Richard, I use Smartfilter (www.securecomputing.com) and I have been very satisfied with their product. It can run on a variety of proxy servers (Microsoft Proxy Server, Netscape, Squid) and a variety of OSes. Regards, Jeffery Gieser - [To unsubscribe, send mail to majordomo@lists.gnac.net with "unsubscribe firewalls" in the body of the message.]