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Listener log

The listener log is used for Network Service troubleshooting and real-time security monitoring. The listener log includes:

  •  Client connection information, such as host IP, port, program
  •  TNS related errors, such as listener or protocol errors
  •  Service register/update information

The table below provides the default location for the log file and the query you can run in case location has changed.

Log format Oracle version Tags Default file location
Plain text 10g (Linux and Windows)

oracle.listener.text

$ORACLE_BASE/product/db_1/network/log/listener.log

  • Query this location by running:

lsnrctl status

XML 11g/12c (Linux and Windows)

oracle.listener.xml

$ORACLE_BASE/diag/tnslsnr/$HOST_NAME/listener/ alert/log.xml 

  • Query this location by running:

lsnrctl status

The listener log source types map to the following CIM data model:

Tags

CIM Data Models

oracle.listener.text

Authentication data model object:

  • Authentication

oracle.listener.xml

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