3-legged DMZ: A network design strategy that uses three security zones – the Internet (untrusted), an intermediary area known as the Demilitarized Zone (DMZ), and the internal network (trusted). The DMZ hosts public-facing services, acting as a buffer between the Internet and the internal network. This model adds an extra layer of protection by ensuring direct traffic between the Internet and the trusted network is minimized and strictly controlled. This setup does not always involve a single intermediary DMZ; there can be multiple DMZs depending on the complexity of the network design.
Categories: CC D4: Network Security | CCSP D3: Cloud Platform and Infrastructure Security | CISM D3: Information Security Program | CISSP D4: Communication and Network Security | Security+ D3: Security Architecture | SSCP D6: Network and Communication Security
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