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Starting and Stopping the Service ​

Windows ​

Use the Services console or the sc command:

cmd
sc start "DICOMCapacitorService"
sc stop "DICOMCapacitorService"
sc query "DICOMCapacitorService"

Or use the Services MMC (services.msc) to start, stop, and configure the startup type.

macOS ​

DICOM Capacitor runs as a LaunchDaemon with the label co.fluxinc.dicom-capacitor.

Start:

bash
sudo launchctl bootstrap system /Library/LaunchDaemons/co.fluxinc.dicom-capacitor.plist
sudo launchctl kickstart -k system/co.fluxinc.dicom-capacitor

Stop:

bash
sudo launchctl bootout system/co.fluxinc.dicom-capacitor

Restart:

bash
sudo launchctl bootout system/co.fluxinc.dicom-capacitor || true
sleep 2
sudo launchctl bootstrap system /Library/LaunchDaemons/co.fluxinc.dicom-capacitor.plist
sudo launchctl kickstart -k system/co.fluxinc.dicom-capacitor

Check status:

bash
sudo launchctl print system/co.fluxinc.dicom-capacitor

Enable/disable auto-start:

bash
sudo launchctl enable system/co.fluxinc.dicom-capacitor
sudo launchctl disable system/co.fluxinc.dicom-capacitor

The service is configured with KeepAlive set to restart on failure. If the process exits with a non-zero status, launchd will restart it after 10 seconds.

Linux ​

DICOM Capacitor runs as a systemd service named dicom-capacitor.

Start:

bash
sudo systemctl start dicom-capacitor

Stop:

bash
sudo systemctl stop dicom-capacitor

Restart:

bash
sudo systemctl restart dicom-capacitor

Check status:

bash
sudo systemctl status dicom-capacitor

Enable/disable auto-start:

bash
sudo systemctl enable dicom-capacitor
sudo systemctl disable dicom-capacitor

The service is configured with Restart=on-failure and a 10-second restart delay.

Docker ​

bash
docker compose up -d          # Start
docker compose stop            # Stop
docker compose restart         # Restart
docker compose logs -f         # Follow logs

See the Docker Operations page for more details.

Health Check ​

You can verify the service is accepting DICOM connections using echoscu (from dcmtk):

bash
echoscu -aec FLUX_CAPACITOR localhost 1040

Replace FLUX_CAPACITOR with your configured myAeTitle and 1040 with your configured scpPort.

Viewing Logs ​

PlatformCommand
WindowsOpen %ProgramData%\Flux Inc\DICOM Capacitor\log\capacitor_service.log
macOStail -f /var/lib/dicom-capacitor/data/log/capacitor_service.log
macOS (launchd errors)tail -f /var/lib/dicom-capacitor/data/log/launchctl-error.log
Linuxjournalctl -u dicom-capacitor -f
Linux (file)tail -f /var/lib/dicom-capacitor/data/log/capacitor_service.log
Dockerdocker compose logs -f

See Interrogating the Logs for more details on log files and rotation.