{"id":401,"date":"2020-09-10T22:38:03","date_gmt":"2020-09-10T13:38:03","guid":{"rendered":"https:\/\/www.wetch.co.jp\/?p=401"},"modified":"2022-01-25T22:44:49","modified_gmt":"2022-01-25T13:44:49","slug":"dovecot%e3%82%92%e3%82%a2%e3%83%83%e3%83%97%e3%82%b0%e3%83%ac%e3%83%bc%e3%83%89%e3%81%97%e3%81%9f%e3%82%89%e5%8f%97%e4%bf%a1%e3%81%a7%e3%81%8d%e3%81%aa%e3%81%8f%e3%81%aa%e3%81%a3%e3%81%9f","status":"publish","type":"post","link":"https:\/\/www.wetch.co.jp\/note\/dovecot%e3%82%92%e3%82%a2%e3%83%83%e3%83%97%e3%82%b0%e3%83%ac%e3%83%bc%e3%83%89%e3%81%97%e3%81%9f%e3%82%89%e5%8f%97%e4%bf%a1%e3%81%a7%e3%81%8d%e3%81%aa%e3%81%8f%e3%81%aa%e3%81%a3%e3%81%9f\/","title":{"rendered":"Dovecot\u3092\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f\u3089\u53d7\u4fe1\u3067\u304d\u306a\u304f\u306a\u3063\u305f"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Dovecot v2.2\u304b\u3089v2.3\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f\u3089\u30e1\u30fc\u30e9\u30fc\u3067\u53d7\u4fe1\u30a8\u30e9\u30fc\u306b\u3002<br>\u30a8\u30e9\u30fc\u30ed\u30b0\u898b\u308b\u3068imap\u306eSSL\u306e\u3068\u3053\u308d\u3067\u30b3\u30b1\u3066\u308b\u3002\u3002<br>\u3061\u306a\u307f\u306bOS\u306fCentOS7\u3067\u3059<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nimap-login: Disconnected: TLS initialization failed. (no auth attempts in 0 secs): user=&amp;lt;&gt;, rip=\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7, lip=\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7, session=\nimap-login: Error: Failed to initialize SSL server context: Can&#039;t load DH parameters: error:1408518A:SSL routines:ssl3_ctx_ctrl:dh key too small: user=&amp;lt;&gt;, rip=\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7, lip=\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7.\u00d7\u00d7\u00d7, session=&amp;lt;8\/AjmPOuVvaW+c1i&gt;\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u30cd\u30c3\u30c8\u3067\u30b0\u30b0\u308b\u3068\u3001\u3069\u3046\u3082dovecot2.3\u304b\u3089\u5f93\u6765\u306essl-parameter.dat\u30d5\u30a1\u30a4\u30eb\u304c\u5ec3\u6b62\u3055\u308c\u3066\u3001ssl_dh\u306e\u8a2d\u5b9a\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3089\u3057\u3044\u3002<br>\u53c2\u8003\u30b5\u30a4\u30c8\uff1ahttps:\/\/wiki2.dovecot.org\/Upgrading\/2.3#dhparams<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067\u3001<br>\/etc\/dovecot\/conf.d\/10-ssl.conf\u306e\u4ee5\u4e0b\u3092\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nssl_dh = &amp;lt;\/etc\/dovecot\/dh.pem\nssl_min_protocol = TLSv1\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3057\u305f\u306e\u3067\u3001\/etc\/dovecot\/ \u914d\u4e0b\u306bDH\u30d1\u30e9\u30e1\u30fc\u30bf dh.pem\u3092\u4f5c\u6210\u3002<br>2048\u30d3\u30c3\u30c8\u4ee5\u4e0a\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3088\u3046\u3067\u3001\u63a8\u5968\u304c4096\u30d3\u30c3\u30c8\u3089\u3057\u3044\u306e\u3067\u30014096\u30d3\u30c3\u30c8\u3067\u4f5c\u6210\u3002<br>\u3053\u308c\u304c\u307e\u3060\u4f5c\u6210\u3059\u308b\u306e\u306b\u30a8\u30e9\u30a4\u6642\u9593\u304c\u304b\u304b\u308b\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30b9\u30da\u30c3\u30af\u306b\u3088\u308b\u3068\u601d\u3046\u3051\u3069\u79c1\u304c\u4f5c\u6210\u3057\u305f\u6642\u306f1\u6642\u9593\u5f31\u3050\u3089\u3044\u639b\u304b\u308a\u307e\u3057\u305f\u3002\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nopenssl dhparam -out \/etc\/dovecot\/dh.pem 4096\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4f5c\u6210\u304c\u7d42\u308f\u3063\u305f\u3089Dovecot\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n#systemctl restart dovecot\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3067\u7121\u4e8b\u30e1\u30fc\u30e9\u304b\u3089\u306e\u53d7\u4fe1\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<br>\u65b0\u3057\u304f\u69cb\u7bc9\u4e2d\u306e\u30b5\u30fc\u30d0\u30fc\u3060\u3063\u305f\u304b\u3089\u826f\u304b\u3063\u305f\u3082\u306e\u306e\u3001\u30db\u30f3\u30c8\u6016\u3044\u6016\u3044(\u7b11)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dovecot\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067SSL\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u4f7f\u7528\u3057\u306a\u304f\u3066\u3044\u3044\u306a\u3089SSL\u3092\u5fc5\u9808\u3067\u306a\u3044\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3082\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/etc\/dovecot\/conf.d\/10-ssl.conf\u306e\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u3066Dovecot\u3092\u518d\u8d77\u52d5<br>ssl = required<br>\u2193<br>ssl = yes(110\u756a\u3068995\u756a) \u307e\u305f\u306f no(110\u756a\u306e\u307f) \u306b<br><br>SSL\u306a\u3057\u306e\u8a8d\u8a3c\u3092\u8a31\u53ef\u3057\u305f\u3044\u5834\u5408\u3001\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u8a8d\u8a3c\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3001\/etc\/dovecot\/conf.d\/10-auth.conf\u306e<code>disable_plaintext_auth<\/code> = no \u306b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dovecot v2.2\u304b\u3089v2.3\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f\u3089\u30e1\u30fc\u30e9\u30fc\u3067\u53d7\u4fe1\u30a8\u30e9\u30fc\u306b\u3002\u30a8\u30e9\u30fc\u30ed\u30b0\u898b\u308b\u3068imap\u306eSSL\u306e\u3068\u3053\u308d\u3067\u30b3\u30b1\u3066\u308b\u3002\u3002\u3061\u306a\u307f\u306bOS\u306fCentOS7\u3067\u3059 \u30cd\u30c3\u30c8\u3067\u30b0\u30b0\u308b\u3068\u3001\u3069\u3046\u3082dovecot2.3\u304b\u3089\u5f93 [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":511,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"categories":[213],"tags":[],"class_list":["post-401","post","type-post","status-publish","format-standard","has-post-thumbnail","category-213"],"_links":{"self":[{"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/posts\/401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/comments?post=401"}],"version-history":[{"count":0,"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/posts\/401\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/media\/511"}],"wp:attachment":[{"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/media?parent=401"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/categories?post=401"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wetch.co.jp\/note\/wp-json\/wp\/v2\/tags?post=401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}