I noticed the strangeness after upgrading from 3.0.5.4p9 to 3.1 probably it was an error? Previously, it was in apache2_plugin.inc.php, line 2688: PHP: $tpl->setVar('fpm_group', $data['new']['system_group']); Now there was a (line 3172): PHP: $tpl->setVar('fpm_group', $web_config['group']); In my case it led to that php-fpm working with not true rights. And the second question, how to set up nginx as reverse proxy, I bought the documentation, but it's not generally described.
The permissions are ok as ispconfig 3.1 creates them, so the code you posted is intended to be like this. The correct group is "www-data", s as long as you see that group and not the client group, then your system is working correctly. But we will adjust them again for 3.1.1. There is no official reverse proxy setup for ispconfig and nginx, that's why this topic is not covered in the manual.
Those. you want to say that version 3.1 is not possible to use on load.. Ok, we wait. Ok, wait. fix that yourself Where can I read about the use nginx_reverseproxy_plugin.inc.php how to configure and use?