Search Order for TNS files - listener.ora, sqlnet.ora, tnsnames.ora ..etc. (Doc ID 464410.1)

Last updated on OCTOBER 31, 2016

Applies to:

Oracle Net Services - Version 9.2.0.2 to 11.2.0.4 [Release 9.2 to 11.2]
Generic UNIX
Note that this does not apply to Enterprise Manager which searches ORACLE_HOME/network/admin unless TNS_ADMIN is set.

Goal

The goal of this document is to explain how Oracle Net searches for the configuration files listener.ora, sqlnet.ora, tnsnames.ora and cman.ora.

Solution

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