How do firewalls act as gatekeepers by filtering harmful network traffic?
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How do firewalls act as gatekeepers by filtering harmful network traffic?
Firewalls act as gatekeepers by examining all incoming and outgoing network traffic based on a set of predetermined security rules. They can filter out harmful traffic by monitoring data packets and comparing them against the defined rules. This allows firewalls to block potentially dangerous traffic while permitting safe data transmissions to pass through. Firewalls can also perform functions like packet filtering, proxy service, and stateful inspection to provide comprehensive protection.