# Paraview client/server display not accessible message
**URL:** https://discourse.paraview.org/t/paraview-client-server-display-not-accessible-message/6557
**Category:** ParaView Support
**Created:** [February 26, 2021, 1:28am UTC](https://discourse.paraview.org/t/paraview-client-server-display-not-accessible-message/6557 "2021-02-26T01:28:38Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Nikolaos\_Beratlis](https://discourse.paraview.org/u/Nikolaos_Beratlis)
#### Post date: [February 26, 2021, 1:28am UTC](https://discourse.paraview.org/t/paraview-client-server-display-not-accessible-message/6557/1 "2021-02-26T01:28:38Z")
Hi,
My university has a computer cluster. They installed the Paraview server on the cluster. I perform the following steps to use Paraview as a client/server environment.
1. I ssh to the cluster
2. I request a dynamic allocation: salloc -t 30 -p defq -n 16
3. I type the command “srun hostname” to check which node was allocated, for example cpu001
4. I ssh to that node “ssh cpu001”
5. I load the paraview module, module load paraview 5.8.0
6. I run pvserver “mpirun -n 16 pvserver --force-offscreen-rendering”
7. I open another terminal and setup the tunnel to that node “ssh -L 11111:cpu001:11111”
I load Paraview client on my local computer and I connect to the Paraview server on the cluster
I get the following message: “Display is not accessible on the server side. Remote rendering will be disabled.”
I click OK and I can use Paraview but it is very slow. I believe this is because all the rendering is performed on my local computer and not on the server. What do I need to do so that the rendering is performed by the server?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 26, 2021, 8:58am UTC](https://discourse.paraview.org/t/paraview-client-server-display-not-accessible-message/6557/2 "2021-02-26T08:58:35Z")
Two possibilities:
1. There is a Xorg server running on your server and you need to use it by specifying the DISPLAY var
2. You need to use headless offscreen rendering
[https://kitware.github.io/paraview-docs/latest/cxx/Offscreen.html](https://kitware.github.io/paraview-docs/latest/cxx/Offscreen.html)
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 12, 2024, 7:22am UTC](https://discourse.paraview.org/t/paraview-client-server-display-not-accessible-message/6557/3 "2024-08-12T07:22:03Z")
A post was split to a new topic: [Cannot display on server](https://discourse.paraview.org/t/cannot-display-on-server/15209)