Firewall: Difference between revisions
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Latest revision as of 00:24, 20 January 2026
Firewall
An inter-network connection device that restricts data communication traffic between two connected networks. A firewall may be either an application installed on a general-purpose computer or a dedicated platform (appliance), which forwards or rejects/drops packets on a network. Typically firewalls are used to define zone borders. Firewalls generally have rules restricting which ports are open.
Source: NIST SP 800-82 Rev. 2 | Category: