Palo Alto Networks Next-Generation Firewalls (NGFWs) implement a security architecture that extends beyond traditional firewall capabilities. Traditional firewalls primarily filter traffic based on port, protocol, and IP addresses, while Palo Alto Networks 's NGFWs use App-ID technology to identify and control applications regardless of port, protocol, or encryption status. This application-based approach enables for more precise security controls than port-based methods, enabling administrators to create policy rules based on applications and user identities rather than just network attributes.

The core functions include: App-ID technology, which identifies and controls applications regardless of port, protocol, or encryption, moving beyond traditional firewall limitations. This application awareness is seamlessly integrated into unified security policies that combine all protection mechanisms into a single, streamlined rule base for simplified management. To address the growing challenge of encrypted traffic, SSL/TLS decryption capabilities provide visibility into threats hiding within encrypted communications. Advanced threat intelligence and sandboxing through WildFire continuously protect against unknown malware and zero-day attacks in real-time, while URL filtering blocks access to malicious websites and enforces acceptable use policies. Finally, integrated VPN connectivity ensures secure remote access for today's distributed workforce. Together, these core features create a unified security platform that provides unprecedented visibility, control, and protection across all network traffic.

Administrators have several options for managing Palo Alto Networks NGFWs, depending on your network's deployment scale and technical requirements: