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Password Policy Firewall Ports

Here are the internal ports for Password Policy:

SourceDestinationProtocolPort
All DCsArbiter(s)TCP4383
Password Policy Administration ToolArbiter(s)TCP4383
Password Policy Administration ToolPDC EmulatorTCP4385

and ports for Breached Password Protection:

https://specopssoft.com/support/password-policy/reference-material/configure-allowlist

Publication date: September 1, 2026
Modification date: September 1, 2026

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