IOSec Addons are enhancements for web security and crawler detection
IOSEC PHP HTTP FLOOD PROTECTION ADDONS
IOSEC is a php component that allows you to simply block unwanted access to your webpage. if a bad crawler uses to much of your servers resources iosec can block that.
IOSec Enhanced...
The DMOZ white/blacklist generator is a Perl script to convert the RDF download file from the DMOZ website into one or more whitelists compatible with the SquidGuard and Dan's Guardian web content filters.