TWO_TASK parameters prevents OS authenticated DB user

Question

Hi All,
I am facing problem while connecting an OS authenticated database user.
I am installing an application which first sets TWO_TASK parameter to the database name (e.g. TWO_TASK=DMDB .Here DMDB is also ORACLE_SID) and then tries to connect to database with a user (say appuser) which is externally authenticated by OS.
But the connection fails with an error:
ERROR:
ORA-01017: invalid username/password; logon denied
SP2-0751: Unable to connect to Oracle. Exiting SQL*Plus
I am working on SunOS and Oracle db is 9iR2.
Also note that database authenticated users are still able to connect.
This user(appuser) is created by the application itself as external user and hence cannot be modified.And in this scenario TWO_TASK variable cannot be unset.
Please help. Thanks in advance...
Also suggest whether I need to configure sqlnet.ora( I haven't done yet) ??
remote_login_passwordfile=EXCLUSIVE
Regards,
Saket Bansal

Answer 1

Hi hemant,
remote_os_authent = FALSE
But hemant ,do I need to bother for this parameter when I am connecting through server itself.
I would like to bring into ur notice that problem is relatde to TWO_TASK.
Please view the below commands and their responses.
root@chbdat4 # su - appuser
Sun Microsystems Inc. SunOS 5.9 Generic May 2002
You have new mail.
$ sqlplus /
SQL*Plus: Release 9.2.0.5.0 - Production on Fri Jun 12 12:14:02 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.5.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.5.0 - Production
SQL> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.5.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.5.0 - Production
$
$
$ TWO_TASK=DMDB
$ export TWO_TASK
$ echo $TWO_TASK
DMDB
$ sqlplus /
SQL*Plus: Release 9.2.0.5.0 - Production on Fri Jun 12 12:14:38 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-01017: invalid username/password; logon denied
Enter user-name:
This shows that connection is not made when TWO_TASK is set.
Setting of this variable cannot be avoided since it is set by the application itself.
Please suggest a solution for this.
Regards,