// <ahref="./index.html">Document Index</a></div><h1id="upgrade-ubuntu-from-1804-to-2004">Upgrade Ubuntu from 18.04 to 20.04</h1>
<li><ahref="#upgrade-iredmail-to-the-latest-stable-release-first">Upgrade iRedMail to the latest stable release first</a></li>
<li><ahref="#upgrade-os">Upgrade OS</a></li>
<li><ahref="#re-upgrade-iredapd-iredadmin-pro-mlmmjadmin-to-the-latest-release">Re-upgrade iRedAPD, iRedAdmin(-Pro), mlmmjadmin to the latest release</a></li>
; IP addresses must be separated by comma, and no space between comma and ip.
listen.allowed_clients = 127.0.0.1
pm = dynamic
pm.max_children = 200
pm.start_servers = 10
pm.min_spare_servers = 5
pm.max_spare_servers = 10
pm.max_requests = 500
pm.status_path = /php-fpm-status
ping.path = /php-fpm-ping
request_terminate_timeout = 60s
access.log = /var/log/php-fpm/access.log
slowlog = /var/log/php-fpm/slow.log
request_slowlog_timeout = 10s
</code></pre><divclass="footer">
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