Wednesday, May 1, 2019

Configure Azure Firewall ports required to join Domain Controller

Problem

There are two virtual networks, Network 1 (contains Domain Controller, Windows Server 2016) and Network 2 (contains workload VMs, Windows Server 2016). Traffic between them goes through Azure Firewall and User Defined Routes.

Solution

After some experiments came up with following categories of rules:

Name Proto Src Dest Ports
tcp-to-dc tcp * <dc server> 53,88,135,139,389,445,464,3268,3269,49152-64000
udp-to-dc udp * <dc server> 53,88,123,135,137,138,464,389,49152-64000


References
https://support.microsoft.com/en-us/help/179442/how-to-configure-a-firewall-for-domains-and-trusts
http://powershell365.com/2016/01/19/firewall-ports-required-to-join-ad-domain/

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