ISPConfig 3.2 is not yet compatible with PHP 8.x. It may happen then when installing PHP8 on hosts running ISPConfig you’ll get a blank page when opening the management site
The ISPConfig admin website doesn’t use PHP-FPM but PHP-FCGI. It’s configured in /etc/apache2/sites-available/ispconfig.vhost in this line:
FCGIWrapper /var/www/php-fcgi-scripts/ispconfig/.php-fcgi-starter .phpThe script above calls
exec /usr/bin/php-cgiwhich is handled by alternatives, in Debian/Ubuntu. So in order to restore ISPConfig backend just run:
update-alternatives --configure php-cgiand choose the latest available PHP 7.x version, hopefully 7.4.
THANK YOU!
I spent a lot of time trying to work out why ISPconfig broke since last time I used it several months ago. I realised it was probably due to a system update but had not worked out how to fix it. This solved my problem.
Two points:
– For me, the code lines above are white text on pale grey background. I cannot read them & had to copy & paste to a text editor. A darker background would be better.
– On my Ubuntu server the option is –config rather than –configure