The search order for thesqlnet.oraandldap.orafiles is as follows:
1. The directory specified by theTNS_ADMINenvironment variable, if this environment variable is set
2. The$ORACLE_HOME/network/admindirectory
The search order for thecman.ora,listener.ora, andtnsnames.orafiles is as follows:
1. The directory specified by theTNS_ADMINenvironment variable, if this environment variable is set
2. One of the following directories:
o On Solaris:
o /var/opt/oracleo On other platforms:
o /etc3. The$ORACLE_HOME/network/admindirectory