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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ssh proxycommand authentication [migrated]

I found this on the ssh man page: SSH_ASKPASS If ssh needs a passphrase, it will read the passphrase from the current terminal if it was run from a terminal. ...
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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 ...
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2answers
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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....
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1answer
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Xrandr error when accessing Debian VM over VNC

I have Debian 8 with XFCE running on vmware virtualization. If I work on the console of vSphere no problems. If I connect over VNC (thighVNC) using "my-hostname:1" I have some problems (I guess the ...
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1answer
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Shadowing with x0vncserver - No mouse pointer

I am working on a solution to shadow a user's X session in a multiuser desktop environment. If one wants to shadow a session they use my script. My script sets the proper XAUTHORITY environment ...
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1answer
26 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 ...
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X11 Forwarding using Attachmate Reflection

I've been using Putty for my SSH connections. I've been able to use XMing and X11 forwarding without a problem. I have to switch to Attachmate Reflection for work. I connect to the same machine and ...
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21 views

Set up remote login to remotely-rendered X-Window with OpenGL / GLX support

How to set up remote login (if possible it would be nice if login worked both from Linux and from MS Windows) to a remotely-rendered X-Window system (so from what I understand VirtualGL wouldn't work)?...
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1answer
113 views

Weak points of ssh tunnel and x11 server, hack investigation

So, today I've been hacked. It's very puzzling to me how it was done, so I'm looking for experienced people to show weak points in design of my systems. I have two servers. One is VPS with ...
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72 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 ...
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26 views

Run mysql-workbench remotely, no proxy/or tunnel

We are on AWS, with a MySql RDS. The RDS is set up so that only clients that are on the VPC can access it. (Just being VPN'd in is not good enough) So I assume that I could set up a tunnel,proxy, ...
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4answers
3k 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. ...
0
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1answer
33 views

How do diagnose laggy X11 applications running via ssh forwarding?

I am running an X11 application on a RHEL machine on my Windows system using Xming and X11 forwarding over SSH. The responsiveness seems terrible. A second between keystrokes and mouse clicks, etc. ...
2
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1answer
136 views

Disable ctrl+alt+f in X runtime

How do I disable ctrl+alt+f* shortcut that switches me between terminals? I would like to do that one time as I have an application that uses such shortcuts internally in Linux. I want to avoid ...
4
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8answers
2k 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 ...
0
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0answers
14 views

WindowManager: who is creating Documents/Video/Pictures/etc. in home directory

I had Ubuntu-14.04 installed in a minimum configuration, i.e. with no X Windows support. Later I added x-server packages for my card, and a lightweight WindowManager (I don't want KDE or GNOME), so I ...
11
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4answers
29k 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 ...
21
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6answers
32k 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 ...
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2answers
2k views

How to configure RHEL so users can access an app GUI remotely

I have an application installed in my RHEL6 box that has a GUI (AppGui.sh). My problem is that a few non-tech users would like to access this GUI remotely. I've tried several guides over the internet ...
1
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1answer
118 views

CentOS 6 - Remote GDM doesn't come up automatically

I have a bunch of systems running different subreleases of CentOS 6, at different update levels. All of these machines have been configured to allow remote graphical sessions via GDM by adding the ...
5
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3answers
5k 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 ...
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1answer
57 views

GUI on Amazon Linux AMI

I have Amazon Linux AMI 2015.09 and i need to use some GUI application on it. When i tried to install desktop environment i found out that there are no any X11 packages on repos. I tried to use ...
5
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5answers
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) ...
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1answer
539 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 ...
3
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4answers
11k 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 ...
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0answers
110 views

How do I view an X display on a remote host from OSX

I'm running an X server in a under xvfb in an Ubuntu 14.04 Virtualbox VM. The X display is used to run Firefox and Chrome for some Selenium tests. I want to be able to view the contents of this ...
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3answers
7k views

How to clear export DISPLAY=some ip address

I want to clear the export DISPLAY=My IP Adddress that I have given. It has botched up the x settings , now I just want it to be reset like normal. How to clear this export paramater. Simple set ...
5
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4answers
4k 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 ...
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3answers
3k views

latest openbox Yum package standalone install centos

i am trying to install openbox on centos. when i try yum install openbox i get no openbox package available nothing to do how can I install this standalone with the yum command?
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3answers
925 views

Forwarding X11 with one hop without X-server installed

problem I want to run X-applications remotely on a machine C from my client A. The only way to connect to this machine is by using machine B (firewall) as a hop: A --> B --> C So far, simple ssh ...
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1answer
127 views

Using xhost, display and startx - confused

I have a client A (192.168.1.1)(vncviewer) accessing Server B (192.168.2.1) (RHEL6) to run a installer. The installation pre-requisite is to set the xhost and DISPLAY properly. Q1) Please correct me ...
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1answer
1k views

I'm trying to setup Xvfb to run an GUI app on a remote server with no display

I have a 3rd party java app that I need to run on a remote server. Unfortunately, the app is designed for the desktop and assumes a GUI is available. The thing is I would like to leave this app ...
2
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1answer
1k views

How do I get one monitor in landscape and one monitor in portrait mode on Ubuntu 9.04? [closed]

I'm running Ubuntu 9.04 (Jaunty), and I have a nVidia 8600GTS graphics card. I'm trying to get one monitor to work in portrait mode, and the other one in landscape mode. I know how to do this under ...
9
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2answers
57k 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. ...
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0answers
888 views

Have GPU Passthrough working both Windows and Linux guests but libGL SDL error linux couldn't find matching glx visual NX x2go freenx

I have GPU Pass-through working with KVM qemu with both Windows 7 and CentOS guest but with Windows I can easily RDP with Remote Desktop mstsc and even run 3D accelerated apps that will make use of ...
4
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2answers
5k 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 ...
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2answers
202 views

Restrict user changing xscreensaver settings

I would like to know any solutions people came up with restricting a user from changing a system wide configuration of xscreensaver. Part of my job is managing systems which have a requirement that ...
12
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3answers
11k 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 ...
3
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3answers
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/...
21
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3answers
38k views

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 ...
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2answers
13k views

SSH X11 forwarding does not work. Why?

This is a debugging question. When you ask for clarification please make sure it is not already covered below. I have 4 machines: Z, A, N, and M. To get to A you have to log into Z first. To get to ...
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2answers
450 views

System missing xorg.conf

I'm having quite a bit of difficulty installing X server on a VM running Debian Wheezy. I basically am just looking to be able to SSH to the box using X11 forwarding. After installing xserver ...
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2answers
264 views

Using X11 apps on VPS server, feasible in terms of resources? [closed]

I wanted to run an idea by the experts here. I have a VPS (Debian 7.7, 1GB RAM), which is purely a web server (hosts some important stuff), no desktop installed. But there are some graphical tools I ...
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1answer
207 views

How can I start X server ons boot?

In most case I login to the server as a root and start the X server manually by calling the startx function. After the I can use X11 forwarding. However I would like to know how can I start X11 as a ...
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3answers
2k views

Unable to install X11 server on RHEL6

I am tring to install X11 server on a RHEL6 server yum groupinstall "X Window System" "Desktop" "Fonts" but I am getting the following error: Error Downloading Packages: libart_lgpl-2.3.20-5.1....
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3answers
236 views

X server for Windows [closed]

I'm looking to run Cygwin xterm on my machine. For this I need an X server, which one would you recommend? It's important that it won't leak memory too much, and that it would be fast enough to allow ...
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2answers
480 views

Why cron job is not able to open X display connection [closed]

I have a java app rendering some sprites using LWJGL and OpenGL. It works fine until I move it to remote virtual machine with no phisical graphic card, Mesa 3d with related stuff is used to emulate it ...
0
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2answers
146 views

Logging in to X-Windows with advanced .profile

I have just upgraded one of my systems to Precise Pangolin (Ubuntu 12.04). (A long-overdue upgrade from Lucid. Youch!) When I try to login to X Windows, I get a ~/.xsession-errors file with these ...
5
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3answers
9k 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 ...
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2answers
3k views

Problem opening XWindows programs with xming and SSH Secure Shell

I've installed SSH Secure Shell and xming on my laptop running Windows 7 (64-bit). I'm having trouble starting X Windows applications from the SSH console. I've been able to do it in the past. I've ...