Firewalls remain a foundational control in modern enterprise security architectures. While the industry has evolved from traditional perimeter firewalls to Next-Generation Firewalls (NGFWs), the core objectives remain the same:
Enforce least-privilege network access
Control application traffic
Provide visibility and threat prevention
Enable secure business operations
This section provides vendor-neutral guidance, vendor-specific deep dives, and real-world operational best practices based on enterprise deployments.
Firewall Vendors Covered
Palo Alto Networks – Application-aware NGFW and Zero Trust enforcement
Check Point – Policy-driven security with blade architecture
Fortinet – High-performance firewalls and integrated security fabric
Topics Included
Firewall platform comparisons
Vendor-specific architecture and operations
CLI commands and troubleshooting
Policy design and optimization
NAT and traffic flow strategies
High availability and resiliency design
Use the navigation to explore each area in detail.