Smoothwall is fine and dandy, except NAT is making it more trouble than it is worth.I think my Red Hat install is kernal 2.4.IP chains or IP tables.What is the best way get a bare-bones firewall ...

This paper studies one particular aspect of providing communication security: firewall technology. This article provides a security framework in the form of packet filtering model within the firewall ...

This paper presents a mechanism to improve firewall packet filtering time through optimizing the order of security policy filtering fields for early packet rejection. The proposed mechanism is based ...