# mpiexec of pvserver on hosts that are firewalled off to each other ?

**URL:** https://discourse.paraview.org/t/mpiexec-of-pvserver-on-hosts-that-are-firewalled-off-to-each-other/7910
**Category:** ParaView Support
**Created:** [September 2, 2021, 12:15am UTC](https://discourse.paraview.org/t/mpiexec-of-pvserver-on-hosts-that-are-firewalled-off-to-each-other/7910 "2021-09-02T00:15:52Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 2, 2021, 8:28am UTC](https://discourse.paraview.org/t/mpiexec-of-pvserver-on-hosts-that-are-firewalled-off-to-each-other/7910/2 "2021-09-02T08:28:41Z")

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> [@Nicholas\_Yue](#):
>
> Is there some way to setup an ssh tunnel for mpiexec to communicate ?

Yes.

Manually:  
[https://www.paraview.org/Wiki/ParaView:Server\_Configuration](https://www.paraview.org/Wiki/ParaView:Server_Configuration)

Natively in ParaView:

> [@Using SSH Support to secure your client/server communication with ParaView](https://discourse.paraview.org/t/using-ssh-support-to-secure-your-client-server-communication-with-paraview/682):
>
> Since [mr](https://gitlab.kitware.com/paraview/paraview/merge_requests/2652) and [mr](https://gitlab.kitware.com/paraview/paraview/merge_requests/2821), ParaView master now has a support for ssh, which includes port forwarding. In order to use it, you will need first to install a terminal and an ssh tool. Terminals are available by default on Windows, Mac and virtually on all linux distribution. Ssh is available by default on mac, on all package manager on all linux distribution. On windows ssh is now available by default with the Windows 10 Spring update but we recommend installing [Putty](https://www.chiark.greenend.org.uk/~sgtatham/putty/) as support for rc connection is bett…

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