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ORA-12638: Credential retrieval failed | ORA-17503: if SQLNET AUTH to NONE

ora_hitJul 31 2018 — edited Jul 31 2018

Hello,

Oracle RAC 12.1.0.2 (2 node)

Windows 2008R2

I am trying to use DB link created from our departments to access data from other department. But while issuing SELECT statement I am getting error..

"ORA-12638: Credential retrieval failed"

From the Oracle forum & Internet, I found it can be solved by changing NTS value of SQLNET AUTH parameter to NONE..

It works after changing that parameter. But once I change that value, I am unable to login to database even wtih SYS password and gets below error.

ERROR:

ORA-01017: invalid username/password; logon denied

ORA-17503: ksfdopn:2 Failed to open file

+DATA/DTPS/PASSWORD/pwddtps.256.879004531

ORA-01017: invalid username/password; logon denied

How can we make both DB Link and SQLPLUS working without any error ?

Thank you in advance!

-Hitesh

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Locked on Aug 28 2018
Added on Jul 31 2018
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