d\u5b9a\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306f <a href=\"https:\/\/www.postfix-jp.info\/trans-2.3\/jhtml\/TLS_README.html\" class=\"ext-link\" rel=\"external nofollow\" target=\"_blank\">\u3053\u306e\u3042\u305f\u308a<\/a> \u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8TLS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb\u300d\u306b\u3042\u308b <code>smtp_tls_security_level<\/code> \u304c\u76f4\u63a5\u7684\u306a\u8a2d\u5b9a\u5024\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u5148\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u304c\u5168\u3066TLS\u3067\u53d7\u3051\u4ed8\u3051\u308b\u3053\u3068\u306b\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070 <code>encrypt<\/code> \u3084 <code>verify<\/code> \u3068\u3059\u308b\u9078\u629e\u80a2\u3082\u3042\u308a\u307e\u3059\u304c\u975e\u73fe\u5b9f\u7684\u306a\u306e\u3067\u3001 <code>may<\/code> \u3068\u6307\u5b9a\u305b\u3056\u308b\u3092\u3048\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n\u95a2\u9023\u3057\u3066\u9001\u4fe1\u5148\u306e\u30b5\u30fc\u30d0\u30fc\u8a3c\u660e\u66f8\u306e\u691c\u8a3c\u306b\u7528\u3044\u308b\u4fe1\u983c\u3059\u308bCA\u3084\u30ed\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a2d\u5b9a\u3092 <code>\/etc\/postfix\/main.cf<\/code> \u306b\u8ffd\u8a18\u3059\u308b\u3053\u3068\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>[code lang=text]<br \/>\nsmtp_tls_security_level = may<br \/>\nsmtp_tls_CAfile = \/etc\/pki\/tls\/cert.pem<br \/>\nsmtp_tls_loglevel = 1<br \/>\n[\/code]<\/p>\n<h2>2. SPF \u3001 4. DMARC<\/h2>\n<p>\u3053\u308c\u3089\u306fDNS\u306b\u7279\u5b9a\u306e\u5f62\u5f0f\u3067\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3059\u308b\u8a2d\u5b9a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>SPF \u306f\u300cFrom \u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308bSMTP\u30b5\u30fc\u30d0\u30fc\u300d\u3092\u8868\u660e\u3059\u308b\u3082\u306e\u3001<br \/>\nDMARC \u306f\u3001SPF\u3084DKIM\u306b\u3088\u308b\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u524d\u63d0\u3068\u3057\u305f\u4e0a\u3067\u3001\u8a8d\u8a3c\u306b\u9055\u53cd\u3057\u305f\u5834\u5408\u306e\u30e1\u30fc\u30eb\u306e\u6271\u3044\u65b9\u3092\u793a\u3059DNS\u30ec\u30b3\u30fc\u30c9<\/p>\n<p>\u3068\u6574\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>SPF<\/h3>\n<p>SPF\u306b\u3064\u3044\u3066\u306f\u69d8\u3005\u306a\u8a18\u4e8b\u304c\u65e2\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u5272\u611b\u3057\u307e\u3059\u3002<br \/>\n\u6ce8\u610f\u70b9\u3068\u3057\u3066\u306f SPF \u30ec\u30b3\u30fc\u30c9\u306e\u691c\u7d22\u6642\u306b10\u56de\u4ee5\u4e0a\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u8ffd\u3046\u3088\u3046\u306a include \u306a\u3069\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u6642\u70b9\u3067SPF\u691c\u8a3c\u5931\u6557\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u30b7\u30f3\u30d7\u30eb\u306b\u3001\u5c11\u306a\u3044\u691c\u7d22\u56de\u6570\u3067\u691c\u7d22\u304c\u5b8c\u4e86\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>DMARC<\/h3>\n<p>DMARC \u30ec\u30b3\u30fc\u30c9\u306b\u306f\u3001\u8a8d\u8a3c\u9055\u53cd\u306e\u30e1\u30fc\u30eb\u3092\u3069\u3046\u6271\u3046\u304b\u3001\u305d\u306e\u9055\u53cd\u304c\u3042\u3063\u305f\u969b\u306b\u3069\u3053\u5b9b\u306b\u30ec\u30dd\u30fc\u30c8\u30e1\u30fc\u30eb\u3092\u9001\u308b\u304b\u3001\u7b49\u304c\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\u3002<br \/>\n\u3057\u304b\u3057\u6700\u4f4e\u9650\u4ee5\u4e0b\u3092\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u6e96\u62e0\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>[code lang=text]<br \/>\n_dmarc IN TXT &quot;v=DMARC1\\; p=none\\;&quot;<br \/>\n[\/code]<\/p>\n<p>\u53c2\u8003\uff09 <a href=\"https:\/\/support.google.com\/a\/answer\/10032169\" class=\"ext-link\" rel=\"external nofollow\" target=\"_blank\">Google: DMARC \u30ec\u30b3\u30fc\u30c9\u3092\u5b9a\u7fa9\u3059\u308b<\/a><\/p>\n<blockquote><p>\n  DMARC \u306e\u4f7f\u7528\u3092\u958b\u59cb\u3059\u308b\u3068\u304d\u306f\u3001\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528\u8a2d\u5b9a\u306b none \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\n<\/p><\/blockquote>\n<h2>3. DKIM \u3078\u306e\u5bfe\u5fdc<\/h2>\n<p>\u53d6\u308a\u6025\u304e\u30e1\u30e2 \u53c2\u8003 https:\/\/www.rem-system.com\/dkim-postfix04\/<\/p>\n<h3>\u5fc5\u8981\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h3>\n<ul>\n<li>yum install epel-release<\/li>\n<li>yum install opendkim<\/li>\n<\/ul>\n<h3>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u521d\u671f\u8a2d\u5b9a<\/h3>\n<p>\/etc\/opendkim.conf<\/p>\n<ul>\n<li>Mode v \u3092 Mode sv \u306b\u5909\u66f4\n<ul>\n<li>s \u306f\u7f72\u540d\u5b9f\u884c\u3001 v \u306f\u7f72\u540d\u691c\u8a3c\u306a\u306e\u3067\u3001\u9001\u4fe1\u5c02\u7528\u3067\u3042\u308c\u3070 s \u3060\u3051\u3067\u3082\u3044\u3044\u306f\u305a<\/li>\n<\/ul>\n<\/li>\n<li>KeyFile \u6307\u5b9a\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\n<ul>\n<li>\u305d\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306eFrom\u4ee5\u5916\u7f72\u540d\u3057\u306a\u3044\u306a\u3089\uff08\u3059\u3079\u3066\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u3064\u3044\u3066\u540c\u4e00\u306e\u9375\u306a\u3089\uff09\u3053\u3061\u3089\u306e\u6307\u5b9a\u3067\u3044\u3044\u306f\u305a<\/li>\n<\/ul>\n<\/li>\n<li>KetTable \u6307\u5b9a\n<ul>\n<li>KeyFile \u306e\u4ee3\u308f\u308a\u306bFrom\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3054\u3068\u306b\u7f72\u540d\u30eb\u30fc\u30eb\uff08\u9375\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u5229\u7528<\/li>\n<\/ul>\n<\/li>\n<li>\u540c\u69d8\u306b SigningTable \u3001 ExternalIgnoreList \u3001 InternalHosts \u6307\u5b9a\uff08\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\uff09<\/li>\n<li>SoftwareHeader yes \u3092 SoftwareHeader no \u306b\u5909\u66f4\n<ul>\n<li>OpenDKIM\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7b49\u304c\u8868\u793a\u3055\u308c\u308b\u304b\u3069\u3046\u304b<\/li>\n<li>\u30dd\u30ea\u30b7\u30fc\u306b\u3082\u3088\u308b\u304c\u3001\u8868\u793a\u3057\u306a\u3044\u65b9\u304c\u9069\u5207\u306a\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u306f<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306b\u30ad\u30fc\u30da\u30a2\u306e\u4f5c\u6210<\/h3>\n<p>\u60f3\u5b9a<br \/>\n- \u9375\u306e\u4fdd\u7ba1\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306f \/etc\/opendkim\/keys\/[FROM\u3068\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u540d]\/<br \/>\n- opendkim \u306e\u5b9f\u884c\u30e6\u30fc\u30b6\u30fc\u3001\u30b0\u30eb\u30fc\u30d7\u306f opendkim.opendkim<\/p>\n<p>[code lang=text]<br \/>\n# example.com \u306e\u305f\u3081\u306e\u30ad\u30fc\u30da\u30a2\u3092\u3001\u30bb\u30ec\u30af\u30bf\u30fc\u540d\u300cserver-20240129\u300d\u3067\u4f5c\u6210\u3059\u308b\u5834\u5408<br \/>\nopendkim-genkey -D \/etc\/opendkim\/keys\/example.com\/ -d example.com -s server-20240129<br \/>\nchown -R opendkim:opendkim \/etc\/opendkim\/keys\/example.com\/<br \/>\n[\/code]<\/p>\n<p>[\u30bb\u30ec\u30af\u30bf\u30fc\u540d].private \u306f\u79d8\u5bc6\u9375\uff08\u30b5\u30fc\u30d0\u30fc\u3067\u4fdd\u7ba1\uff09\u3001<\/p>\n<p>[\u30bb\u30ec\u30af\u30bf\u30fc\u540d].txt \u306f\u516c\u958b\u9375\u60c5\u5831\uff08DNS\u306b\u516c\u958b\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u60c5\u5831\uff09<br \/>\n\u2192 \u3053\u308c\u3092 [\u30bb\u30ec\u30af\u30bf\u30fc\u540d]._domainkey.example.com \u306e TXT \u30ec\u30b3\u30fc\u30c9\uff08\u3064\u307e\u308aDKIM\u30ec\u30b3\u30fc\u30c9\uff09\u3068\u3057\u3066\u8a2d\u5b9a\u3059\u308b<\/p>\n<h3>KeyTable , SigningTable \u306e\u8a2d\u5b9a<\/h3>\n<ul>\n<li>KeyTable \u306f\u3001DKIM\u30ec\u30b3\u30fc\u30c9\u306e\u30e9\u30d9\u30eb\u3001\u5bfe\u5fdc\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u3001 \u30bb\u30ec\u30af\u30bf\u30fc\u540d\u3001\u5bfe\u5fdc\u3059\u308b\u79d8\u5bc6\u9375 \u306e\u5bfe\u5fdc\u3092\u66f8\u304f<\/li>\n<li>SigningTable \u306f FROM \u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3057\u3066\u3069\u306eDKIM\u30ec\u30b3\u30fc\u30c9\u3092\u5229\u7528\u3057\u3066\u7f72\u540d\u3059\u308b\u304b\u306e\u5bfe\u5fdc\u3092\u66f8\u304f<\/li>\n<\/ul>\n<p>\u4eee\u306b @examle.com \uff08@ \u524d\u306f\u4f55\u3067\u3082\uff09\u304cFrom\u306b\u306a\u3063\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u3092\u540c\u4e00\u306eDKIM\u30ec\u30b3\u30fc\u30c9\uff08\u30bb\u30ec\u30af\u30bf\u30fc\u540d server-20240129 \uff09\u3067\u7f72\u540d\u3057\u3066\u3044\u308b\u3068\u3059\u308b\u5834\u5408\u3001<\/p>\n<p>KeyTable<\/p>\n<p>[code lang=text]<br \/>\nserver-20240129._domainkey.example.com example.com:server-20240129:\/etc\/opendkim\/keys\/example.com\/server-20240129.private<br \/>\n[\/code]<\/p>\n<p>SigningTable<\/p>\n<p>[code lang=text]<br \/>\n*@example.com server-20240129._domainkey.example.com<br \/>\n[\/code]<\/p>\n<h3>ExternalIgnoreList , InternalHosts  \u306b\u3064\u3044\u3066<\/h3>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3060\u3068\u540c\u4e00\u306e\u30d5\u30a1\u30a4\u30eb TrustedHosts \u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3002<br \/>\n\u30ed\u30fc\u30ab\u30eb\u30db\u30b9\u30c8\u3067\u306e\u9001\u4fe1\u306b\u3064\u3044\u3066\u306e\u8a2d\u5b9a\u306a\u9650\u308a\u3001\u7279\u306b\u6307\u5b9a\u3092\u3044\u3058\u308b\u3053\u3068\u306f\u306a\u3044\u3002<br \/>\n\u203b\u4e2d\u7d99\u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u5fc5\u8981<\/p>\n<p>\u3053\u3053\u307e\u3067\u3067 opendkim \u306e\u8a2d\u5b9a\u306f\u5b8c\u4e86\u3002<br \/>\n<code>service opendkim start<\/code> \u3084 <code>systemctl start opendkim<\/code> \u7b49\u3092\u8a66\u3059\u3002<\/p>\n<p>\u6b63\u5e38\u306b opendkim \u304c\u52d5\u4f5c\u3059\u308b\u3088\u3046\u3067\u3042\u308c\u3070 postfix \u306b milter \u3068\u3057\u3066\u305d\u306e opendkim \u3092\u4f7f\u3046\u3088\u3046\u306b\u8a2d\u5b9a\u3002<\/p>\n<p>\/etc\/postfix\/main.cf<\/p>\n<p>[code lang=text]<br \/>\n## DKIM<br \/>\nsmtpd_milters = inet:127.0.0.1:8891<br \/>\nnon_smtpd_milters = $smtpd_milters<br \/>\nmilter_default_action = accept<br \/>\n[\/code]<\/p>\n<h2>\u30b9\u30af\u30ea\u30d7\u30c8\u30b5\u30f3\u30d7\u30eb<\/h2>\n<p>postfix \/ opendkim \u306f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3001\u8a2d\u5b9a\u6e08\u307f<br \/>\n\u9375\u4f5c\u6210\u304b\u3089\u3002<\/p>\n<p>[code lang=text]<br \/>\n#! \/bin\/bash<\/p>\n<p># \u8a2d\u5b9a<br \/>\nSRV=server<br \/>\nDOMAIN=example.com<br \/>\nSELECTOR=${SRV}-$(date +&#039;%Y%m%d&#039;)<\/p>\n<p>DKIM_LABEL=${SELECTOR}._domainkey.${DOMAIN}<\/p>\n<p>OPENDKIM_DIR=\/etc\/opendkim<br \/>\nDOMAIN_DIR=${OPENDKIM_DIR}\/keys\/${DOMAIN}<br \/>\nKEY=${DOMAIN_DIR}\/${SELECTOR}.private<\/p>\n<p># \u30ad\u30fc\u30da\u30a2\u4f5c\u6210<br \/>\ncd ${OPENDKIM_DIR}<br \/>\nmkdir -p ${DOMAIN_DIR}<br \/>\nopendkim-genkey -D ${DOMAIN_DIR} -d ${DOMAIN} -s ${SELECTOR}<br \/>\nchown -R opendkim. ${DOMAIN_DIR}<\/p>\n<p># opendkim \u8a2d\u5b9a\u30c6\u30fc\u30d6\u30eb\u8ffd\u8a18<br \/>\ncat &lt;&lt; _EOT_ &gt;&gt; KeyTable<\/p>\n<p>${DKIM_LABEL} ${DOMAIN}:${SELECTOR}:${KEY}<br \/>\n_EOT_<\/p>\n<p>cat &lt;&lt; _EOT_ &gt;&gt; SigningTable<\/p>\n<p>*@${DOMAIN} ${DKIM_LABEL}<br \/>\n_EOT_<\/p>\n<p>[\/code]<\/p>\n<p>\/etc\/postfix\/main.cf \u3078\u306e\u8ffd\u8a18\uff08\u8ffd\u8a18\u5f8c <code>service postfix reload<\/code> \u3084 <code>systemctl reload postfix<\/code> \u3067\u9069\u7528\uff09<br \/>\n\u203b\u540c\u3058\u8a2d\u5b9a\u9805\u76ee\u304c\u65e2\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u4f55\u304b\u4e8b\u60c5\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f<\/p>\n<p>[code lang=text]<br \/>\n## TLS\u9001\u4fe1<br \/>\nsmtp_tls_security_level = may<br \/>\nsmtp_tls_CAfile = \/etc\/pki\/tls\/cert.pem<br \/>\nsmtp_tls_loglevel = 1<\/p>\n<p>## DKIM<br \/>\nsmtpd_milters = inet:127.0.0.1:8891<br \/>\nnon_smtpd_milters = $smtpd_milters<br \/>\nmilter_default_action = accept<br \/>\n[\/code]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Google \u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u4e3b\u306a\u5bfe\u5fdc Google: \u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3 \u5bfe\u8c61\u3068\u306a\u308b\u6761\u4ef6\uff08\u5f15\u7528\uff09 Gmail \u3067\u306f 2024 \u5e74 2 \u6708\u4ee5\u964d\u3001Gmail \u30a2\u30ab\u30a6\u30f3\u30c8\u306b 1 \u65e5\u3042\u305f\u308a 5,000 \u4ef6\u4ee5\u4e0a\u306e\u30e1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[87,65,69,89],"tags":[],"class_list":["post-2785","post","type-post","status-publish","format-standard","hentry","category-almalinux","category-centos","category-domain_dns","category-89"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1212,"url":"https:\/\/wp.kaz.bz\/tech\/2012\/07\/20\/1212.html","url_meta":{"origin":2785,"position":0},"title":"\u30e1\u30fc\u30e9\u30fc\u304c\u306a\u304f\u3066\u3082 telnet \u3067\u30e1\u30fc\u30eb\u3092\u9001\u308b\u65b9\u6cd5\u3002","author":"kaz. Suenaga","date":"2012\/07\/20","format":false,"excerpt":"\u534a\u5206\u30cd\u30bf\u3060\u3051\u3069\u7d50\u69cb\u5927\u4e8b\u3060\u3068\u601d\u3046\u3053\u306e\u624b\u306e\u304a\u8a71\u3002 \u4efb\u610f\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff08\u4f8b\uff1a info@example.\u2026","rel":"","context":"\u30b3\u30de\u30f3\u30c9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9","block_context":{"text":"\u30b3\u30de\u30f3\u30c9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9","link":"https:\/\/wp.kaz.bz\/tech\/category\/cmdref"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1222,"url":"https:\/\/wp.kaz.bz\/tech\/2012\/07\/20\/1222.html","url_meta":{"origin":2785,"position":1},"title":"\u30ec\u30b8\u30b9\u30c8\u30e9\u304c\u767b\u9332\u30c9\u30e1\u30a4\u30f3\u3092\u3001\u505c\u6b62\u3067\u306f\u306a\u304fNS\u3092\u66f8\u304d\u63db\u3048\u308b\uff08\u305d\u3057\u3066\u30ec\u30b8\u30b9\u30c8\u30ea\u304c\u305d\u308c\u3092\u8a31\u53ef\u3057\u3066\u3044\u308b\uff09\u3001\u3068\u3044\u3046\u3053\u3068\u3002","author":"kaz. Suenaga","date":"2012\/07\/20","format":false,"excerpt":"\u3067\u3001\u3053\u3063\u3061\u304c\u672c\u984c\u3002 \u666e\u6bb5\u306f\u3042\u307e\u308a\u3001\u3053\u3046\u3044\u3046\u4e8b\u8c61\u306b\u3064\u3044\u3066\u306f\u89e6\u308c\u306a\u3044\uff08\u3064\u3076\u3084\u304f\u7a0b\u5ea6\uff09\u306b\u3057\u3066\u3044\u308b\u3093\u3067\u3059\u304c\u3001\u2026","rel":"","context":"\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3","block_context":{"text":"\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3","link":"https:\/\/wp.kaz.bz\/tech\/category\/security"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1703,"url":"https:\/\/wp.kaz.bz\/tech\/2013\/07\/03\/1703.html","url_meta":{"origin":2785,"position":2},"title":"OpenSSH\u3067\u306e\u516c\u958b\u9375\u8a8d\u8a3c\u3002","author":"kaz. Suenaga","date":"2013\/07\/03","format":false,"excerpt":"SSH\u30ed\u30b0\u30a4\u30f3\u6642\u306e\u8a8d\u8a3c\u65b9\u5f0f\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u8a8d\u8a3c\u30fb\u516c\u958b\u9375\u8a8d\u8a3c\uff09\u306b\u3064\u3044\u3066\u306e\u8003\u5bdf\u3067\u3059\u3002 \u516c\u958b\u9375\u6697\u53f7 \u516c\u958b\u9375\u8a8d\u8a3c\u2026","rel":"","context":"OpenSSH","block_context":{"text":"OpenSSH","link":"https:\/\/wp.kaz.bz\/tech\/category\/servers\/openssh"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":759,"url":"https:\/\/wp.kaz.bz\/tech\/2011\/03\/31\/759.html","url_meta":{"origin":2785,"position":3},"title":"qmail\u3067\u30bb\u30ab\u30f3\u30c0\u30ea\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u3092\u7acb\u3066\u308b\u969b\u306e\u8a2d\u5b9a\u3002","author":"kaz. Suenaga","date":"2011\/03\/31","format":false,"excerpt":"qmail \uff08 net-qmail \u306a\u3069 qmail \u3092\u30d9\u30fc\u30b9\u306b\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0 \uff09\u3092\u5229\u7528\u3057\u3066\u30bb\u2026","rel":"","context":"qmail \/ vpopmail","block_context":{"text":"qmail \/ vpopmail","link":"https:\/\/wp.kaz.bz\/tech\/category\/servers\/djb\/qmail-vpopmail"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":634,"url":"https:\/\/wp.kaz.bz\/tech\/2011\/02\/03\/634.html","url_meta":{"origin":2785,"position":4},"title":"daemontools + ucspi-tcp + djbdns(dnscache) + netqmail =","author":"kaz. Suenaga","date":"2011\/02\/03","format":false,"excerpt":"\u4e00\u6c17\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u6c7a\u3081\u3046\u3061\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u3059\u3002 \/usr\/local\/src\/djb \u3068\u304b\u306b ins\u2026","rel":"","context":"DJB","block_context":{"text":"DJB","link":"https:\/\/wp.kaz.bz\/tech\/category\/servers\/djb"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":852,"url":"https:\/\/wp.kaz.bz\/tech\/2011\/06\/03\/852.html","url_meta":{"origin":2785,"position":5},"title":"postfix + dovecot \u3067\u4eee\u60f3\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3002","author":"kaz. Suenaga","date":"2011\/06\/03","format":false,"excerpt":"postfix + dovecot \u3067\u4eee\u60f3\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3002 \u30c6\u30b9\u30c8\u9001\u4fe1\uff0b\u53d7\u4fe1\u4ed8\u3002\u2026","rel":"","context":"postfix_dovecot","block_context":{"text":"postfix_dovecot","link":"https:\/\/wp.kaz.bz\/tech\/category\/servers\/postfix_dovecot"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/posts\/2785","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/comments?post=2785"}],"version-history":[{"count":4,"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/posts\/2785\/revisions"}],"predecessor-version":[{"id":2793,"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/posts\/2785\/revisions\/2793"}],"wp:attachment":[{"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/media?parent=2785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/categories?post=2785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.kaz.bz\/tech\/wp-json\/wp\/v2\/tags?post=2785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}