Cisco Security Specialist's Guide to PIX Firewall immerses the reader in the highly complicated subject of firewall implementation, deployment, configuration, and administration. This guide will instruct the reader on the necessary information to pass the CSPFA exam including protocols, hardware, software, troubleshooting and more. Cisco Security Specialist's Guide to PIX Firewall introduces the basic concepts of attack, explains the networking principals necessary to effectively implement and deploy a PIX firewall, covers the hardware and software components of the device, provides multiple configurations and administration examples, and fully describes the unique line syntax native to PIX firewall configuration and administration.
I wrote several books on information security, its offensive and defensive sides, for Syngress/Elsevier.
That was ages ago, though. Currently busying myself with learning Mandarin to argue on Chinese Internet forums, because I proved everyone on the English speaking Internet wrong. Clearly.