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Glossary Cybersecurity / Term

Firewall

A network device that filters incoming and outgoing network data based on a series of rules.


A form of web security that stands between a private network and the Internet to prevent unwanted traffic from passing either way. Some firewalls have proxy functions built in. Often the distinction between a firewall and a proxy is blurry. True firewalls generally support packet-filtering, proprietary application filtering, and some proxy functions.

Permanent link Firewall - Modification date 2024-04-14 - Creation date 2020-05-18


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