Q/R from remote orthanc server ( not in the same LAN) with DICOM web plugin

Hi there,

I’ve been using Orthanc for several years.
I’m successful in integrating with several modalities and an OHIF viewer.
Modalities send the DICOM image to Orthanc server, and I can see study list and dicom image on OHIF.

Now, I would like to ask if I can Q/R from a remote orthanc server ?
I mean it is not in the same LAN.
Please refer to the attached picture in detail.
I would like to Q/R to orthanc server in hospital-B from hospital-A without a VPN.

I have read orthanc book and other articles as below ;
https://book.orthanc-server.com/plugins/dicomweb.html

https://book.orthanc-server.com/integrations/integrate-osirix-using-dicomweb.html

https://www.osirix-viewer.com/installing-orthanc-open-source-pacs-on-mac/

And it seems that the DICOM web plugin can be used in the same LAN.
Can it be used with a remote orthan server ?
Then, should IPv4 be a global IP address ? or should we use DNS ?
Or should we deploy an Orthanc server on a cloud server such as AWS or GCP or use VPN in this case ?

Our environment is as below ;
Orthanc server : version 1.11.1 ( installed on windows11 local machine from installer)

Sorry for my elementary question, because I’m a rookie in this field.
Any advice, teaching and hints would be highly appreciated.

Remote Orthanc Server.jpg

Hi,
I think you should consult this with your IT because this question is out of scope of the Orthanc itself. But beware that DICOM is not design to be secure.
But this could be accomplished both using public IP connection and/or DNS with appropriate settings on your UTM and using encrypted connection on the Orthanc site or your reverse proxy if we’are talking about Internet.

I’m a Veterinarian and use orthanc to provide a user portal for our emergency center’s images. Our referring vets just have access to the orthanc and not the main pacs, and it just has a limited number of the last month’s rads on it. I’m lucky that I don’t have all the hipa requirements to seperate all the various client practices.

The orthanc to orthanc forwarding is very easy to do using a simple one line lua script. When I tried it, I just googled examples of orthanc and lua script, and it was quite straightforward Literally a one line script. I don’t have my example to give right now, as our newer xray can send to 2 pacs automatically.

As to the security in the link between the two… I second the notion of asking for help from IT You should only need the vpn or ssh on the link between the orthanc servers and should be able to accomplish that without radically changing each locations infrastructure