Who Should Read This Book

This is an intermediate- to advanced-level book for security professionals and system and network administrators who have a good understanding of TCP/IP and related technologies. This book is a valuable reference for individuals who are interested in examining best practices of perimeter defense and in expanding their knowledge of network security tools and techniques. Because the book was developed in close coordination with the SANS Institute, it is also an excellent supplementary resource for those pursuing the GIAC Certified Firewall Analyst (GCFW) certification.