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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Rogue TNSNAMES.ORA files Revisited
Brian,
The order in which the TNS connection searches are performed can also easily be determined by using the 'truss' command on Solaris. I used this to prove my case to a PHB of a smart-aleck Developer who was side-stepping our move to an Oracle Name Service in a prior assignment.
I see what you mean - been there done that!
Take care bro!
John Kanagaraj
Oracle Applications DBA
DBSoft Inc
(W): 408-970-7002
I don't know what the future holds for me, but I do know who holds my future!
-----Original Message-----
Sent: Wednesday, January 29, 2003 10:14 AM
To: Multiple recipients of list ORACLE-L
A few days (or was that weeks??) ago, someone posted some problems they were having connecting to a database defined in their tnsnames.ora file. The problem was resolved when they found out that there was a 'rogue' tnsnames.ora file residing in the same directory as the binary. The binary file was resolving a database's address by using the local tnsnames.ora first.
I recently had a similar issue (a long story, available on http://www.clanmcgraw.com/oracle.html for those interested) where sqlplus was resolving a database address by using a tnsnames.ora file stored in /var/opt/oracle (on Solaris 8). I thought that was because I did not have the TNS_ADMIN environment variable set properly by the oraenv file.
I did some research on Metalink, and under Note 114085.1, found the following information that others might find useful: Windows NT/2000 running Oracle 9i
First: The directory where the application is launched. For example, if sqlplus resides in
ORACLE_HOME\bin\sqlplus but was launched from the c:\temp directory, then
c:\temp is searched for a tnsnames.ora file.
Second: The value of the TNS_ADMIN environment variable.
Third: ORACLE_HOME\network\admin
Sun Solaris running Oracle 8i or 9i
First: The oracle user's home directory is searched for a hidden '.tnsnames.ora'
Second: The value of the TNS_ADMIN environment variable.
Third: /var/opt/oracle
Fourth: $ORACLE_HOME/network/admin
Some were talking about an April Fool's joke with local tnsnames.ora files.
I think you'd have a lot more fun with the .tnsnames.ora file, if you're on
Solaris. J
Hope that information is useful to someone out there...
Brian
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: John Kanagaraj INET: john.kanagaraj_at_hds.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-LReceived on Wed Jan 29 2003 - 14:13:58 CST
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