Mailing List Archive: X Forwarding from virtual host

X Forwarding from virtual host

Oct 13, 2020, 7:20 PM

Post #1 of 3 (336 views)

Okay, this is I HOPE a simple enough question. I have a virtual server
running on my Win10 Host (not my ideal O/S!) that has a full X
environment on it. I usually connect via Putty(ssh) using VirtualBox's
Host Only network. That's great for text, but how do I set things up so
that I can run X programs on the virtual box and have them show on my
Win host? I have an implimentation of X for Windows (Xming)running, and
I set putty to forward X connections, but when I try something as silly
as xeyes, it fails. I've notice that the DISPLAY environment isn't being
set, but setting it myself doesn't seem to help. The Virtual Server's IP
is 192.168.56.25 and the Host automatically gets .1, so I tried setting
DISPLAY=129.168.56.1:0 and it doesn't work. I get a message "No protocol
specified" followed by the error "Error: Can't open display:
192.168.56.1:0.0"

Putty is set to forward X connections, and uses the same destination.
What am I doing wrong?

--
Dan Egli
On my Test server

Re: X Forwarding from virtual host [ In reply to ]

joost at antarean

Oct 13, 2020, 9:06 PM

Post #2 of 3 (336 views)

Permalink

On Wednesday, October 14, 2020 4:20:46 AM CEST Dan Egli wrote:
> Okay, this is I HOPE a simple enough question. I have a virtual server
> running on my Win10 Host (not my ideal O/S!) that has a full X
> environment on it. I usually connect via Putty(ssh) using VirtualBox's
> Host Only network. That's great for text, but how do I set things up so
> that I can run X programs on the virtual box and have them show on my
> Win host? I have an implimentation of X for Windows (Xming)running, and
> I set putty to forward X connections, but when I try something as silly
> as xeyes, it fails. I've notice that the DISPLAY environment isn't being
> set, but setting it myself doesn't seem to help. The Virtual Server's IP
> is 192.168.56.25 and the Host automatically gets .1, so I tried setting
> DISPLAY=129.168.56.1:0 and it doesn't work. I get a message "No protocol
> specified" followed by the error "Error: Can't open display:
> 192.168.56.1:0.0"
>
> Putty is set to forward X connections, and uses the same destination.
> What am I doing wrong?

http://www.geo.mtu.edu/geoschem/docs/putty_install.html

Re: X Forwarding from virtual host [ In reply to ]

adamcarter3 at gmail

Oct 15, 2020, 2:20 AM

Post #3 of 3 (336 views)

Permalink

On Wed, Oct 14, 2020 at 1:20 PM Dan Egli <dan@newideatest.site> wrote:

> Okay, this is I HOPE a simple enough question. I have a virtual server
> running on my Win10 Host (not my ideal O/S!) that has a full X environment
> on it. I usually connect via Putty(ssh) using VirtualBox's Host Only
> network. That's great for text, but how do I set things up so that I can
> run X programs on the virtual box and have them show on my Win host? I have
> an implimentation of X for Windows (Xming)running, and I set putty to
> forward X connections, but when I try something as silly as xeyes, it
> fails. I've notice that the DISPLAY environment isn't being set, but
> setting it myself doesn't seem to help. The Virtual Server's IP is
> 192.168.56.25 and the Host automatically gets .1, so I tried setting
> DISPLAY=129.168.56.1:0 and it doesn't work. I get a message "No protocol
> specified" followed by the error "Error: Can't open display: 192.168.56.1:0
> .0"
>
Usually when you forward X over ssh, DISPLAY is a port on the ssh client,
which is then forwarded by ssh to the remote port, that is, the port on the
remote server that the X server is listening on. So putty should be
automatically setting DISPLAY to something like 192.168.56.25:10.0 (ie
port 6010 on the guest) when you enable X forwarding. If it's not i'd say
there's something wrong with the putty setup.

That said, i think you should be able to just connect directly to
192.168.56.1:0.0 anyway - does Xming have an xhost setting? Does netstat on
the host show its listening on port 6000? Windows firewall?

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