{"id":6268,"date":"2016-08-01T18:26:17","date_gmt":"2016-08-01T09:26:17","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=6268"},"modified":"2016-08-01T18:26:17","modified_gmt":"2016-08-01T09:26:17","slug":"submission-port-587%e3%81%b8%e3%81%aeipv6%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9-slackware-14-2%e3%81%b8%e3%81%9d%e3%81%ae14","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=6268","title":{"rendered":"Submission port (587)\u3078\u306eIPv6\u30a2\u30af\u30bb\u30b9 (Slackware 14.2\u3078\u305d\u306e13)"},"content":{"rendered":"

これは，Slackware 14.2のupgradeに直接関する問題ではなくて，IPv6化<\/a>したあとの5か月越しの懸案でした．わが家のsendmailへ，IPv6ではsubmission port (587)へ接続できないのです．<\/p>\n

lsof -i | grep sendmail\nsendmail\u00a0 29512\u00a0\u00a0 root\u00a0\u00a0\u00a0 4u\u00a0 IPv6 1301137\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:smtp (LISTEN)\nsendmail\u00a0 29512\u00a0\u00a0 root\u00a0\u00a0\u00a0 5u\u00a0 IPv6 1301138\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:smtps (LISTEN)\nsendmail\u00a0 29512\u00a0\u00a0 root\u00a0\u00a0\u00a0 6u\u00a0 IPv4<\/strong><\/span> 1301139\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:submission (LISTEN)<\/pre>\n
てな具合です．そこで，ネット検索結果を参考に，sendmail.mcに，<\/p>\n
DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea, Family=inet6')dnl<\/pre>\n
と加えて，なんやかんやしてsendmailをリスタートすると，<\/p>\n
opendaemonsocket: daemon MSA: cannot listen: Address already in use<\/pre>\n
てな，エラーが出続けます．<\/p>\n
想像するに，既に，IPv4オンリーでMSAが立ち上がったあとで，IPv6オプションを明示したMSAをもう一度立ち上げようとしている（あるいはその逆の順番）ことは解ります．だから，勝手に立ち上がるMSAを止めたい．<\/p>\n
いつもながら，解ってしまえば簡単なことなんです．次のようなFEATURE文を一行書くだけです1<\/a><\/sup>もちろん，上記のDAEMON_OPTIONS…<\/strong>も必要です．<\/span>．<\/p>\n
FEATURE(`no_default_msa')dnl<\/pre>\n
無事動くようになりましたとさ．<\/p>\n
sendmail\u00a0 29792\u00a0\u00a0 root\u00a0\u00a0\u00a0 4u\u00a0 IPv6 1212952\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:smtp (LISTEN)\nsendmail\u00a0 29792\u00a0\u00a0 root\u00a0\u00a0\u00a0 5u\u00a0 IPv6 1212953\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:smtps (LISTEN)\nsendmail\u00a0 29792\u00a0\u00a0 root\u00a0\u00a0\u00a0 6u\u00a0 IPv6<\/strong><\/span> 1212954\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:submission (LISTEN)<\/pre>\n
めでたしめでたし．<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u308c\u306f\uff0cSlackware 14.2\u306eupgrade\u306b\u76f4\u63a5\u95a2\u3059\u308b\u554f\u984c\u3067\u306f\u306a\u304f\u3066\uff0cIPv6\u5316\u3057\u305f\u3042\u3068\u306e5\u304b\u6708\u8d8a\u3057\u306e\u61f8\u6848\u3067\u3057\u305f\uff0e\u308f\u304c\u5bb6\u306esendmail\u3078\uff0cIPv6\u3067\u306fsubmission port (587)\u3078\u63a5\u7d9a\u3067\u304d\u306a\u3044\u306e\u3067\u3059\uff0e lsof -i | grep sendmail sendmail\u00a0 29512\u00a0\u00a0 root\u00a0\u00a0\u00a0 4u\u00a0 IPv6 1301137\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:smtp (LISTEN) sendmail\u00a0 29512\u00a0\u00a0 root\u00a0\u00a0\u00a0 5u\u00a0 IPv6 1301138\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:smtps (LISTEN) sendmail\u00a0 29512\u00a0\u00a0 root\u00a0\u00a0\u00a0 6u\u00a0 IPv4 1301139\u00a0\u00a0\u00a0\u00a0\u00a0 0t0\u00a0 TCP *:submission (LISTEN) \u3066\u306a\u5177\u5408\u3067\u3059\uff0e\u305d\u3053\u3067\uff0c\u30cd\u30c3\u30c8\u691c\u7d22\u7d50\u679c\u3092\u53c2\u8003\u306b\uff0csendmail.mc\u306b\uff0c DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea, Family=inet6′)dnl \u3068\u52a0\u3048\u3066\uff0c\u306a\u3093\u3084\u304b\u3093\u3084\u3057\u3066sendmail\u3092\u30ea\u30b9\u30bf\u30fc\u30c8\u3059\u308b\u3068\uff0c opendaemonsocket: daemon MSA: cannot listen: Address already in use \u3066\u306a\uff0c\u30a8\u30e9\u30fc\u304c\u51fa\u7d9a\u3051\u307e\u3059\uff0e … Continue reading “Submission port (587)\u3078\u306eIPv6\u30a2\u30af\u30bb\u30b9 (Slackware 14.2\u3078\u305d\u306e13)”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_daextam_enable_autolinks":"","footnotes":""},"categories":[1],"tags":[239,240,309,393,402],"class_list":["post-6268","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-ipv4","tag-ipv6","tag-msa","tag-sendmail","tag-slackware"],"publishpress_future_action":{"enabled":false,"date":"2026-04-15 09:14:26","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/6268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6268"}],"version-history":[{"count":0,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/6268\/revisions"}],"wp:attachment":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}