Questions tagged [x11]

X11 is Version 11 of the X Window System, commonly used on Linux, BSD, and Unix systems to provide the lower level graphics, input, and window management API's that higher level desktops such as GNOME and KDE build upon.

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How can I prevent the warning No xauth data; using fake authentication data for X11 forwarding?

Every time I initiate an ssh connection from my Mac to a Linux (Debian) I do get this warning: No xauth data; using fake authentication data for X11 forwarding. This also happens for tools that are ...
sorin's user avatar
  • 8,056
59 votes
10 answers
243k views

how to use xauth to run graphical application via other user on linux

My regular user account is, let's say, user1. I created separate user2 for some x application that i would like to run while being logged into x as user1 but in a way that will prevent it from read/...
Phil's user avatar
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45 votes
8 answers
91k views

How to enable SSH X11 forwarding through additional server?

I have hosts A,B and C. From host A I can access through ssh only B. From B I can access C. I want to be able to run X11 programs on C and forward display to A. I tried this: A$ ssh -X B B$ ssh -X ...
lexsys's user avatar
  • 2,923
26 votes
6 answers
33k views

How do you swap the caps lock to control in xfce?

I used to have the caps lock and control swapped in GNOME, but when I upgraded to Ubuntu 9.04 I also changed my desktop environment to Xfce. I have the following line in my xorg.conf: Option ...
Marcel Levy's user avatar
22 votes
4 answers
37k views

How to configure D-Bus and SSH X-Forwarding to prevent SSH from hanging on exit?

I am attempting to run various Gnome applications via X11 Forwarding and SSH. Some applications will cause the 'dbus-launch' application to be spawned first. The problem is that dbus-launch doesn't ...
taftster's user avatar
  • 323
16 votes
2 answers
115k views

Can't Open Display - X11 Forwarding - Cent OS

Trying to access X11 my CentOS 6 x32 small Linode VPS through SSH Putty/Xming (enabled X11 forwarding on options). My windows machine is not the problem since it works with others CentOS Servers. ...
jacktrades's user avatar
14 votes
5 answers
52k views

SSH X11 not working

I have a home and work computer, the home computer has a static IP address. If I ssh from my work computer to my home computer, the ssh connection works but X11 applications are not displayed. In my ...
azat's user avatar
  • 491
13 votes
2 answers
9k views

Remote offscreen rendering

My research lab recently added a server that has a beefy NVIDIA graphics card, which we would like to use to do scientific computations. Since it isn't a workstation, we'll have to run our jobs ...
redmoskito's user avatar
11 votes
3 answers
4k views

How do I programmatically test if it's possible to connect to the X server specified in $DISPLAY

This is a bit of a middle-ground between programming and server-admin, but this seems ultimately the most relevant place for it. I'm looking for a way to determine if the variable '$DISPLAY' is ...
Kent Fredric's user avatar
10 votes
3 answers
9k views

SSH-forwarded X11 display from Linux to Mac lost after some time

I have a new and vexing problem with ssh forwarding my X11 connection when logging in from a Mac (10.7.2) to Linux (Ubuntu 8.04). I have no trouble using ssh -X to log in to the remote machine and ...
mklein9's user avatar
  • 331
10 votes
1 answer
12k views

xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory) [closed]

root@mazgalici:~# startx X.Org X Server 1.7.6 Release Date: 2010-03-17 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-28-server i686 Ubuntu Current Operating System: Linux ...
mazgalici's user avatar
  • 257
9 votes
2 answers
14k views

How to find out the currently active linux virtual terminal while connected via ssh?

The situation is as follows. I have a multiuser desktop machine with Debian Linux 6.0 and an ATI videocard with one monitor connected. I have root access to it. There can be several KDE sessions ...
vadipp's user avatar
  • 489
7 votes
11 answers
6k views

Is there a visual bell in Linux that works in X?

I know there is such a thing as a visual bell in Vim that makes the whole screen flash instead of beeping. Several terminal programs also have the same feature. I'm looking for a similar type of ...
Neil's user avatar
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7 votes
4 answers
5k views

Detach X11 app and reattach on another?

Given a setup of a headless Linux box running on a network, but having Xorg installed, and having various other machines on the network capable of using SSH with X-forwarding to connect to that box, ...
MidnightLightning's user avatar
7 votes
3 answers
18k views

How can I enable X11 forwarding to a Debian server box?

I want to connect to a server with SSH (a Debian installation in a VMware image). On that server I want to call gitk a repository viewer for git. What do I need to do to make this work?
Peter Stuifzand's user avatar
7 votes
4 answers
10k views

Karmic Koala (Ubuntu): enable remote x clients through TCP

It seems every version of Ubuntu has a different way to enable remote connections to the local X server. I'm asking this question, while I do my own research: how can I enable the X server listening ...
ΤΖΩΤΖΙΟΥ's user avatar
7 votes
5 answers
13k views

X11 forwarding from OSX to Linux

I've done some searching and found that it seems to be possible to forward X11 apps to a mac machine over ssh (i.e. ssh-ing into a linux box and launching an X11 app and having it show up on the mac's ...
6 votes
4 answers
8k views

Will a remote X-Windows session run faster if I install a better video card in the remote server?

I don't know much about X-Windows. Sometimes I run a remote X-windows session to an HP DL380 host from my MacBook Pro on the same LAN. I'm using X11 forwarding with the ssh -X option. The X-Windows ...
Nathan Farrington's user avatar
6 votes
3 answers
7k views

Setting up xpra for client use in OS X

I've been trying to get xpra to run on OS X for the last few days to connect to my Ubuntu server. Note that there's a GUI for it called shifter, but that (at least on OS X) is still far too buggy. ...
Jonathan's user avatar
  • 301
6 votes
3 answers
787 views

SSH - How to turn on X forwarding on normal connection

I know I can connect to a host and use window apps via running ssh -X <host>. But what if I'm already connected via normal ssh e.g., ssh <host>. Is there a way to turn X forwarding on ...
Greg_the_Ant's user avatar
6 votes
6 answers
38k views

Starting x11vnc remotely when X server is already running

I have a ubuntu linux machine that I have already logged into and X server is running (it is pass the login manager like gdm). I can access this machine through ssh. My goal is to start x11vnc on this ...
user avatar
6 votes
3 answers
17k views

How do I install a font in Linux so that it's usable by xterm?

I came across a question today asking for good Linux xterm fonts, and an answer suggests one called Terminus. I've been looking for a new terminal font for a while now, so I downloaded it (BTW, I'm ...
raldi's user avatar
  • 987
6 votes
4 answers
21k views

Sharing a linux desktop server for multiple users: remote desktop or virtualization?

We are a small web software company (~ 10 people). At present, every dev works on his local machine (some windows, some ubuntu) using a local apache. We have a samba share for shared files and central ...
Steffen's user avatar
  • 688
5 votes
1 answer
19k views

Are directories with mode `drwxrwxrwt` safe in /tmp on a *nix system?

drwxrwxrwt 2 root root 4096 Aug 20 2015 .font-unix drwxrwxrwt 2 root root 4096 Aug 20 2015 .ICE-unix -rw------- 1 root root 0 Aug 20 2015 ipt.err -rw------- 1 root ...
John's user avatar
  • 887
5 votes
2 answers
9k views

Getting Xvfb to start upon booting system in Ubuntu Maverick

I'm trying to get Xvfb to run when the system starts up on Ubuntu 10.10 (Maverick), but it's not working. In /etc/rc.local, I have the following: /root/start_xvfb.sh >> /var/log/start_xvfb....
user75894's user avatar
  • 153
5 votes
5 answers
2k views

NX Server lower-case d minimizes from OS X Client? [closed]

I've installed NX Server on Ubuntu Maverick Meerkat (10.10) using the instructions found here: https://help.ubuntu.com/community/FreeNX I have a problem using the default NX Client for OS X (10.6) ...
Jonathan's user avatar
  • 301
5 votes
2 answers
28k views

How do you configure X11 forwarding over SSH on AIX?

Here is what I've tried. I've edited /etc/ssh/sshd_config on the remote AIX system X11Forwarding yes X11DisplayOffset 10 X11UseLocalhost yes as well as set $DISPLAY DISPLAY=localhost:10.0 export ...
Stephen__T's user avatar
4 votes
4 answers
15k views

How can I start an X11 session on my headless Fedora 13 server?

I have a small home server using Fedora 13 as operating system. Since the upgrade to Fedora 13 I cannot start the X11 server. (I need it to use vnc) When I try to start the server, both the nouveau ...
Daniel Rikowski's user avatar
4 votes
2 answers
7k views

How do I start a X-application on remote server over ssh?

I need to start a X program on a remote server over ssh. The program should use the remote X-server (no x-forwarding required). What's the proper way to do this?
Eugene Yarmash's user avatar
4 votes
1 answer
5k views

How can I completely remove X-Windows from Fedora?

A while ago I installed my first Linux server using Fedora 10. I then upgraded to Fedora 11 and realized that I never use X-Windows on the machine, and during each update downloading a huge amount of ...
BinaryMisfit's user avatar
  • 1,593
4 votes
3 answers
2k views

Forward already-running X-window-system applications through SSH

I know that it is possible to forward the windows of an X-windows-system application to a client's desktop via SSH when you start the application in a SSH terminal session which has X-forwarding ...
aef's user avatar
  • 1,745
4 votes
1 answer
6k views

How to properly setup X forwarding on (Ubuntu) linux?

From my desktop, I can get to my wife's machine on the lan using: ssh -X [email protected]. Both systems are running the desktop flavour of Ubuntu 9.10-64bit. But here is the problem: When I try to run ...
Stéphane's user avatar
  • 456
4 votes
1 answer
6k views

SSH X11 Forwarding XInputExtension missing

When trying to open a GUI-program on a SSH-Session with X11-Forwarding (both client and server have X11Forwarding activated) I get this error: Xlib: extension "XInputExtension" missing on display ":...
markus's user avatar
  • 185
4 votes
1 answer
6k views

XRDP same user multiple session

I'm trying to make XRDP work with multiple sessions on my linux mint server. Right now, i can connect only if there are no other session running on the system (I had to disable autologin). I don't ...
MrRiky54's user avatar
4 votes
0 answers
2k views

ffmpeg with x11grab results in black screen in vlc playback

I've installed ffmpeg on an AWS instance and have been unsuccessfuly trying to record an X session, to which I've connected over x11rdp, with the client being Microsoft Remote Desktop. Here's the ...
zealoushacker's user avatar
3 votes
5 answers
24k views

X11 from ssh on Mac OSX to Linux server doesn't work --- Gtk-WARNING **: cannot open display

I installed a program wireshark on my remote linux box and I'm trying to run it with X11 from my mac computer using SSH. Here's my terminal... macosx$ echo $DISPLAY /tmp/launch-f4w6k6/:0 macosx$ ssh ...
user avatar
3 votes
3 answers
4k views

How to get a remote desktop / X11 with ubuntu 10.04 LTS from mac os x?

I am running Snow Leopard OS X 10.6 and I have X11 installed. I also have ubuntu 10.04 LTS running on a remote machine. I have root privileges. So far I haven't really installed anything besides the ...
cwd's user avatar
  • 2,783
3 votes
1 answer
3k views

Bind Xvfb on localhost rather than *

I am using Xvfb to run an a wine background application that needs a valid display. It appears that it binds to *:x11. For security reasons I would like to avoid opening any unnecessary ports. Is ...
Zulan's user avatar
  • 625
3 votes
1 answer
447 views

How to tell if an ssh session is using x forwarding (if it was run with -X or -Y)

For a given ssh session, is there a way to tell if it has x-forwarding enabled? I.e. you don't know if the session was established with ssh username@address or with ssh -X username@address.
DilithiumMatrix's user avatar
3 votes
1 answer
8k views

How do I create virtual sessions with x11vnc?

How to create virtual sessions with x11vnc?
Boris's user avatar
  • 151
3 votes
1 answer
2k views

X11 Forwarding: GUI appears in the remote server instead of client

I have two machines, PC1 and PC2. in PC1 I have Msys2 and Xming installed on Windows 7 while in the second machine PC2 I have Windows 10 with Ubuntu 18.04 on WSL (Windows Subsystem for Linux), Xming ...
s.ouchene's user avatar
  • 133
3 votes
5 answers
19k views

open terminal via ssh run firefox -> display not found

I want to run selenium tests on a Hudson slave. The slave (i.e. the machine) that will execute the selenium is a Ubuntu 10.04. Thus it has Gnome. Selenium needs a firefox to run. What Hudson does now ...
nebenmir's user avatar
  • 133
3 votes
3 answers
3k views

Allow X Client Display through TCP on Lucid

On Karmic, to allow other PCs to open and X-Window on a station, one had to edit /etc/gdm.conf and change DisallowTCP to false. That file no longer exists on Lucid. I tried changing an entry in /etc/...
user42336's user avatar
3 votes
3 answers
10k views

Start Xorg using init.d script

Do you have a clean/nice way to only start Xorg server under Ubuntu 9.04 and be able to start/stop it? Something like: # /etc/init.d/xorg start I have an application that doesn't use a window ...
Humber's user avatar
  • 451
3 votes
2 answers
7k views

Which is the best way, if possible, to maintain a remote X session that survives network outages, reboots etc

Even since I read the chapter about X in Unix Haters handbook I still thought that X was one of the things that make unix superior to Windows, since it makes it "possible" to work on machines remotely ...
ernelli's user avatar
  • 307
3 votes
2 answers
3k views

How can I close a port that appears to be orphaned by Xvfb?

I'm running Xvfb on a FC8 Amazon EC2 image. On occasion Xvfb will crash (unable at the moment to find out the reason for the crash), and after crashing the TCP port will appear to be orphaned. I'm ...
Jim Fiorato's user avatar
3 votes
1 answer
2k views

Xmingrc Configuration

With this config file silentexit Styles { emacs maximize } I'm getting the following error ... Release: 6.9.0.31 ... D:\programs\Xming\Xming.exe :0 -clipboard -multiwindow ...
gvkv's user avatar
  • 293
3 votes
1 answer
11k views

Install x windows on Centos not working

I'm trying to install x-windows on a remote CentOS 5.3 box. Here's what I did so far: $ yum groupinstall "X Window System" "GNOME Desktop Environment" $ echo PATH=$PATH:/etc/X11 $ xinit I had no ...
user avatar
3 votes
1 answer
3k views

Vagrant + VirtualBox + X11 on a headless server

I'm trying to run a VirtualBox Ubuntu VM via Vagrant on a headless server. The VM has ubuntu-desktop package installed, however when the machine boots up I can't open X applications. DISPLAY ...
Tomek's user avatar
  • 153
3 votes
4 answers
25k views

How to set up a desktop GUI with an Amazon EC2 instance? [closed]

I need to get familiar with some software that doesn't run on any of my home machines (windows/mac). So I decided to spin up an EC2 instance and try it there. However, getting EC2 to support a remote ...
slashdottir's user avatar