kerberos password change in master-slave environment

[Ken Hornstein]

>Unfortunately, PREAUTH_FAILED corresponds to the password being deemed
>incorrect, since we have requires_preauth on all user principals.

Ever hear of the phrase, "a little knowledge is dangerous"? :-)

KRB5_PREAUTH_FAILED is an internal client-side library error.

KRB5KDC_ERR_PREAUTH_FAILED is returned by the KDC when preauth has failed.

--Ken