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A lock ( Dot gov ) or https:// don't prove our archive is authentic, only that you securely accessed it. Note that we are working to fix that :)

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Definition(s):

To block all inbound and outbound traffic that has not been expressly permitted by firewall policy.
Source(s):
NIST SP 800-41 Rev. 1

Glossary Comments

Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.

Comments about the glossary's presentation and functionality should be sent to secglossary@nist.gov.

See NISTIR 7298 Rev. 3 for additional details.

Information Technology Laboratory

Computer Security Resource Center

Computer Security Resource Center

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Glossary Comments