0004001500 (user authentication)
This log ID relates to a system event involving user authentication queries.
Message:valid authentication query
Meaning: A valid user authentication query was received.
Priority: Information
Or
Message:invalid authentication query
Meaning: An invalid user authentication query was received.
Priority: Information
0004001501 (user authentication relay)
This log ID relates to authentication result when the virtual server binds to an authentication policy which uses authentication relay.
Message:[Valid | Invalid] [authentication-relay | kerberos authentication-relay] query
Meaning: An HTTP basic or Kerberos constrained delegation authentication succeeded or failed.
Priority: Information/Notification