I've setup an Unbuntu LAMP stack, and installed into /var/www/ a Wordpress install under the 'root' user. The install works fine until I need the application itself to copy files, install plugins etc...then throws a permission error. My limited understanding is that I should perhaps set the group owner to Apache? I honestly don't know and hoping for some wisdom here, i welcome any primers that can help me understand users / groups and all that Linux goodness. Thanks!