Firewalls are a staple component of a secure network in today's Internet. This
book provides network administrators who are more focused on the core network
services and end users an opportunity to learn about modern firewall
capabilities. This book is not an exhaustive reference on all possible firewalls
nor is it a complete text on the firewalls that are mentioned in this book.
Instead, this book provides a solid foundation of fundamental knowledge upon
which readers can build their knowledge and skills in firewall administration
and implementation (and security in general).
