Questions tagged [x11-forwarding]

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x11-Forwarding fails after subsequent connection

Host: Fedora 36, 6.0.18-200.fc36.x86_64, OpenSSH_8.8p1, X11Forwarding yes Client: Windows 10, MobaXterm 22.1 I open the first connection to the host, x11-forwarding works. host01/unix:22 MIT-MAGIC-...
0 votes
1 answer
171 views

How to enable SSH remote server on "Windows 10" that works with X11 forwarding ? I get "Remote: No xauth program; cannot forward X11."

I've seen a ton of posts on this topic, but I haven't found a post that covers my specific use case. I want to connect to my Windows 10 PC via ssh and see X graphical apps on my mac laptop. The reason ...
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0 answers
8 views

Centos-Http connection fails for GUI applications/browser over Xwindows

http proxy is defined inside profile and all cli applications like curl,wget,yum all work fine. When running any browser over Xwindows and setting the proxy through the browser menu or system wide ...
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0 answers
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X forwarding broken after using Xvfb

I used Xvfb to create a fake desktop to run programs with graphical interface on a Debian pc without display for testing purposes. After completing these tests, I wanted to revert back to the "...
2 votes
0 answers
734 views

X11 forwarding works for Firefox but fails for Chromium: Unsupported authorisation protocol

I use MobaXterm to ssh into a Ubuntu20.04 machine, on which I launch firefox without problem but when I start chromium, it shows this error: MoTTY X11 proxy: Unsupported authorisation protocol [455878:...
0 votes
0 answers
616 views

How to fix the xterm(xquartz) displaying: "Error: Can't open display: localhost:11.0"

I am using Xquartz to transfer plots from one remote server (Ubuntu, connected via ssh) to my mac, while sometimes I run into problem of "Error: Can't open display: localhost:11.0". Though ...
0 votes
0 answers
442 views

Cannot enable interactive widnows using ssh -X when connecting to a Linux server from my Windows machine

I need some help. I am trying to use ssh -X to connect to a remote server that has enabled X11 forwarding. When I use my MacBook to connect to the remote server, I use ssh -X USERNAME@SERVER and then ...
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0 votes
1 answer
284 views

Why does ssh change virgl OpenGL renderer back to llvmpipe software renderer? Can I keep virgl in ssh session?

I created a Qemu VM, both host and guest being Ubuntu 20.04. Then I start the Qemu VM using command qemu-system-x86_64 ubuntu-desktop.qcow2 -m 2G -smp 2 -device virtio-vga-gl -display gtk,gl=on -nic ...
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0 votes
1 answer
196 views

X11 Forwarding or X11 Forwarding like solution between two Windows Machines instead of RDP?

On my new workplace we got two Windows computers, one for development (stationary at office) and a laptop (e.g. for remote usage or meetings). I have a difficult time to get accustomed to the Windows ...
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0 answers
126 views

ssh Lockup With ForwardX11=yes

Why do both of these lockup, never giving me my prompt back? % ssh -X $(hostname) exit % ssh -o ForwardX11=yes $(hostname) exit They both create an ssh session on the current machine with X11 ...
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1 vote
1 answer
608 views

Unable to connect to X11 Server through XOpenDisplay

I'm running two virtual machines on the same host. One with Ubuntu the other with Red Hat. Both vms have are set to the same NAT Network on VirtualBox. I am able perform X11 forwarding from one vm to ...
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0 answers
79 views

X11 forwarding fails without an error message

I would like to ssh to a docker image with X11 forwarding. When I connect using SSH -X -v and execute xclock, it seems like the application runs (it does not terminates), but no window is opened. My /...
1 vote
2 answers
2k views

WSL, Graphics Applications not working- Error: Can't open display: 0.0

I am having trouble with graphical applications and WSL. I have Ubuntu 20.04.3 with X11 installed; but am getting the following issue when I try to test with xeyes (the same happens with any other ...
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2 votes
1 answer
12k views

X11 forwarding: Unable to init server: Could not connect: Connection refused. What is needed for an X11 connection?

I want to control a no GUI Debian server by an X11 connection via ssh from Ubuntu desktop. From everything I read and watched it should work like a charm on Linux distros but it doesn't. # The ...
0 votes
1 answer
219 views

ssh connection stucks when I don't use ForwardX11 variable (-Y)

When I try to have a ssh connection to a remote machine, its freezes if I don't use ForwardX11 variable as -Y. The terminal get freezes and I cannot cancel the operation, I have to close the terminal ...
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1 vote
0 answers
118 views

How to run a GUI software from terminal, in a non-GUI supported Linux distro?

I have installed CentOS 8 with no GUI support in a virtual machine. Now I have sqldeveloper and java jdk properly installed on the same virtual machine. Env variables for java have already been set as ...
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0 answers
600 views

Run X11 Server on top of Windows Terminal Server

I would like to connect to a unix machine (GUI) over Windows Terminal Server(WTS) with multiple users (desktops). An X11 server is installed on the WTS (OpenText Exceed). I start it. I start a putty ...
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0 answers
96 views

long initial delay followed by "Can't open display" for ssh forwarding

I am experiencing a strange delay, on the order of a minute, when starting even trivial applications (think: vim) over an X connection tunneled through ssh. If the application starts (vim), the delay ...
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3 answers
761 views

ssh -X: Remote application should open hyperlinks in the local browser

I use ssh -X to execute a GUI on a remote machine. This works great, except for one thing: If I click on a hyperlink in the application, then a browser gets launched on the remote machine. In my case ...
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0 answers
2k views

Windows OpenSSH X11 client forwarding to a Linux server?

I want to ssh to a Linux device in Windows with X11 forwarding using OpenSSH. I've installed the xming server running on DISPLAY=:0 and set the environment variable using my powershell profile and ...
1 vote
1 answer
6k views

Windows 10 Ubuntu X11 with Xming (xterm: Xt error: Can't open display: localhost:0.0)

I am running ubuntu app on windows 10 (64b) same as on my other machine, exact same configuration with Xming for X11 but I am getting xterm: Xt error: Can't open display: localhost:0.0 I noticed that ...
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2 votes
1 answer
3k views

Can no longer forward X11 with MobaXterm

Until today, I was able to effortlessly enable X11-forwarding with MobaXterm from my Linux laptop to my Windows laptop. However, as of today, I am suddenly getting this error message whenever I try to ...
  • 121
1 vote
1 answer
204 views

Will a newer CPU with a few cores or an older CPU with more cores compile code faster? [closed]

I am a university student studying computer science, and I am just starting to explore the world of servers. I currently use a 2018 15" MacBook Pro as my main computer for writing, compiling, ...
2 votes
0 answers
152 views

How to run a browser over ssh remotely on the remote network

I need to access a webpage on a remote network through a headless machine I can ssh into (with sudo privileges). I can't use a direct ssh tunnel with forwarding connections (-L8080:remote.ip:80 for ...
0 votes
0 answers
1k views

How can I avoid running into "MIT-SHM missing on display" error?

I am trying to create a raytracer with a simplified X-Window Interface library provided to me (instructions example). I'm working on Ubuntu 20.04 on WSL 1 and use VcXServ. As for now the only thing I ...
0 votes
0 answers
412 views

Is it possible to attach a remote X11 session as second monitor?

I am trying to use the monitor of a remote system as second monitor on my local system. I can use X11 ssh forwarding but this is not doing what I want, because then I have to set the DISPLAY variable ...
0 votes
1 answer
3k views

Why do only some applications generate "MobaXterm X11 proxy: Unsupported authorisation protocol" error?

This question is related to How to fix "MobaXterm X11 proxy: Unsupported authorisation protocol", but the answer there did not work for me. I use MobaXterm to ssh from a Windows PC to a ...
2 votes
0 answers
1k views

Why is delay with VcXsrv so much slower than Xming when X11 forwarding

I was beating my head against the wall trying to figure out why opening an application through X11 forwarding was taking so long. To open the simplest app like xclock was taking ~20 seconds for the ...
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0 votes
1 answer
209 views

Multi-hop X forwarding via ssh

Now I have such a need: Xshell——host A——host B When I ssh directly from Xshell to host B, I can open xclock When I ssh from Xshell to host A, and then connect to host B via host A, opening xclock will ...
1 vote
0 answers
451 views

LSOpenURLsWithRole() failed with error -10810 for compiled emacs via X11

I compiled emacs from source (using g++) on my work Mac (on which I do not have root access). Now, I wanted to make a test, whereby I open the compiled Emacs.app while being logged in via ssh. However,...
1 vote
1 answer
5k views

X11 forwarding with Windows Subsystem for Linux

I have been researching this for some time but I have not been able to find a solution. I do not seem to be able to run X11 applications remotely, on a server running WSL, and have them displayed on ...
2 votes
0 answers
114 views

macOS X11 forwarding error

I need to forward display one of software run from Linux computer (Debian 4.19) to my Mac computer (macOS 10.14.6 Mojave). I use XQuartz 2.7.11. The software 'freeze' once displayed and on terminal ...
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1 vote
1 answer
602 views

Gaming over Xpra

I have a local gigabit connection, way over what I need, but it can definitely support 1080p video and audio streaming easily. My problem comes to two things, first input, and second initialising GLX ...
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0 votes
1 answer
6k views

X11-forwarding not supported by server (CentOS 7)

i use MobaXterm SSH Client to use Terminal windows on a CentOS 7 Linux VM. When i logged in, following message displayed: X11-forwarding : ✘ (disabled or not supported by server) Doings: ...
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0 votes
1 answer
620 views

PuTTy Login timeout and X11 Forwarding

I'm using PuTTy and X11 forwarding (XMing) and I'm trying to simply log into a linux PC in my network, from which I want to launch graphical applications. I'm following this tutorial http://www.geo....
2 votes
0 answers
336 views

ssh X11 Forwarding will not display Mac OS X Apps on Raspberry PI

I'm trying to remotely run some apps from my Min Mac running Mojave and a raspberry pi 4. When I run ssh -Y from my raspberry pi to the mac I get and error stating X11 forwarding request failed on ...
1 vote
0 answers
293 views

How to run a Windowed JAR file over SSH without installing JRE and without root access on NetBsd?

First, I can use Java, but for what I want to achieve (building a database where othe only application supporting the format is in Java), I need 100Gb of RAM during 20 hours. I have access to a ...
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1 vote
0 answers
64 views

How to forbid fullscreen for an X-Forwarded window

I am running an application via SSH and X-Forwarding. The application runs automatically in fullscreen mode which is very unhandy. Is there any way to run the remote application in a windowed mode ...
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1 vote
0 answers
323 views

Strange slow down of TCP connection on X11 forward

I have a home computer H (Linux), a work computer W (Mac OS X), and a public server S (same Linux as H) with IP 11.22.33.44. As H and W are all behind NAT, I use autossh to connect them both to S and ...
-2 votes
1 answer
400 views

Weird that my remote ssh access open X window on the remote server but not on local client

I have setup my /etc/ssh/sshd_config on the server (Mac OS) as follows: X11Forwarding yes X11DisplayOffset 10 X11UseLocalhost no I can then from the client (another computer) ssh -X myaccount@...
0 votes
1 answer
3k views

Why does XWin Server from Cygwin not open?

I installed cygwins X Server to be able to X forward on Windows 10 as explained here. Now the installation completed and it finished without problems, but when I try to start the XWin Server as ...
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2 votes
0 answers
1k views

Running GUI app through Docker on a Mac

I'm trying to run a GUI app inside of docker (using python and displaying matplotlib plots). After searching around, it seems the way to start a docker container with X11 forwarding is with the ...
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12 votes
1 answer
5k views

X11 - Forwarding and efficiency

I have a graphically intensive application that needs to be forwarded over X11. I spent some time researching X11 and its (in)efficiency, including this great post: Why is X11 forwarding so ...
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0 votes
0 answers
399 views

SUDO_ASKPASS prompt is opening on remote machine

I am trying to rsync a directory from a remote machine to my laptop. The directory on the remote machine is not owned by the ssh user, hence I am trying to use sudo as explained here Both machines ...
1 vote
1 answer
68 views

What could slow down Windows increasingly as days go by?

I wanted to share this experience with all. I eventually fixed it, as explained in below own-answer. Lately, I noticed that some operations on my Windows 7 box were becoming slower and slower as days ...
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0 votes
1 answer
321 views

Find out X server window manager from X client

I login on a remote machine with ssh -X. My local machine runs a non-reparenting WM. The remote machine needs to know what WM the machine running the X server uses, in order to set or unset an ...
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1 vote
1 answer
68 views

X forwarding the other way around cross platforms?

Ok, so we've had X forwarding for quite some time. And it's a nice feature where you want to have some remote applications running remotely and the ui drawn locally. And I noticed that it's possible ...
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20 votes
3 answers
89k views

Setting up X11 forwarding over SSH on Windows 10 Subsystem for Linux?

I have a Raspberry Pi 3 Model B+ connected to my local network and I can SSH into it with no problems. This does cause some problems though as everything is done on the command line. What I would ...
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3 votes
1 answer
3k views

X11 forwarding with windows host and windows server

I know that there are a lot of X11 forwarding questions out there, but they never seem to address a Windows client to Windows server setup, so I am beginning to question if it is even possible. I ...
1 vote
0 answers
581 views

X11 virtual output with Nvidia card (and amd processor)

I have a Nvidia card and I'm trying to add a virtual screen, but no way to get this working my xrand says that VIRTUAL output doesnt exists root@workstation:/home/awill# xrandr --addmode VIRTUAL1 ...