Why is tnsping not reliable from ports 20, 21, 22?

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                          I think it's not reliable because those ports are used for FTP, SSH and SFTP but I am not sure that's the correct response in respect for Oracle DBA
                        

Asked by GettingStarted (176 rep)

Feb 23, 2019, 10:12 PM
Last activity: Feb 24, 2019, 09:31 AM

Why is tnsping not reliable from ports 20, 21, 22?

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