2 Replies Latest reply on Feb 6, 2013 2:40 PM by Kevin Thompson

    Use oracle password authentification with NTS

    Kevin Thompson

      Database: Oracle
      OS: Windows Server 2008 R2

      I am trying to create a database link from a RAC database to a remote database. I have added an entry for the remote database in the tnsnames.ora on all RAC servers but when I try a SQLplus connection I get:
      ORA-12638 Credential retrieval failed

      The sqlnet.ora has the following entry:

      I know setting this to (NONE) will prevent this ORA-12638 error but my understanding is that NTS is required for RAC - please correct me if you I'm wrong?

      Basically, I want to use Oracle username/password authentication for a database link without setting the SQLNET.AUTHENTICATION_SERVICES= (NONE)

      All comments welcome !