New: howto/0-performance.tuning.md, 3 tips added.
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Zhang Huangbin
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@ -36,7 +36,6 @@ all_chapter_dirs="overview \
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upgrade \
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migrations \
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howto \
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performance.tunning \
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integrations \
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cluster \
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troubleshooting \
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@ -0,0 +1,24 @@
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# Performance tuning
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[TOC]
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If you're running a busy mail server (many inbound/outbound emails every day),
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you can follow below suggestions for better performance.
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### Setup a DNS server in LAN or localhost to cache DNS queries
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Mail services heavily rely on DNS service and perform many many DNS queries,
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a cache DNS server in LAN or localhost helps a lot.
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### Enable postscreen service to help reduce spam
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* [Enable postscreen service](./enable.postscreen.html)
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If you don't want to use postscreen service, you can [enable DNSBL service](./enable.dnsbl.html)
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instead, it helps a lot too, but less effective than postscreen service.
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postscreen and DNSBL service help catch a lot spam, save much system resource.
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### Update Amavisd + Postfix config files to process more emails concurrently
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* [Process more emails concurrently](./concurrent.processing.html)
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# Amavisd: process more emails concurrently
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# Process more emails concurrently
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__WARNING__: Processing more concurrent emails require more RAM.
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Amavisd-new is content filter, it invokes SpamAssassin and ClamAV for
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spam/virus scanning, it also offers additional features like DKIM signing and
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@ -0,0 +1,30 @@
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# Enable postscreen service
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__WARNING__: With postscreen service enabled, your users must use port 587 to
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send email, port 25 will be used by postscreen service instead of normal smtp
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service.
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iRedMail ships a script to enable postscreen. You can enable it with steps below:
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* Download script `enable_postscreen.sh` from [iRedMail source code repository](https://bitbucket.org/zhb/iredmail/src/default/iRedMail/tools/?at=default)
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* Upload this script to your iRedMail server, then below command to enable
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postscreen:
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```
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# bash enable_postscreen.sh
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```
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It uses several DNSBL servers by default, you'd better open
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`/etc/postfix/main.cf` (Linux/OpenBSD) or `/usr/local/etc/postfix/main.cf`
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(FreeBSD) to check the DNSBL servers it enabled, you're free to remove some
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DNSBL servers if you want.
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## See Also
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If you don't want to use postscreen service, you can [enable DNSBL service](./enable.dnsbl.html)
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instead, it helps a lot too, but less effective than postscreen service.
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## References
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* [Postfix Postscreen Howto](http://www.postfix.org/POSTSCREEN_README.html)
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* [Postfix manual page: postscreen(8)](http://www.postfix.org/postscreen.8.html)
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@ -1,7 +1,7 @@
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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>Amavisd: process more emails concurrently</title>
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<title>Process more emails concurrently</title>
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<link href="./css/markdown.css" rel="stylesheet"></head>
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</head>
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<body>
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@ -10,7 +10,8 @@
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<a href="http://www.iredmail.org" target="_blank">iRedMail web site</a>
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// <a href="./index.html">Document Index</a>
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</div><h1 id="amavisd-process-more-emails-concurrently">Amavisd: process more emails concurrently</h1>
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</div><h1 id="process-more-emails-concurrently">Process more emails concurrently</h1>
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<p><strong>WARNING</strong>: Processing more concurrent emails require more RAM.</p>
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<p>Amavisd-new is content filter, it invokes SpamAssassin and ClamAV for
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spam/virus scanning, it also offers additional features like DKIM signing and
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verification.</p>
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@ -0,0 +1,46 @@
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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>Enable postscreen service</title>
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<link href="./css/markdown.css" rel="stylesheet"></head>
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</head>
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<body>
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<div id="navigation">
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<a href="http://www.iredmail.org" target="_blank">iRedMail web site</a>
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// <a href="./index.html">Document Index</a>
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</div><h1 id="enable-postscreen-service">Enable postscreen service</h1>
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<p><strong>WARNING</strong>: With postscreen service enabled, your users must use port 587 to
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send email, port 25 will be used by postscreen service instead of normal smtp
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service.</p>
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<p>iRedMail ships a script to enable postscreen. You can enable it with steps below:</p>
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<ul>
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<li>Download script <code>enable_postscreen.sh</code> from <a href="https://bitbucket.org/zhb/iredmail/src/default/iRedMail/tools/?at=default">iRedMail source code repository</a></li>
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<li>Upload this script to your iRedMail server, then below command to enable
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postscreen:</li>
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</ul>
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<pre><code># bash enable_postscreen.sh
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</code></pre>
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<p>It uses several DNSBL servers by default, you'd better open
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<code>/etc/postfix/main.cf</code> (Linux/OpenBSD) or <code>/usr/local/etc/postfix/main.cf</code>
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(FreeBSD) to check the DNSBL servers it enabled, you're free to remove some
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DNSBL servers if you want.</p>
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<h2 id="see-also">See Also</h2>
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<p>If you don't want to use postscreen service, you can <a href="./enable.dnsbl.html">enable DNSBL service</a>
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instead, it helps a lot too, but less effective than postscreen service.</p>
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<h2 id="references">References</h2>
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<ul>
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<li><a href="http://www.postfix.org/POSTSCREEN_README.html">Postfix Postscreen Howto</a></li>
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<li><a href="http://www.postfix.org/postscreen.8.html">Postfix manual page: postscreen(8)</a></li>
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</ul><p style="text-align: center; color: grey;">Document published under a <a href="http://creativecommons.org/licenses/by-nd/3.0/us/" target="_blank">CC BY-ND 3.0</a> license. If you found something wrong, please do <a href="http://www.iredmail.org/contact.html">contact us</a> to fix it.<script>
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(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
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m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
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})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
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ga('create', 'UA-3293801-21', 'auto');
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ga('send', 'pageview');
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</script>
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</body></html>
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@ -27,11 +27,22 @@
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</ul>
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</li>
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<li>
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<p><a href="./setup.dns.html">Setup DNS records for your iRedMail server</a></p>
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<p>After installtion:</p>
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<ul>
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<li><a href="./setup.dns.html">Setup DNS records for your iRedMail server</a></li>
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</ul>
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</li>
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<li>
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<p>Additional installation tips</p>
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<ul>
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<li><a href="./install.iredmail.with.remote.mysql.server.html">Install iRedMail with a remote MySQL server</a></li>
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<li><a href="./unattended.iredmail.installation.html">Perform silent/unattended iRedMail installation</a></li>
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</ul>
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</li>
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<li>
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<p><a href="./performance.tuning.html">Performance tuning for a busy server</a></p>
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</li>
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</ul>
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<h3 id="configure-mail-client-applications">Configure mail client applications</h3>
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<p>If you're using different mail clients, please help write documents to guide other users to setup the mail clients.</p>
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<ul>
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@ -69,8 +80,10 @@
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<li><a href="allow.user.to.send.email.without.authentication.html">Allow user to send email without authentication</a></li>
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<li><a href="amavisd.per-recipient.policy.lookup.html">Amavisd: Enable per-recipient policy lookup</a></li>
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<li><a href="change.server.hostname.html">Change server hostname</a></li>
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<li><a href="concurrent.processing.html">Process more emails concurrently</a></li>
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<li><a href="dovecot.master.user.html">Dovecot Master User</a></li>
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<li><a href="enable.dnsbl.html">Enable DNSBL service in Postfix to reduce spam</a></li>
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<li><a href="enable.postscreen.html">Enable postscreen service</a></li>
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<li><a href="force.user.to.change.password.html">Force mail user to change password in 90 days</a></li>
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<li><a href="ignore.trash.folder.in.quota.html">Ignore Trash folder in mailbox quota</a></li>
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<li><a href="ldap.add.alias.domain.html">LDAP: Add an alias domain</a></li>
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@ -98,10 +111,6 @@
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<ul>
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<li><a href="http://www.iredmail.org/forum/topic8169-iredmail-support-antispam-via-dovecot-and-spamassassin.html">Anti-spam with Dovecot antispam plugin and SpamAssassin</a>, contributed by Dexus.</li>
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</ul>
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<h3 id="performance-tunning">Performance tunning</h3>
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<ul>
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<li><a href="concurrent.processing.html">Amavisd: process more emails concurrently</a></li>
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</ul>
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<h3 id="third-party-integrations">Third-party integrations</h3>
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<p>Below tutorials are maintained by iRedMail project.</p>
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<ul>
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@ -204,6 +204,8 @@ automatically. Type <code>y</code> or <code>Y</code> and press <code>Enter</code
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
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<a href="http://www.startssl.com/?app=1">free SSL cert offerred by StartSSL.com</a>.
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We have a document for you to <a href="http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html">use a bought SSL certificate</a>.</li>
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<li>If you're running a busy mail server, we have <a href="./performance.tuning.html">some suggestions for better
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performance</a>.</li>
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</ul>
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<h2 id="access-webmail-and-other-web-applications">Access webmail and other web applications</h2>
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<p>After installation successfully completed, you can access web-based programs
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@ -207,6 +207,8 @@ automatically. Type <code>y</code> or <code>Y</code> and press <code>Enter</code
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
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<a href="http://www.startssl.com/?app=1">free SSL cert offerred by StartSSL.com</a>.
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We have a document for you to <a href="http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html">use a bought SSL certificate</a>.</li>
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<li>If you're running a busy mail server, we have <a href="./performance.tuning.html">some suggestions for better
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performance</a>.</li>
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</ul>
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<h2 id="access-webmail-and-other-web-applications">Access webmail and other web applications</h2>
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<p>After installation successfully completed, you can access web-based programs
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@ -269,6 +269,8 @@ automatically. Type <code>y</code> or <code>Y</code> and press <code>Enter</code
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
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<a href="http://www.startssl.com/?app=1">free SSL cert offerred by StartSSL.com</a>.
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We have a document for you to <a href="http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html">use a bought SSL certificate</a>.</li>
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<li>If you're running a busy mail server, we have <a href="./performance.tuning.html">some suggestions for better
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performance</a>.</li>
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</ul>
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<h2 id="access-webmail-and-other-web-applications">Access webmail and other web applications</h2>
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<p>After installation successfully completed, you can access web-based programs
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@ -240,6 +240,8 @@ automatically. Type <code>y</code> or <code>Y</code> and press <code>Enter</code
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<a href="http://www.startssl.com/?app=1">free SSL cert offerred by StartSSL.com</a>.
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We have a document for you to <a href="http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html">use a bought SSL certificate</a>.</p>
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</li>
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<li>If you're running a busy mail server, we have <a href="./performance.tuning.html">some suggestions for better
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performance</a>.</li>
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</ul>
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<h2 id="access-webmail-and-other-web-applications">Access webmail and other web applications</h2>
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<p>After installation successfully completed, you can access web-based programs
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|
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@ -223,6 +223,8 @@ automatically. Type <code>y</code> or <code>Y</code> and press <code>Enter</code
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
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<a href="http://www.startssl.com/?app=1">free SSL cert offerred by StartSSL.com</a>.
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We have a document for you to <a href="http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html">use a bought SSL certificate</a>.</li>
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<li>If you're running a busy mail server, we have <a href="./performance.tuning.html">some suggestions for better
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performance</a>.</li>
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</ul>
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<h2 id="access-webmail-and-other-web-applications">Access webmail and other web applications</h2>
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<p>After installation successfully completed, you can access web-based programs
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@ -0,0 +1,48 @@
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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>Performance tuning</title>
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<link href="./css/markdown.css" rel="stylesheet"></head>
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</head>
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<body>
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<div id="navigation">
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<a href="http://www.iredmail.org" target="_blank">iRedMail web site</a>
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// <a href="./index.html">Document Index</a>
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</div><h1 id="performance-tuning">Performance tuning</h1>
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<div class="toc">
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<ul>
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<li><a href="#performance-tuning">Performance tuning</a><ul>
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<li><a href="#setup-a-dns-server-in-lan-or-localhost-to-cache-dns-queries">Setup a DNS server in LAN or localhost to cache DNS queries</a></li>
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<li><a href="#enable-postscreen-service-to-help-reduce-spam">Enable postscreen service to help reduce spam</a></li>
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<li><a href="#update-amavisd-postfix-config-files-to-process-more-emails-concurrently">Update Amavisd + Postfix config files to process more emails concurrently</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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<p>If you're running a busy mail server (many inbound/outbound emails every day),
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you can follow below suggestions for better performance.</p>
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<h3 id="setup-a-dns-server-in-lan-or-localhost-to-cache-dns-queries">Setup a DNS server in LAN or localhost to cache DNS queries</h3>
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<p>Mail services heavily rely on DNS service and perform many many DNS queries,
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a cache DNS server in LAN or localhost helps a lot.</p>
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<h3 id="enable-postscreen-service-to-help-reduce-spam">Enable postscreen service to help reduce spam</h3>
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<ul>
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<li><a href="./enable.postscreen.html">Enable postscreen service</a></li>
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</ul>
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<p>If you don't want to use postscreen service, you can <a href="./enable.dnsbl.html">enable DNSBL service</a>
|
||||
instead, it helps a lot too, but less effective than postscreen service.</p>
|
||||
<p>postscreen and DNSBL service help catch a lot spam, save much system resource.</p>
|
||||
<h3 id="update-amavisd-postfix-config-files-to-process-more-emails-concurrently">Update Amavisd + Postfix config files to process more emails concurrently</h3>
|
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<ul>
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<li><a href="./concurrent.processing.html">Process more emails concurrently</a></li>
|
||||
</ul><p style="text-align: center; color: grey;">Document published under a <a href="http://creativecommons.org/licenses/by-nd/3.0/us/" target="_blank">CC BY-ND 3.0</a> license. If you found something wrong, please do <a href="http://www.iredmail.org/contact.html">contact us</a> to fix it.<script>
|
||||
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
||||
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
|
||||
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
|
||||
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
|
||||
|
||||
ga('create', 'UA-3293801-21', 'auto');
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||||
ga('send', 'pageview');
|
||||
</script>
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||||
</body></html>
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||||
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@ -192,7 +192,8 @@ Configuration completed.
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
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[free SSL cert offerred by StartSSL.com](http://www.startssl.com/?app=1).
|
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We have a document for you to [use a bought SSL certificate](http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html).
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||||
|
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* If you're running a busy mail server, we have [some suggestions for better
|
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performance](./performance.tuning.html).
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## Access webmail and other web applications
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|
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@ -197,7 +197,8 @@ Configuration completed.
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
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[free SSL cert offerred by StartSSL.com](http://www.startssl.com/?app=1).
|
||||
We have a document for you to [use a bought SSL certificate](http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html).
|
||||
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* If you're running a busy mail server, we have [some suggestions for better
|
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performance](./performance.tuning.html).
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## Access webmail and other web applications
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|
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@ -255,7 +255,8 @@ Configuration completed.
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
|
||||
[free SSL cert offerred by StartSSL.com](http://www.startssl.com/?app=1).
|
||||
We have a document for you to [use a bought SSL certificate](http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html).
|
||||
|
||||
* If you're running a busy mail server, we have [some suggestions for better
|
||||
performance](./performance.tuning.html).
|
||||
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## Access webmail and other web applications
|
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|
|
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@ -224,6 +224,8 @@ Configuration completed.
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
|
||||
[free SSL cert offerred by StartSSL.com](http://www.startssl.com/?app=1).
|
||||
We have a document for you to [use a bought SSL certificate](http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html).
|
||||
* If you're running a busy mail server, we have [some suggestions for better
|
||||
performance](./performance.tuning.html).
|
||||
|
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## Access webmail and other web applications
|
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|
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@ -210,7 +210,8 @@ Configuration completed.
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HTTPS/IMAPS/POP3/SMTPS. Or, you can use
|
||||
[free SSL cert offerred by StartSSL.com](http://www.startssl.com/?app=1).
|
||||
We have a document for you to [use a bought SSL certificate](http://www.iredmail.org/docs/use.a.bought.ssl.certificate.html).
|
||||
|
||||
* If you're running a busy mail server, we have [some suggestions for better
|
||||
performance](./performance.tuning.html).
|
||||
|
||||
## Access webmail and other web applications
|
||||
|
||||
|
|
|
|||
|
|
@ -5,6 +5,13 @@
|
|||
* [FreeBSD (without Jail)](./install.iredmail.on.freebsd.html), [FreeBSD with Jail (ezjail)](./install.iredmail.on.freebsd.with.jail.html)
|
||||
* [OpenBSD](./install.iredmail.on.openbsd.html)
|
||||
|
||||
* [Setup DNS records for your iRedMail server](./setup.dns.html)
|
||||
* [Install iRedMail with a remote MySQL server](./install.iredmail.with.remote.mysql.server.html)
|
||||
* [Perform silent/unattended iRedMail installation](./unattended.iredmail.installation.html)
|
||||
* After installtion:
|
||||
|
||||
* [Setup DNS records for your iRedMail server](./setup.dns.html)
|
||||
|
||||
* Additional installation tips
|
||||
|
||||
* [Install iRedMail with a remote MySQL server](./install.iredmail.with.remote.mysql.server.html)
|
||||
* [Perform silent/unattended iRedMail installation](./unattended.iredmail.installation.html)
|
||||
|
||||
* [Performance tuning for a busy server](./performance.tuning.html)
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
Performance tunning
|
||||
Loading…
Reference in New Issue