# Running Slicer on headless server (Installing Extensions and more...)

**URL:** <https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689>\
**Category:** Support\
**Created:** [May 25, 2020, 9:42am UTC](https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689 "2020-05-25T09:42:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Davide\_Cester](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/davide_cester/32/6564_2.png) [@Davide\_Cester](https://discourse.slicer.org/u/Davide_Cester)\
**Post date:** [May 25, 2020, 12:29pm UTC](https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689/2 "2020-05-25T12:29:05Z")

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Here some of the solutions I found so far:

> [@Davide\_Cester](#):
>
> how do I install the SlicerJupyter extension without the GUI?

[https://www.slicer.org/wiki/Documentation/Nightly/Developers/FAQ/Extensions#How\_to\_manually\_download\_an\_extension\_package.3F](https://www.slicer.org/wiki/Documentation/Nightly/Developers/FAQ/Extensions#How_to_manually_download_an_extension_package.3F)  
However the site won’t load normally, see [Extension app store not accessible (http://slicer.kitware.com/midas3/slicerappstore)](https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550) for a workaround. Even in this case no extension is found, for any combination of OS and version…?  
That site seems fundamentally broken, everything I clic just generates an endless loading in the browser.

> [@Davide\_Cester](#):
>
> how can I access the command to be copied in the SlicerJupyter Extension tab?

From [https://github.com/Slicer/SlicerJupyter:](https://github.com/Slicer/SlicerJupyter:)  
jupyter-kernelspec install /tmp/SlicerJupyter-build/inner-build/share/Slicer-4.11/qt-loadable-modules/JupyterKernel/Slicer-4.9/ --replace --user  
Of course the paths will have to be updated but that depends on the extension installation, which I’m not yet able to do…

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