Many thanks for your efforts makovick. I recently changed to nfblockd and love using it. It is an easy, uncomplicated install and is currently using a mere 8960K memory on my system doing the same job as moblock previously did.
A couple of things I customized were: changing the cron job to make the blocklist update weekly instead of daily. I also added iptables-save / restore / flush commands to the rc script. Not essential, but they work for me.
Users need a basic knowledge of iptables to build their chains but I'd recommend your software to anyone requiring a secure and very lightweight ip blocker.
It's exactly what I need. Great work. =D>