I'm on a freshly installed fedora 21. I am using mediawiki 1.24.1 and created the LocalSettings.php file through the installation page. I have also chown -R apache:apache the mediawiki folder.
However, when I try to open the actual wiki the page says 'LocalSettings.php not readable' even if I set the permission of LocalSettings.php to 777
I was having the same issue and resolved this by running the following command:
sudo restorecon -r /var/www/wiki/
It seems like SELinux was blocking us for some reason. restorecon is very safe and basically resets the security context of the files.
Make sure you set the permissions back to a safer value:
sudo chmod 644 /var/www/wiki/LocalSettings.php
