FreeBSD router (IPFW-based): how to block an URL (all IPs of an A-like HOSTNAME)

[Valerian Galeru]

Hello,

Does anyone have any ideas how to block all requests using an IPFW-based router (FreeBSD 6.4) to and from a HOSTNAME (which has more DNS A entries) or better, from any *.HOSTNAME.COM ????

Thank you in advance