History: Special configurations with Virtualmin

How to install WikiSuite documents a typical installation. But your needs can differ.

As of 2022-10-09, this page is still a draft.

The goal is to document (or even better point to documentation) about

• Change server-wide settings via CLI (Webmin)
• Change server-wide settings via GUI (Webmin)
• Overriding settings for one site via CLI (Virtualmin)
• Overriding settings for one site via GUI (Virtualmin)
• Overriding settings for one site via text file (like .user.ini) which work well for cloneandupgrade

Max file upload

Done via Virtualmin GUI

PHP memory limit

Done via Virtualmin GUI

Display error messages

To do: document way to override for whole server. Ex.: a dev server could have always at on, or per site.

Virtualmin -> (pick the Virtual Server or Sub Server) -> Services -> PHP-FPM Configuration -> Error Logging

• Display error messages: Yes
• Error types to display: All errors and warnings

Change PHP version

Virtualmin -> (pick the Virtual Server or Sub Server) -> Server Configuration -> PHP Version

You should not change the "PHP script execution mode" unless you know what you are doing.

OPcache

tiki-admin.php?page=performance -> Bytecode Cache can report a setting to be adjusted:
opcache.memory_consumption

One way (perhaps not the cleanest) is to find the php.ini file for opcache for your php. Ex.: /etc/php/7.4/fpm/conf.d/10-opcache.ini and

opcache.memory_consumption=128

and restart your Apache server (or reboot the whole server). Then, check tiki-admin.php?page=performance after a while.

zlib.output_compression

On ClearOS, it was recommended to put zlib.output_compression = 1 in .user.ini What about Virtualmin?

We will propose a change of default setting as per: https://dev.tiki.org/Review-Performance-for-2023