Evolution of Firewall Technology
Next-Generation Firewalls (NGFW) represent the evolution of traditional firewall technology, combining conventional firewall capabilities with advanced security features. NGFWs provide deep packet inspection, intrusion prevention, and application awareness to combat modern cyber threats.

Core NGFW Features
NGFWs integrate application awareness and control, integrated intrusion prevention systems (IPS), SSL/TLS inspection, advanced malware protection, cloud-delivered threat intelligence, and identity-based security policies. These features enable organizations to detect and block sophisticated attacks.
Application Control
Unlike traditional firewalls that operate at the port level, NGFWs identify and control applications regardless of port, protocol, or evasive tactics. This granular control allows administrators to create policies based on application categories, risk levels, and business relevance.
Threat Intelligence Integration
Modern NGFWs leverage cloud-based threat intelligence to identify and block zero-day threats, malware, and advanced persistent threats. Real-time updates ensure protection against the latest attack vectors and malicious domains.
Performance Considerations
When deploying NGFWs, organizations must consider throughput requirements, latency impacts, SSL inspection overhead, and scalability needs. Proper sizing and architecture ensure security doesn't compromise network performance.
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