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TNS-12564: TNS connection refused - IT Tutorial

    https://ittutorial.org/tns-12564-tns-connection-refused/
    TNS-12564: TNS:connection refused. Cause: The connect request was denied by the remote user (or TNS software). Action: Not normally visible to the user. For further details, turn on tracing and reexecute the operation.

TNS-12564: TNS:connection refused — oracle-tech

    https://community.oracle.com/tech/developers/discussion/2436254/tns-12564-tns-connection-refused
    Hi Guru's My DB Version: 10gR2 OS: Windows Server I am trying to load text file using sql loader, previouly i am not getting thi sproblem but from morning i am geeting

TNS-12564: TNS:connection refused — oracle-tech

    https://community.oracle.com/tech/developers/discussion/2436205/tns-12564-tns-connection-refused
    Hi Guru's My DB Version: 10gR2 OS: Windows Server I am trying to load text file using sql loader, previouly i am not getting thi sproblem but from morning i am geeting

TNS-12564 Errors and the Importance of the Parameter

    https://blog.pythian.com/tns-12564-errors-and-the-importance-of-the-parameter-local_listener-during-a-data-guard-switchover/
    A couple of weeks ago a client of mine had a situation where a Data Guard (DG) switchover that should have taken five minutes, took over …

Strange error: TNS-12564: TNS:connection refused

    https://groups.google.com/g/oracle_dba_experts/c/5zkf1JeMppg
    TNS-12564: TNS:connection refused ns secondary err code: 0 nt main err code: 0 nt secondary err code: 0 >>> ... // *Action: Turn on tracing at the ADMIN level and reexecute the operation. // Verify that the ORACLE Server executable is present and has execute // permissions enabled. Ensure that the ORACLE environment is specified

TNS-12564: TNS:Connection Refused In Oracle 11G On …

    https://www.toolbox.com/tech/oracle/question/tns-12564-tns-connection-refused-in-oracle-11g-on-windows-7-050217/
    Solution.: 1.) Check your listner by issueing “lsnrctl status” command. Verify if the listener is up and running. 2.) Verify your alert log and sqlnet.log to see if any errors. 3.) Verify if you have specified SID or SERVICE_NAME in you Global. tnsnames.ora file.

TNS-12564: TNS:connection refused | Toolbox Tech

    https://www.toolbox.com/tech/oracle/question/tns-12564-tns-connection-refused-120813/
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Strange error: TNS-12564: TNS:connection refused

    https://groups.google.com/d/msg/oracle_dba_experts/5zkf1JeMppg/6pOepGpvjy8J
    TNS-12564: TNS:connection refused ns secondary err code: 0 nt main err code: 0 nt secondary err code: 0 >>> ... // *Action: Turn on tracing at the ADMIN level and reexecute the operation. // Verify that the ORACLE Server executable is present and has execute // permissions enabled. Ensure that the ORACLE environment is specified

EM12c EM13c: Metric Collection Error for Listener Target …

    https://support.oracle.com/knowledge/Enterprise%20Management/2296762_1.html
    Unable to add the listener as a target in the EM12c or EM13c setup and has a Metric Evaluation Error: TNS-12564: TNS:connection refused TNS-01194: The listener command did not arrive in a secure transport.

Re: ORA-12564: TNS:connection refused

    https://www.orafaq.com/maillist/oracle-l/2001/07/11/1019.htm
    As others have suggested, you might also enable net8 tracing as that is most likely to reveal the real culprit. HTH, Anita "Grabowy, Chris" <cgrabowy_at_fcg.com> wrote: ... > ORA-12564: > TNS:connection refused. We are trying to resolve a > connectivity issue using > Gauntlet Firewall. We are trying to connect to a

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