JSI Tip 9069. Service overview and network port requirements for the Windows Server system.

Microsoft Knowledge Base Article 832017 contains the following summary:

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 Windows server system includes a comprehensive and integrated infrastructure that is designed to meet the requirements of developers and of information technology (IT) professionals. This system is designed to run programs and solutions that information workers can use to obtain, to analyze, and to share information quickly and easily. These Microsoft client, server and server program products use a variety of network ports and protocols to communicate with client systems and with other server systems over the network. Dedicated firewalls, host-based firewalls, and Internet Protocol security (IPsec) filters are other important components that are required to help secure your network. However, if these technologies are configured to block ports and protocols that are used by a specific server, that server will no longer respond to client requests.

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