Reviews of O'Reilly's Beautiful Code: Leading Programmers Explain How They Think, Prentice Hall's The Official Damn Small Linux Book, and Linux Firewalls: Attack Detection and Response with iptables, psad, and fwsnort from No Starch Press.

Spanish security researchers have discovered several vulnerabilities in the "Firewall-1" security solution by software vendor Checkpoint, and are now questioning its Common Criteria EAL4+ certification.

Development of the new version of the Gibraltar security software took more than a year. The release of Gibraltar 2.5 sees enhanced functionality and simplified use.

Novell is extending its portfolio of enterprise management solutions with its acquisition of Senforce Technologies, an endpoint security management specialist.

Linux has a fantastic selection of firewalls for securing stand-alone computers or whole networks. Although you can use IPTables to set up a firewall, the configuration is often the most difficult step. KMyFirewall offers a powerful, user-friendly, GUI-based approach.

We’ll show you how to build your own Netfilter extension with this example of a musical firewall.

The Apache ModSecurity module provides extra protection for your web server. We'll show you why this optional application firewall is quickly becoming a favorite of webmasters and security experts.

The Simple Security Policy Editor (SSPE) helps you organize your network and keep track of security policies across multiple firewalls. You can reference a central policy to generate rulesets for packet filters and VPN gateways.