Change XNAT port after installation

[Bioengineering Neuromed]

Dear XNAT users,

I have installed XNAT using the vagrant installation.

I would like to change the default port (8104) to another value (104), because I'm not able to communicate with the internal PACS, but I need to use this port (104).

How to do this?

I don't want to corrupt XNAT installation because we have already created the projects with the data inside.

Thank you in advance for your help.

Best regards,

Luigi Pavone

[Moore, Charlie]

Hi Luigi,

1. Click Administer > Site Administration from the top bar.
2. Click the DICOM SCP Receivers tab.
3. Click on the link for the SCP receiver and modify the port. Save.

Thanks,

Charlie

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Subject: [XNAT Discussion] Change XNAT port after installation

 

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[Herrick, Rick]

You can change the port easily as an administrator. Just click Administer -> Site Administration, then select the DICOM SCP Receivers tab. You can disable the default receiver on port 8104 if you like, or you can leave it running, as it doesn’t prevent you from running another receiver. Or you can edit the default receiver to change the port to 104 in that definition.

 

You don’t have to worry about affecting your projects or your data by adding, modifying, or deleting DICOM SCP receivers. Once the receiver has received DICOM data and written it to the prearchive, its involvement in the data lifecycle is done.

 

The one thing I’d caution you on is that ports below 1024 are called well-known ports. If you’re running XNAT on any kind of *nix operating system, only superusers (i.e. root) can bind to these ports. This isn’t an issue for dedicated systems like DICOM workstations and PACS, but definitely will be a problem for Tomcat running on, e.g., Ubuntu or CentOS. The only ways I know to work around this are:

 

• Make root the Tomcat service user, but that opens up the server to root-access exploits.
• Use cap_net_bind_service to mark the executable as privileged to bind to well-known ports. The problem with this is that the executable in this case is java, which means anyone who can run java can bind to well-known ports, which is another security risk.

 

-- 

Rick Herrick

XNAT Architect/Developer

Computational Imaging Laboratory

Washington University School of Medicine

 

 

From: xnat_di...@googlegroups.com <xnat_di...@googlegroups.com> on behalf of Bioengineering Neuromed <bioengineer...@gmail.com>
Date: Tuesday, September 28, 2021 at 5:17 AM
To: xnat_discussion <xnat_di...@googlegroups.com>
Subject: [XNAT Discussion] Change XNAT port after installation

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[Bioengineering Neuromed]

Dear Rick,

thank you so much for your reply.

I had already done the changes in DICOM SCP receivers, probably the problem is the one you explained to me.

I will try to fix it.

thank you so much.

Regards,

Luigi