[Hans]

Explanation:

sudo chown -R www-data:www-data rra
sudo chown -R www-data:www-data logs

With these command you give Apache write permissions to the selected directories.
It is more save then chmod 777 for instance.

Note:

www-data:www-data is for Debian Linux.

Replace www-data:www-data with apache:apache for RedHat like systems.
(RHEL, CentOS & Fedora).

Replace www-data:www-data with www:www for Suse Linux.