I developped a website locally on my computer, than uploaded it to a 'Business Webspace Linux' Hosting of Telekom Austria, in the Document root of the vhost as I wanted short and seo-friendly paths.
I was suprised when I tried to login on the login page with path http://mydrupalsite.com/user ... because this path redirects to the user administration login of the Provider ... as does http://mydrupalsite.com/admin to their own administration panel. The drupal site was running (after I changed the memory limit settings of php.ini) - but login and administration was simply not possible.
The good news first: I copied drupal into a directory, truncated all cache tables and everything was running smooth. Drupal simply rocks :)
I called the support of Telekom Austria to give them the feedback, that their hosting settings are not really 'drupal friendly'. The callcenter guy told me, that these settings are common at the big providers. Well - I run several drupal sites on different hosts from different providers - but that was completely new to me.
My questions to you: Have you experienced this issue with another hosting provider? Is this common? The guy tried to explain me that this is a security issue. I must admit, I didn't understand his explanation ... why could this be a security problem on the settings of the webserver?