The Next-Generation Firewall (NGFW), of which Palo Alto Networks PAN-OS is a notable example, is one of the most effective types of firewalls. What factors make this kind of firewall the finest?
1) Content inspection, user identification, and application awareness
2) Threat protection functions including antivirus and intrusion prevention systems (IPS)
3) Support for SSL decryption
4) User-based policies for customized access controls
5) Sharing threat intelligence for proactive defense against new attacks