I followed your howto at this link http://www.howtoforge.com/perfect-se...ot-ispconfig-3
after loading wordpress I have faced a problem uploading some type of files through wordpress media section, e.g I was able to upload .png but jpeg, .doc but not pdf. I don't think its wordpress security restriction, I have de-activiated all the plugins and loaded a special plugin http://wordpress.org/support/plugin/...-media-library
to allow different types of MIME files with no luck.
It's worth to mention that I was using godaddy hosting server and I never faced such restriction. However, still not sure what is the problem.
After some googling I have read the following link http://www.otreva.com/wordpress-http...g-pdf-uploads/
and I believe it is a server restriction since I'm receiving the same exact error when i upload. Can you please provide me with a similar fix but compatible with Ubuntu and ISPConfig, this link talks about CentOS.
Thank Falko and Howtoforge team for all your help and support,