
PCI DSS Requirement 1.1.4: Establishing a Firewall and DMZ
What is PCI Requirement 1.1.4? PCI DSS Requirement 1.1.4 requires “a firewall at each internet connection and between any demilitarized zone (DMZ) and the internal network zone.” PCI DSS v3.2, the current version of the standard, says that the purpose behind PCI Requirement 1.1.4 is, “Using a firewall on every internet connection coming in to (and out of) the network, and between any DMZ and the internal network, allows the…




