SanteDB iCDR carries two different auditing technologies in the default installation:
- ATNA Auditing - Which is performed over UDP or TCP with NEMA DICOM or IETF RFC3881 formatted audits. This is recommended for high traffic environments at is has little overhead.
- FHIR Auditing - Which is performed over HTTP with FHIR audit event resources.
You can only enable one audit dispatcher (FHIR OR ATNA , if you enable one the other will be disabled).
The ATNA auditing dispatch service, when enabled, will ensure that SanteDB forwards audits for events which are to be dispatched over UDP.