I'm really stuck and frustrated with this one:-
I'm trying to issue export job from Enterprise Manager but I keep getting VNI-2015 : authentication error.
I've set the node credentials correctly and the user is a local user on the NT Server with Administrattor rights.
Any ideas please?.
Since you are connecting to the server over the network. Try connecting as a domain user instead of a local user. Also make sure that the user you have is set up with the privilege as logon as batch mode (or something like that - I just can't remember the exact wording).
Hope that helps.
Created a user in Oracle 8i ( that is what I used) user manager, using the same name and password as your Windows NT login (I use Window 2000 server) assign role of DBA.
In Oracle Manage Server Cole, select system/preferences, click preferred credentials enter the same user/password just created in database you want to connect, listener and node (just three place) use normal not sysdba
Back to the console open up schema manager, select tools/data management/import. You should be fine.