Restrict Which DICOM Sources May Send

The Sources tab displays all configured sources for the selected forward node.

Sources view Sources view

A source is used to control which entities can send DICOM data to the forward node. It validates that received DICOM instances come from a known Application Entity Title (AET).

Info

If no sources are defined, the forward node will accept DICOM instances from any AET without restrictions.

Create a source

To create a new source, click the Source button and configure the following fields:

Creation source Creation source

Field Description Required
AETitle Application Entity Title of the source DICOM node (16 characters max) Yes
Description Optional description to identify the source No
Hostname Hostname or IP address of the source DICOM node No*

*Fill in the Hostname when you enable the “Check the hostname” option. When enabled, Karnak validates both the AET and the hostname (or IP address) of the calling node during the DICOM association, and refuses the connection when the hostname does not match.

Source validation behavior

When a DICOM instance is received by the forward node:

  • With sources configured: Only instances from registered AETs (and hostnames, if enabled) are accepted. Instances from any other node are refused with the DICOM status Not Authorized (0124H) and are listed in the Monitoring view as not transferred, with the reason Source not authorized: .
  • Without sources configured: All instances are accepted.

This provides flexible security control for your DICOM workflow.