As an alternative to configuring Kerberos between the server that hosts the web site and the server that runs QlikView Web Server (QVWS), header authentication can be used. A header is always sent, but to specify which header to send, add the tag Header and a proper value in Web.config:
<add key="Header" value="QVUSER"/>
In the example above, a header with the value QVUSER\<user that is logged in> is sent to QVWS.
For information on how to configure QVWS to use header authentication.