Re: ORA-12638 Credential Retrieval Failed - newbie question

Frank van Bortel <f.van.bortel_at_vnl.nl> writes:

> Dan Metzger wrote:
>
> > I just set up up 8.1.5 on NT and am trying to connect to the db via a win95
> > client now. The DB runs fine on the server and I can connect to the data
> > source but whenever I test the service name I've created on the client, I
> > get this error.
> >
> > ORA-12638 Credential retrieval failed
> >
> > Any ideas?
> >
> > Dan M
>
> Off the top of my head: any 12xxx is a networking error. Not familiar with this
> one.

In this case, this error means that the Windows 95 client cannot authenticate itself to the NT server. This is a known bug and (I believe) there is a fix for it. Oracle Support will know for sure.

BTW, this error is a "catchall" and can be generated in many ways.

> Do you have CRYPTO_SEED on either side (but not the other?).
> This forces encrypted connections. If the server is set up to accept only
> encrypted
> connections, but the client is not, I can imagine something like the above to
> appear.

In a word, no. :-) the CRYPTO_SEED parameter does not affect network authentication, only encryption.

                                          Rick

P.S. In previous posts, I stated that there was no workaround to this problem. I was mistaken.

>
> HTH
> --
> Met vriendelijke groet/kind regards,
>
> Frank van Bortel
> Technical consultant Oracle
>
>

--

                                Rick Wessman
                                Server Security Group
                                Oracle Corporation
                                rwessman_at_us.oracle.com

     The opinions expressed above are mine and do not necessarily reflect
                         those of Oracle Corporation.