Access denied on image styles files on Drupal 7.34 As you can see in the screenshot below, images that are processed through image styles aren't showing up and when trying to display them through their urls, we get a 403 access denied.

It's a fresh drupal install on a Debian 7 with no additional modules

Any ideas are welcome to overcome this problem

Thanks
It's common to have incorrect permissions on that folder. You'll need to fix the permissions for /site/default/files directory. For a complete answer, see the recommended directory permissions or just run the following from the website root (per @David's comment below).

find sites/default/files -type d -exec chmod 755 {} +
find sites/default/files -type f -exec chmod 644 {} +
chown -R www-data:www-data sites/default/files


For additional issues, check Status Reports on yourWebsiteName.com/admin/reports/status.

Update:

I think I found the issue.

There was a similar question asked on Drupal.

It seems that the issue is that certain hosts, such as BlueHost, HostMonster and Virtualmin forbid +FollowSymLinks. You will need to change +FollowSymLinks into +SymLinksIfOwnerMatch in your .htaccess file. See an entire discussion on Drupal.