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.

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.