During my work with personal computers and servers I experienced a lot of problems. So, whenever I have a problem I try to add the solution here. Due to the mass of problems, I am sure the list is going to grow fast 😏.
Thanks to all the other guys in the www helping also with solutions to the different kind of problems.
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As soon as the basic installation of Joomla has been completed, the setup can be carried out. I had the following problem: the installer always stopped halfway without warning. The problem was caused by the Apache mod-evasive module. For one thing, there were many 403 errors in the operation of Joomla and new installations could not be set up. For this reason, I first switched off this module:
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Log in via SSH and cd to the main directory of your website, e.g .:
sudo -s
cd /var/www/<Your Directory>/webDownload Joomla:
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It is not very annoying for a visitor of your site, but a lot of crawlers are loorking for the meta key:
<meta name="generator" content="Joomla! - Open Source Content Management" />Unfortunately some bad guys looking for Joomla websites to take advantage of any possible security vulnerabilities.
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Lateley when I tried to delete a customer in the ISPconfig panel, I received an error:
CSRF attempt blocked.After searching a long time in the internet without success I found the solution: If you try to delete a customer within ISPconfig this dialog opens up:
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While upgrading my server, most probably while doing the upgrade to Ubuntu 20.04 Focal, mod-evasive got installed and enabled. It didn't effect the configured websites, except sometimes for a couple of seconds I received 403 errors. But finally everything continued working. The problem started, after adding a new website and trying to install a new Joomla platform. The installation process of Joomla stopped on the very last step without any error message on the screen.
Read more: Apache2, mod-evasive and Joomla Installation Problems