Which is the best open-source Linux-based firewall for a small organization?

Firewalls serve as a crucial line of defense against cyber threats by monitoring and controlling incoming and outgoing network traffic. Firewalls analyze network traffic based on pre-defined security rules to block unauthorized access, providing a barrier between trusted internal networks and untrusted external networks. They are essential for organizations seeking to protect their digital assets. What are some critical features of Firewalls? Intrusion Detection: Monitors...