61 lines
2.8 KiB
HTML
61 lines
2.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Fixes you need after upgrading Debian from 8 to 9</title>
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<link rel="stylesheet" type="text/css" href="./css/markdown.css" />
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</head>
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<body>
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<div id="navigation">
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<a href="https://www.iredmail.org" target="_blank">
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<img alt="iRedMail web site"
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src="./images/logo-iredmail.png"
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style="vertical-align: middle; height: 30px;"
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/>
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<span>iRedMail</span>
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</a>
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// <a href="./index.html">Document Index</a></div><h1 id="fixes-you-need-after-upgrading-debian-from-8-to-9">Fixes you need after upgrading Debian from 8 to 9</h1>
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<div class="toc">
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<ul>
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<li><a href="#fixes-you-need-after-upgrading-debian-from-8-to-9">Fixes you need after upgrading Debian from 8 to 9</a><ul>
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<li><a href="#postfix">Postfix</a></li>
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<li><a href="#dovecot">Dovecot</a></li>
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<li><a href="#fail2ban">Fail2ban</a></li>
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</ul>
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</li>
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</ul>
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</div>
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<h2 id="postfix">Postfix</h2>
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<p>Run commands:</p>
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<pre><code># Backup files
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cp /etc/postfix/main.cf /etc/postfix/main.cf.bak
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cp /etc/postfix/master.cf /etc/postfix/master.cf.bak
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# Update main.cf and master.cf
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postconf -e daemon_directory='/usr/lib/postfix/sbin'
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postconf -e shlib_directory='/usr/lib/postfix'
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postconf -e compatibility_level=2
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for i in $(postconf -Mf | grep '^[0-9a-zA-Z]' | awk '{print $1"/"$2"/chroot=n"}'); do postconf -F $i; done
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</code></pre>
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<ul>
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<li>Incorrect <code>daemon_directory</code> causes Postfix cannot start.</li>
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<li>Incorrect <code>shlib_directory</code> causes Postfix cannot find pcre/mysql/pgsql/ldap modules.</li>
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<li>Debian 8 ships Postfix 2.x, but Debian 9 ships Postfix 3.x, we need to disable compatible mode.</li>
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</ul>
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<h2 id="dovecot">Dovecot</h2>
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<p>Please remove <code>!SSLv2</code> from parameter <code>ssl_protocols</code>, and restart Dovecot service:</p>
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<pre><code>ssl_protocols = !SSLv3
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</code></pre>
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<h2 id="fail2ban">Fail2ban</h2>
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<p>There's a duplicate parameter in file <code>/etc/fail2ban/jail.conf</code>, under section
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<code>[pam-generic]</code> like below:</p>
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<pre><code>[pam-generic]
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...
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port = all
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...
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port = anyport
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</code></pre>
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<p>Comment out <code>port = anyport</code> and restart fail2ban service.</p><div class="footer">
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<p style="text-align: center; color: grey;">All documents are available in <a href="https://github.com/iredmail/docs/">GitHub repository</a>, and published under <a href="http://creativecommons.org/licenses/by-nd/3.0/us/" target="_blank">Creative Commons</a> license. You can <a href="https://github.com/iredmail/docs/archive/master.zip">download the latest version</a> for offline reading. If you found something wrong, please do <a href="https://www.iredmail.org/contact.html">contact us</a> to fix it.</p>
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