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Network Port Requirements for Windows Systems

Friday, October 28, 2011

In network designs where your Windows servers are behind secured zones protected by a perimeter firewall, it will be necessary to open ports to allow the required traffic to pass between the client and server.  Other scenarios may include firewalls between domain controllers which may impact trust relationships between domains, or replication traffic between domain controllers in the same domain.  The links below provide detailed information regarding this topic.

Service Overview and Network Port Requirements for the Windows Server System
http://support.microsoft.com/kb/832017/en-us

Active Directory and Active Directory Domain Services Port Requirements
http://technet.microsoft.com/en-us/library/dd772723(WS.10).aspx

How to Configure a Firewall for Domains and Trusts
http://support.microsoft.com/kb/179442

How to configure RPC Dynamic Port Allocation to Work with Firewalls
http://support.microsoft.com/?kbid=154596

Active Directory Replication Over Firewalls
http://technet.microsoft.com/en-us/library/bb727063.aspx

Restricting Active Directory Replication Traffic and Client RPC Traffic to a Specific Port
http://support.microsoft.com/kb/224196

Configuring an Intranet Firewall
http://technet.microsoft.com/en-us/library/bb125069(EXCHG.65).aspx

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