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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Rogue TNSNAMES.ORA files Revisited
Brian,
I used the following command - a grep of 'access' is pasted below: (I should mention that we use Oracle Name Service, so after getting to the proper sqlnet.ora, you will not see access of the tnsnames.ora.
John
truss -f sqlplus '/ as sysdba' > truss.out 2>&1 <<EOF
exit
EOF
5484: access("/u01/c4prdb/8.1.7/network/admin/ldap.ora", 0) Err#2 ENOENT
5484: access("/u01/c4prdb/8.1.7/network/admin/ldap.ora", 0) Err#2 ENOENT
5484: access("/u01/c4prdb/8.1.7/network/admin/C4PR/sqlnet.ora", 0) = 0
5484: access("/export/home/oracle/.sqlnet.ora", 0) Err#2 ENOENT
5484: access("/u01/c4prdb/8.1.7/network/admin/C4PR/intchg.ora", 0) Err#2
ENOEN
5484: access("/var/opt/oracle/intchg.ora", 0) Err#2 ENOENT
5484: access("/u01/c4prdb/8.1.7/network/admin/intchg.ora", 0) Err#2 ENOENT
5484: access("/u01/c4prdb/8.1.7/network/admin/C4PR/tnsnav.ora", 0) Err#2
ENOEN
5484: access("/var/opt/oracle/tnsnav.ora", 0) Err#2 ENOENT
5484: access("/u01/c4prdb/8.1.7/network/admin/tnsnav.ora", 0) Err#2 ENOENT
5485: access("/u01/c4prdb/8.1.7/network/admin/ldap.ora", 0) Err#2 ENOENT
5485: access("/u01/c4prdb/8.1.7/network/admin/C4PR/sqlnet.ora", 0) = 0
5485: access("/u01/c4prdb/8.1.7/network/trace/svr_5485.trc", 0) Err#2
ENOENT
5485: access("/var/opt/oracle/intchg.ora", 0) Err#2 ENOENT
5485: access("/u01/c4prdb/8.1.7/network/admin/intchg.ora", 0) Err#2 ENOENT
5485: access("/u01/c4prdb/8.1.7/network/admin/C4PR/tnsnav.ora", 0) Err#2
ENOEN
5485: access("/var/opt/oracle/tnsnav.ora", 0) Err#2 ENOENT
5485: access("/u01/c4prdb/8.1.7/network/admin/tnsnav.ora", 0) Err#2 ENOENT
5485: access("/etc/ORACLE/WALLETS/oracle", 0) Err#2 ENOENT
> -----Original Message-----
> From: Brian McGraw [mailto:brian.mcgraw_at_infinity-insurance.com]
> Sent: Wednesday, January 29, 2003 1:24 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: Rogue TNSNAMES.ORA files Revisited
>
>
> Thanks, John.
>
> Just out of curiousity - for those of us who aren't Unix
> experts - what
> options did you use for truss to obtain that info.??
>
> Brian
>
> -----Original Message-----
> Kanagaraj
> Sent: Wednesday, January 29, 2003 2:14 PM
> To: Multiple recipients of list ORACLE-L
>
> 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!
>
> ** The opinions and statements above are entirely my own and not those
> of my
> employer or clients **
>
>
> -----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
> ----------------------------------------------
> | Brian McGraw /* DBA */ Infinity Insurance |
> | mailto:Brian.McGraw_at_Infinity-Insurance.com |
> ----------------------------------------------
>
> --
> 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
> ---------------------------------------------------------------------
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>
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Brian McGraw
> INET: brian.mcgraw_at_infinity-insurance.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
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>
-- 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-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Wed Jan 29 2003 - 17:02:52 CST
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