Content Security provides additional control over what can be accessed through your firewalls. The HTTP, FTP, SMTP, and TCP Security Servers provide the means to filter content in FireWall-1. Resources are what tell the Security Servers how to filter content.
CVP, a feature present in all of the Security Servers, provides a mechanism for third-party products to scan content for viruses and Trojan horses. UFP, present only in the HTTP Security Server, provides a way for third-party applications to filter users'attempts to access various Web sites.