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Debian-specific CiderWebmail usage notes
========================================
Supports integration with any PSGI frontend
-------------------------------------------
CiderWebmail uses PSGI, and can therefore be served either standalone
using e.g. twiggy or starman, or by a general purpose server like Apache
or nginx using with a binding like mod_perl, FCGI or uWSGI.
Simplest use is the following, invoked as the user www-data:
plackup /etc/ciderwebmail/ciderwebmail.psgi
Included are snippets for production use integrating with Apache2 via
uWSGI, enabled like this as root:
apt install apache2 libapache2-mod-uwsgi uwsgi uwsgi-plugin-psgi
ln -s -t /etc/uwsgi/apps-enabled ../apps-available/ciderwebmail.ini
a2enmod uwsgi
a2enconf ciderwebmail
service uwsgi restart ciderwebmail
service apache2 restart
## Limit memory consumption
uWSGI optionally supports merging identical memory pages
for systems with more CPU cycles than memory to spare.
Uncomment ksm line in /etc/uwsgi/apps-available/ciderwebmail.ini
and enable ksm in the kernel:
apt install sysfsutils
echo "kernel/mm/ksm/run = 1" >> /etc/sysfs.d/local-ksm.conf
-- Jonas Smedegaard <dr@jones.dk> Tue, 11 Feb 2020 11:16:41 +0100
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