Firewalls and Next-Generation Firewalls

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks, such as the internet. Next-Generation Firewalls (NGFWs) extend traditional firewall capabilities by adding advanced features like intrusion prevention, application control, and advanced threat detection, offering deeper inspection and more granular control over network traffic.