Perimeter Glossary

Browse 6 perimeter terms defined in plain English, from the cultural dictionary of computing.

6 Perimeter Terms

Demilitarized Zone
A network segment placed between untrusted external networks and trusted internal systems to host public-facing services under tighter isolation. The idea is...
DMZ
Short for demilitarized zone, a network segment used to isolate public-facing systems from more trusted internal networks. A DMZ reduces blast radius when...
Edge Security
The protection of systems and traffic at the network or application edge, where requests first meet services such as CDNs, reverse proxies, gateways, and edge...
Internet Exposure
The condition of a system, service, asset, or interface being reachable from the public internet. Internet exposure is not automatically a flaw, but exposed...
NAT Security
The security implications and controls associated with network address translation, including how internal addresses are hidden, how sessions are tracked, and...
Network Perimeter Security
The controls placed at network boundaries to monitor, filter, or restrict traffic entering and leaving an environment, such as firewalls, gateways, DDoS...

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