| DShield | | Distributed Intrusion Detection System collects firewall log excerpts from volunteers. The logs are aggregated and analyzed. Several reports are generated showing trends in attack sources and methods used. |
| FirewallSupport.com | | Online support service specifically focused on firewall security. Information and resources to troubleshoot firewall problems. |
| The Freefire Project | | Dedicated to Users, Admins and especially Developers of IT-Security Solutions (especially Firewalls) based on Free Software. It features a large Tool overview, some articles on IT-Security and Web Links to other resources. | |
| | | |