How To Fix NET019 - Name resolution of services and port numbers

NET019 - Overview

• Message type: E = Error

• Message class: NET - Network Messages

• Message number: 019

• Message text: Name resolution of services and port numbers

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message NET019 - Name resolution of services and port numbers ?

  The SAP error message NET019, which states "Name resolution of services and port numbers," typically indicates that the SAP system is having trouble resolving the service names or port numbers defined in the services file or in the SAP configuration. This can lead to issues with network connectivity, as the system cannot determine the correct ports to use for communication.
  Causes:
  
  Incorrect Configuration: The SAP system may be configured with incorrect service names or port numbers.
  Missing Entries: The required service names or port numbers may not be present in the services file (usually located at /etc/services on Unix/Linux systems).
  Network Issues: There may be underlying network issues that prevent the SAP system from resolving names correctly.
  DNS Issues: If the system relies on DNS for name resolution, there may be problems with the DNS configuration.
  Firewall or Security Settings: Firewalls or security settings may be blocking access to the required ports.
  
  Solutions:
  
  
  Check the services File:
  
  Ensure that