Network Services
The servers are the most vulnerable part of your network infrastructure and you should take special care to protect them from unauthorized access. However, there are a number of network services that allow server access, and you should take appropriate precautions when using these services.
General Network Services
A typical UNIX or Windows server machine runs many network services of which only a few are actually needed for running an SAP system. The names of these services are contained in the file /etc/services. This file maps the symbolic name of the service to a specific protocol and numeric port number. Under Windows, the file is located at: C:/Windows/System32/drivers/etc/services.
SAP Network Services
SAP systems also offer various network services in their own infrastructures. As with general network services, we also recommend disabling any SAP services that you do not need with your installation.
For more information about the ports used by SAP NetWeaver products, see TCP/IP Ports of All SAP Products on the SAP Help Portal at http://help.sap.com/viewer/ports.
Additional Information
For a list of well-known port numbers, see the list provided by the Internet Assigned Numbers Authority (IANA) at http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xml
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