{"id":913,"date":"2018-03-12T08:18:56","date_gmt":"2018-03-12T08:18:56","guid":{"rendered":"http:\/\/192.168.2.32:8082\/?p=913"},"modified":"2018-12-28T09:52:16","modified_gmt":"2018-12-28T09:52:16","slug":"iredmail-unban-ip-adresse","status":"publish","type":"post","link":"https:\/\/www.dev-metal.ch\/?p=913","title":{"rendered":"IRedMail: Unban IP Adresse"},"content":{"rendered":"<p>Nach einigen &#8222;Modifikationen&#8220; auf meinen Mail-Server schlug fail2ban zu und blockierte meine IP mit<\/p>\n<pre class=\"lang:sh decode:true \">reject-with icmp-port-unreachable<\/pre>\n<p>Nach einem kurzen Check auf iptables war auch klar wieso:<\/p>\n<pre class=\"lang:sh decode:true\">&gt; sudo iptables -L -n\r\n\r\nChain fail2ban-dovecot (1 references)\r\ntarget     prot opt source               destination         \r\nREJECT     all  --  1.2.3.4              0.0.0.0\/0            reject-with icmp-port-unreachable\r\n<\/pre>\n<p>Um die IP wieder freizuschalten geht man folgendermassen vor:<\/p>\n<p>Ermitteln des fail2ban jails<\/p>\n<pre class=\"lang:sh decode:true\">&gt; sudo fail2ban-client status\r\n\r\nStatus\r\n|- Number of jail:\t5\r\n`- Jail list:\t\tssh-iredmail, roundcube-iredmail, w00tw00t-scans, dovecot-iredmail, postfix-iredmail<\/pre>\n<p>Dabei erkennt man, dass der Jail-name dovecot-iredmail mit der\u00a0 iptables chain fail2ban-dovecot korrespondiert. Das ist also die jail, um welche es sich dreht.<\/p>\n<p>Nun die Ip wieder freischalten<\/p>\n<pre class=\"lang:sh decode:true\">&gt; sudo fail2ban-client set dovecot-iredmail unbanip 1.2.3.4<\/pre>\n<p>Ein weiterer check mit iptables zeigt, dass die Freischaltung funktioniert hat:<\/p>\n<pre class=\"lang:sh decode:true \">&gt; sudo iptables -L -n\r\n\r\nChain fail2ban-dovecot (1 references)\r\ntarget     prot opt source               destination         \r\nRETURN     all  --  0.0.0.0\/0            0.0.0.0\/0<\/pre>\n<h1>Referenz<\/h1>\n<p><a href=\"https:\/\/serverfault.com\/questions\/285256\/how-to-unban-an-ip-properly-with-fail2ban\" target=\"_blank\" rel=\"noopener\">Serverfault: Fail2ban &#8211; unpan ip<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nach einigen &#8222;Modifikationen&#8220; auf meinen Mail-Server schlug fail2ban zu und blockierte meine IP mit reject-with icmp-port-unreachable Nach einem kurzen Check auf iptables war auch klar wieso: &gt; sudo iptables -L -n Chain fail2ban-dovecot (1 references) target prot opt source destination REJECT all &#8212; 1.2.3.4 0.0.0.0\/0 reject-with icmp-port-unreachable Um die IP wieder freizuschalten geht man folgendermassen [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[31,10],"tags":[23],"class_list":["post-913","post","type-post","status-publish","format-standard","hentry","category-iredmail","category-techdocs","tag-mailserver"],"modified_by":"ralph","_links":{"self":[{"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=\/wp\/v2\/posts\/913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=913"}],"version-history":[{"count":5,"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=\/wp\/v2\/posts\/913\/revisions"}],"predecessor-version":[{"id":918,"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=\/wp\/v2\/posts\/913\/revisions\/918"}],"wp:attachment":[{"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dev-metal.ch\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}