You must have TDNEGO installed on both the Teradata Tools and Utilities (TTU) client and the database server:
- Both the client and database must be release 15.10 or higher. All versions of the Teradata Vantage Advanced SQL Engine support TDNEGO.
- Clients using the .NET framework must be at TTU release 16.0 or higher to use SPENGO, which provides Kerberos authentication to .NET clients.
- For .NET client access to Teradata Database 15.10, TDNEGO must be manually configured to accept SPENGO as a negotiated authentication mechanism. For more information, see Changing the Configuration on Teradata Vantage Nodes and SPNEGO Mechanism Offered by TDNEGO on Teradata Database 15.10 for TTU 16.0 .NET Clients.