firewall

What is firewall?

firewall meaning in Internet terms is Definition: A capability to limit network traffic between networks and/or information systems.
Extended Definition: A hardware/software device or a software program that limits network traffic according to a set of rules of what access is and is not allowed or authorized.
Adapted from: CNSSI 4009

 

reference: Glossary | National Initiative for Cybersecurity Careers and Studies

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