Construct · 1 fields · 1 citations

firewall: a standalone construct

One name. One construct. A landmark on the map.

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Computer networking

A traffic filter between networks

A system placed between a trusted internal network and an untrusted outside one that inspects traffic and permits or blocks it according to a stated security policy. Bellovin and Cheswick's 1994 Network firewalls set out the design: a gateway that filters packets and relays connections so that only sanctioned traffic passes between the two sides. The name was borrowed from the fire-resistant wall of a building, but here the referent is software or a device that enforces rules on network packets, measured by the traffic it allows and denies, not a masonry barrier or a banking rule.[1]

Unit: One policy-enforcing gateway between networks, described by its rule set
Recovery means: Not applicable
Measured by: Evaluated by its filtering rules, the packets and connections it permits or drops, and its resistance to bypass

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Nearby constructs

barrier4 fields · 7 citationsjingle · one word, four constructs filter3 fields · 3 citationsjingle · one word, three constructs partition3 fields · 3 citationsjingle · one word, three constructs

References

Bellovin, S. M., & Cheswick, W. R. (1994). Network firewalls. IEEE Communications Magazine, 32(9), 50-57. https://doi.org/10.1109/35.312843

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