@Hvojntj Hello! I'm curious when you opened /etc/rc.local in your editor with root permission and add the command. Did you add before the line exit 0 in that file?
Is this a Bitnami installer or was DreamFactory installed from source? I'm wondering if you might not have to add the scripts that start the individual services MySQL, Apache/Nginx etc.. to the /etc/rc.local file as well.
Do these services run at startup? Can you check the running processes?