Orthanc on Ubuntu 24.04 LTS | cloudimg

Orthanc is a lightweight, standalone DICOM server for medical imaging. Scanners, ultrasound machines and other imaging equipment speak DICOM, and Orthanc gives them somewhere to send studies: it listens on the DICOM protocol, indexes every patient, study, series and instance it receives, and makes them browsable in its built in web interface, Orthanc Explorer. The same catalogue is exposed through a full REST API, so images and metadata can flow into research pipelines, teaching archives, reporting tools or your own applications without a heavyweight vendor stack.

It runs as one self contained service over an embedded database, which makes it a practical archive for departments, clinics, research groups and teleradiology projects that need a real DICOM node without operating a full enterprise picture archiving system. Orthanc listens on loopback behind nginx on port 80, which also serves an unauthenticated health endpoint for load balancer probes, while the DICOM server accepts studies on port 4242.

Secure by default: no credential ships in this image. Orthanc's packaged and container builds are widely known for a default administrator login, and this image has none. A unique administrator password is generated on each VM at first boot, and until that runs the server is fail closed, answering 401 to every request rather than exposing the archive. Authentication is explicitly enforced on every request, which Orthanc itself confirms by reporting its HTTP server as secure.

cloudimg compiles Orthanc from the official upstream release against the operating system's own libraries rather than shipping a binary that freezes private copies of OpenSSL and the DICOM toolkit inside it, so its cryptography and image parsing keep receiving operating system security updates on your VM. The release is current and carries the nine security fixes published in April 2026, and a dependency vulnerability scan is gated at build time and recorded on the image. Orthanc is licensed under the GNU General Public License v3, and the complete corresponding source ships on the image. The cloudimg charge covers packaging, security patching, image maintenance and 24/7 expert support. This image is provided by cloudimg and is not affiliated with or endorsed by the Orthanc project.