service and network ports for Windows system

Service overview and network port requirements for the Windows Server system

This article discusses the essential network ports, protocols and services that are used by Microsoft client and server operating systems, server-based programs and their subcomponents in the Microsoft Windows server system. Administrators and support professionals may use this Microsoft Knowledge Base article as a road-map to determine what ports and protocols Microsoft operating systems and programs require for network connectivity in a segmented network. The port information in this article should not be used to configure Windows Firewall. For information about configuring Windows Firewall, see the Windows Firewall Settings Technical Reference.
	Overview
	System services ports
	Ports and protocols
Active Directory port and protocol requirements

REFERENCES

How to configure a firewall for domains and trusts - 179442 (http://support.microsoft.com/kb/179442/)

Information about TCP/IP port assignments - 174904 (http://support.microsoft.com/kb/174904/)

For more information about how to restrict Active Directory replication traffic, see the "Restricting Active Directory replication traffic to a specific port" -

224196 (http://support.microsoft.com/kb/224196/)

Port Reference for MS TCP/IP" in the Microsoft Windows NT 4.0 Resource Kit -

http://www.microsoft.com/resources/documentation/windowsnt/4/server/reskit/en-us/net/port_nts.mspx

TCP and UDP Port Assignments -

http://www.microsoft.com/windows2000/techinfo/reskit/en-us/default.asp?url=/windows2000/techinfo/reskit/en-us/cnet/cnfc_por_GDQC.asp

Port Assignments and Protocol Numbers -

http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/Default.asp?url=/resources/documentation/windows/2000/server/reskit/en-us/cnet/cnfc_por_ZQYU.asp

The Internet Assigned Numbers Authority coordinates the use of well-known ports -

http://www.iana.org/assignments/port-numbers

For more information about how to configure DTC to use a specific range of ports, see the "Configuring Microsoft Distributed Transaction Coordinator (DTC) to work through a firewall" -

250367 (http://support.microsoft.com/kb/250367/)

File Replication Service

For more information about how to configure FRS to work with a firewall, see the "How to restrict FRS replication traffic to a specific static port" -

319553 (http://support.microsoft.com/kb/319553/)

Internet Information Services

For more information about the ports that are used by IIS 4.0, by IIS 5.0, and by IIS 5.1, see the "Inetinfo services use additional ports beyond well-known ports" -

327859 (http://support.microsoft.com/kb/327859/)

SQL Server

For more information about how SQL Server 2000 dynamically determines ports for secondary instances, see the "Behavior of SQL Server 2000 Network Library during dynamic port detection" -

286303 (http://support.microsoft.com/kb/286303/)

For more information about the ports that are used by SQL Server 7.0 and SQL Server 2000 for OLAP, see the "TCP ports used by OLAP services when connecting through a firewall" -

301901 (http://support.microsoft.com/kb/301901/)

Terminal Services

For more information about how to configure the port that is used by Terminal Services, see the "How to change Terminal Server's listening port" -

187623 (http://support.microsoft.com/kb/187623/)

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