How To Fix NET014 - DNS name of local host

SAP Error Message - Details

• Message type: E = Error

• Message class: NET - Network Messages

• Message number: 014

• Message text: DNS name of local host

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 NET014 - DNS name of local host ?

  The SAP error message NET014 typically indicates an issue with the DNS name resolution of the local host. This error can occur when the SAP system is unable to resolve the hostname of the machine it is running on, which can lead to connectivity issues.
  Cause:
  
  Incorrect Hostname Configuration: The hostname of the server may not be correctly configured in the system settings.
  DNS Issues: The DNS server may not be able to resolve the hostname to an IP address.
  Hosts File Misconfiguration: The /etc/hosts file (on Unix/Linux) or C:\Windows\System32\drivers\etc\hosts file (on Windows) may not contain the correct entries for the hostname.
  Network Configuration: There may be network issues preventing the resolution of the hostname.
  Firewall or Security Settings: Firewalls or security settings may be blocking DNS queries.
  
  Solution:
  
  
  Check Hostname Configuration:
  
  Ensure that the hostname is correctly set in the SAP system profile. You can check this in the instance profile parameters (e.g., SAPHOSTAGENT).
  Use the command hostname in the command line to verify the current hostname.
  
  
  
  Update the Hosts File:
  
  Edit the /etc/hosts file (Linux/Unix) or C:\Windows\System32\drivers\etc\hosts file (Windows) to include an entry for the hostname and its corresponding IP address. For example:
  127.0.0.1   localhost
  192.168.1.10   myhostname
  
  
  
  
  Check DNS Configuration:
  
  Verify that the DNS server settings are correct. You can check the DNS settings in the network configuration.
  Use commands like nslookup or ping to test if the hostname resolves correctly.
  
  
  
  Restart Network Services:
  
  After making changes, restart the network services or the entire server to ensure that the changes take effect.
  
  
  
  Check Firewall Settings:
  
  Ensure that there are no firewall rules blocking DNS traffic. You may need to allow traffic on port 53 (UDP/TCP) for DNS.
  
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes for any specific patches or updates related to this error. SAP's support portal may have additional information or solutions.
  
  
  
  Related Information:
  
  SAP Kernel Version: Ensure that you are using a supported version of the SAP kernel, as older versions may have bugs related to network connectivity.
  SAP Community: The SAP Community forums can be a valuable resource for troubleshooting and finding solutions to similar issues faced by other users.
  Logs: Check the SAP system logs (e.g., dev_w0, dev_r0) for more detailed error messages that may provide additional context for the issue.
  
  By following these steps, you should be able to resolve the NET014 error and ensure that your SAP system can correctly resolve the local hostname.