Ubuntu :: Lucid - Cannot Display Xclock On Remote Machine

Jul 23, 2010

I'm having trouble displaying Xwindows programs on a remote machine. If I run "ssh -X newmachine" and I login and then run a program like xclock, I get the error message:
Error: Can't open display: localhost:10.0

If I run the same command to an anothermachine which is running Ubuntu 8.04 it works fine and xclock displays on my localmachine. If I run the command "echo $DISPLAY" on newmachine, I see:

Also, I have checked and xauth is installed on newmachine. What setting I have to change on Ubuntu 10.04 to allow remote display of Xwindows programs?

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Ubuntu :: 10.04 Laptop Can't Display Remote Xclock

Jul 27, 2010

Hostname: Borg
OS: Lucid Lynx
Kernel: 2.6.32-24


1. borg > xhost +
2. borg > ssh <anyuser>@<anyhost>
3. anyhost > export DISPLAY:<borg's IP>:0.0
4. xclock

NOTHING HAPPENS!!!! Any ideas? Here is what I have tried thus far.


1. gdmsetup - looked for security tab, doesn't exist

2. installed gdm2setup - still not there

3. looked for gdm.conf - not there

4. when doing ps -ef|grep X - there is a -nolisten tcp "could this be culprit" hmm not sure

5. modified /etc/ssh/ssh_config to Forward X

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Ubuntu :: SSH Display On Remote Machine?

Jul 10, 2011

I have SSH -X working fine, displaying stuff that's running on the remote machine on my local machine. But how do I display on the remote machine? I did this many years ago on unix and seem to recall that this was either default or a simple case of setting DISPLAY....

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Red Hat :: Xclock Error: Can't Open Display: <unknown Ip>:0.0?

Dec 26, 2010

I have this problem. Whenever I issue command below,

ssh -X user@hostA


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General :: Display The Source Machine During A Remote X Session In The Title Bar?

Aug 8, 2011

In the past, when I open a gvim session on a remote machine, the title bar of gvim would show the machine name in brackets. I am not sure if this was done by the remote gvim itself, or the local window manager. In the past I have used gnome2, although I am currently using unity (and finding it rather frustrating). Is there some setting I can change to always force remote windows to display the source machine?

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Software :: Xclock Running From Start Script Doesn't Display Correctly?

Feb 21, 2011

I recently dist-upgraded from Debian 5 to 6 (squeeze). Since then, the xclock I run from my window manager's start script isn't displaying correctly (it displays only a "0"). The thing is, if I run the same command in my start script in my terminal, it works just fine, as it has always done...

I use this rather "old" X applications because I like my programs simple/not buggy/fast, and it's resulting a rather annoying problem (being that apparently nobody else has it...).
All other programs in my start script (gnome-terminal, emacs, xmodmap, etc) are working with no problems whatsoever.

My window manager: sawfish

Command to run xclock in my start script:

xclock -digital -brief -geometry -0+0
Attached picture:
Top: xclock initialized by start script
Bottom: xclock initialized by terminal

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General :: Error - Can't Open Display - For Xclock Or Gvim On Kubuntu Root Shell Konsole 1.6.6

Oct 8, 2009

I use kubuntu (8.04) which does not have a root account.

[sudo] password for ts:

However, starting xclock or gvim on root shell on konsole has the "Can't open display" error appears.

Error: Can't open display: localhost:0.0

Press ENTER or type command to continue

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General :: Transfer Files On A Machine With Ftp / Sftp And Scp Disabled Onto A Remote Machine?

Nov 30, 2010

How do you transfer files on a Linux machine with ftp,sftp and scp disabled onto a remote machine

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Software :: Put Ssh Into Remote Machine - Error Write Failed: Broken Pipe (After Logged Into That Machine)

Jul 18, 2011

Whenever I put ssh into remote machine am getting the following messages. Write Failed: Broken Pipe (After logged into that machine ) Read Socket Failed: Connection reset by peer (While trying to log in ) Also known_hosts file is changed frequently.

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Software :: Redirecting Remote Machine Audio To Local Machine?

Dec 26, 2009

Is there any way to redirect a remote Linux machine mplayer output audio to local one?

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General :: Cannot Remote Display To (ubuntu 9.04) Box?

Mar 12, 2010

I am struggling to figure out why I cannot display GUI applications from one of the Sun Solaris 10 servers (named espresso) on the network over to my local Linux workstation (beluga). Seems to work perfectly fine when I use my other Solaris 8 (stoli) box for display.Here is what I do, the part that works fine:

stoli: xhost+
stoli: rlogin espresso
espresso: setenv DISPLAY stoli:0.0
espresso: oclock

Now trying the same thing over to linux box, beluga, and it fails with message "Error: Can't open display: beluga:0.0":

beluga: xhost+
beluga: rlogin espresso
espresso: setenv DISPLAY beluga:0.0

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Ubuntu :: Ssh And Run Command On Remote Machine?

Jan 8, 2010

I have made a shortcut on desktop and want that one to ssh from machineA to machineB and run a command.I have fixed the .pub file so I can ssh without password.This is what I want to doPHP Code:ssh -X user@machineB && start-the-program ..but it seems to not run the command after "&&".How can I do to make it automaticly run a command after it has connected over ssh?

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Ubuntu :: Control TTY On Remote Machine Via SSH

Jun 19, 2011

I'm wondering if it's possible to control a TTY on a remote machine via SSH. I'm aware of ssh's -t option, but it doesn't seem to do what I want. Basically, I'm thinking in terms of VNC-like operation, where the remote user and local user see the same thing, only instead of a GUI, they both see TTY1 (or 2, or etc). Is that doable, or no?

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Ubuntu Networking :: Ssh Back From A Remote Machine?

Nov 19, 2010

I can ssh from my local machine (Ubuntu 10.4 64bit) to a remote Linux server. When I try to copy a file back to my machine (or just ssh to my machine) I get the following error - "port 22: No route to host".ifconfig on my local machine gives one ip address for "lo Link encap:Local Loopback" and one for "wlan0 Link encap:Ethernet"; I tried ssh both.I work on a laptop with a wireless router (which is also the modem)

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Ubuntu :: Remote Machine Should Be Third Monitor In Xrandr?

Jan 10, 2011

I ran the following commands on my ubuntu desktop :

xrandr --output VGA-0 --mode 1680x1050
xrandr --output VGA-1 --mode 1680x1050
xrandr --output VGA-1 --left-of VGA-0

This gives me dual head. I have a second machine on the same 100mbps network that is also running Ubuntu. I want to run X on that machine and have it's X session as a monitor in xrandr, so I would add something like this :xrandr --output REMOTE-1 --right-of VGA-1Is this possible?

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Ubuntu :: Lucid 10.04 - Bad Video Graphics Display

May 17, 2010

I just installed 10.04 Lucid Lynx and have a serious graphics problem. I've attached a picture to show the problem.
Some Background:
Pentium 4 3.06GHz
ATI Radeon 9600

I installed via liveUSB but had to choose the "nomodeset" option by pressing F6. Otherwise after the Ubuntu boot screen the graphics went like that in the attached image. The installation went fine (took less than 15 minutes!) but after the reboot the graphics problem returned. I can't see anything and the system is useless this way. I can't post up any logs (I'm typing this from the liveUSB).

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Ubuntu :: Lucid Doesn't Display A Login Box?

Jun 14, 2010

When I booted my computer this morning (lucid lynx 10.04, 2.6.32-21) I found that it showed me a login box, much like normal, but that the text field where I type my username was about a pixel high and disabled. So I couldn't type my username, or password, and had to resort to a tty and links to get here and ask someone for help. I can't find anything on google that looks like people having the same issue and frankly I'm not even sure what is wrong.

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Ubuntu :: Thunderbird 3.0.4 Cannot Display HTML In Lucid

Jun 28, 2010

For some reason I am unable to get Thunderbird 3.0.4 to display html in a message. I can see the html code when I chose to "view source", but the message itself is totally blank. I am using Ubuntu Lucid.

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Ubuntu Networking :: New Install Of Lucid Not Seeing Other Machine

Jan 5, 2011

Does anyone know of a decent Ubuntu networking tutorial I can work through? I'm struggling to get a new install of Lucid to see anything on my home network.

The current state of play is:
I can browse the internet and the router.
I have several laptops running Ubuntu and a NAS drive but the HP desktop PC with the new Lucid installation can't see them.
The NAS and the HP are wired to the router.
I installed Lucid because I never got Maverick to see the network either.
Lucid on my laptop can see the NAS drive over wireless.
I can see the NAS drive but not the other machines if I boot the HP into WinXP.

I'm not much good at XP networking either so perhaps that needs configuring too. A decent tutorial would be useful, especially one that doesn't assume I have Windows machines on the network as we rarely use Windows now.

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Ubuntu :: Enable Remote Desktop By Command Line In 10.4 Lucid

Jun 26, 2010

how to enable remote desktop by command line in 10.4 lucid? The command sudo gconftool-2 -s -t bool/desktop /gnome/remote_access/enabled true doesn't work, because when I open /system/pref/remote desktop, it is still not activated.

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Ubuntu Installation :: Remote X Applications Don't Work After Upgrade To Lucid

Oct 2, 2010

I upgraded my Ubuntu 8.04 (Hardy) system to 10.04 (Lucid) and my remote X applications no longer work. The problem seems to pertain to Xauthority. When the remote X client attempts to access the X server on Lucid it receives an error indicating that there is no matching MIT Magic Cookie (hereafter cookie) for the display. It turns out that this is true. I'm of the belief that the subject cookie should be generated for my display when the X session is started on Lucid.I thought this was being done by GDM when I logged on. However, $HOME/.Xauthority contains only 1 cookie which is for the display identified as "Pluto/Unix:0" (Pluto is the name of the host). I'm expecting a cookie for a display identified as "Pluto.my.test:0" where "my.test" is the domain name for my network.

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Ubuntu :: Remote Desktop Launcher On Lucid Login Screen ?

Jan 20, 2011

Put an remote desktop launcher on the lucid login screen.

I'm running a ubuntu lab, and adding an rdesktop launcer to the login screen would really make login much easier for the users, so they don't have to login twice. First into lucid and then into windows with rdesktop.

I'v already made the rdesktop launcher on the lucid desktop, but where (if possible) do I put it so it will also be avalible in the lucid login screen ?

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Networking :: VSFTPD 2.2.2 On Ubuntu Lucid Denying Remote Access

Apr 28, 2011

My apologies if this is the wrong board for this thread, but seeing how the issue appears to be related to where I'm connecting from, I thought this would be the place to look.To start off, I've been running VSFTPD on the box for a good year or so now. Until recently, everything seemed to be working fine, but during the past few days I've run into issues with it and have been having trouble pin-pointing the problem. I've gone as far as reinstalling VSFTPD and rechecking every line in the conf file to no avail.The issue presents itself when I try to login to the FTP server remotely. The moment I put my user name in, I get disconnected without any error message, simply connection closed. That isn't the case when I'm connecting locally from the server.If I try to connect remotely using eth0 (internal network), it works fine again... but if I try eth1 (external network)... it fails. I'm thinking it might be related to PAM, but so far have been unable to figure out what I need to change in the configuration there. Additionally, the PAM log file doesn't show any activity if I'm connecting through eth1, but displays it if connecting through eth0.

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Ubuntu Servers :: Cannot Shut Down Remote Machine / Server?

Mar 21, 2010

I am running a local webserver mainly for development. I have everything set up. The issue I currently have is that I cannot shut down the machine from the command line. I can issue the command but the machine remains on. I also cannot get to the desktop via VNC.The reason for this, is that there is no monitor attached so Ubuntu says that it is trying to run in Low Graphics Mode. I found this out as I plugged the monitor in to my server.So question is, how do I get around this? How can I set up Ubuntu to get past this, or do I need to install Ubuntu Server?

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Ubuntu Servers :: Add A Printer On Remote Windows Machine?

Sep 12, 2010

I set up a print server with a USB printer attached. I can remotely bring up CUPS and print a test page, but I would like to be able to add a printer in windows like I normally would. Add printer, network work printer and so on, but I am not sure how to implement this on Ubuntu server. Do I need to use IPP or do I have to share it out using Samba? Oh, my server does not have a graphical desktop, it is strictly console based.

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Ubuntu :: Setting Up Remote Administration On A Distant Machine?

Oct 30, 2010

I'm try to assess the viability of of setting up remote administration on a distant machine. Just for background, the computer I wish to administer is located on a boat in Southern Ireland while I'm in SE England. Sadly, the the boat operator is a far better fisherman than computer user and every now and then some rogue sensor numbers get captured by the boat's computer and these eventually need operator intervention. Anyone who has tried to talk a non PC literate user through correction routines over a dodgy mobile telephone while the said user is trying to operate mouse/keyboard in an Atlantic swell will appreciate the problem.

However, there is a fairly good mobile phone broadband signal available in the area so I was wondering if there was anyway I could set up a point to point connection with the boat over this medium. That would allow me to administer the machine remotely.

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Ubuntu :: Emacs In Remote Machine In Term Mode?

Jun 15, 2011

I ssh connect with a remote machine and have to use emacs.But emacs run only in term-mode. does anyone have a solution how can i run emacs in graph mode in the remote machine

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Ubuntu :: Installed The Upgrade Lucid And Display Does Not Turn Off?

May 4, 2010

I just did the upgrade and I want to turn off the display after 30 minutes. I check that selection but the display does not turn off after 30 minutes. It is still on. I enabled this setting through the power management. The screen saver is on, go to blank display but the monitor does not turn off.

On Windows, dual boot on the same machine, the monitor does display off. I don't know if this is part of the problem or not, but when I go to "System -> Preferences", there are two different "Screensaver" options.

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Ubuntu :: Gnome-RDP Does Display Group Names In Lucid

May 10, 2010

I recently updated to Ubuntu Lucid Lynx from Karmic (fresh install though). All of the packages I used in Karmic seem to work nicely in Lucid, with one exception gnome-rdp. I'm a sysadmin in several windows environments so as you can imagine I love the session storage and grouping features. Unfortunately gnome-rdp is not displaying the group names. it stores my session and creates the group structure just fine, it just doesn't show me the group names in the app or the right-click menu on the top panel icon. My gut says it has something to do with the new Lucid theme, but I like the new theme. Does anyone know of a config file I can edit, or something I can do to disable theme integration, just for gnome-rdp?

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Ubuntu :: Lucid: Set Corner For Expo Display Of Workspaces

Jun 19, 2010

I have a lucid stock install of Ubuntu, and the visual effects are set to Normal.

The Windows-E shortcut brings up the 'expo' display of all four workspaces in a line.

Is there a way of making (say) the top right corner of the screen sensitive so that moving the mouse there triggers the display of all workspaces?

Can this be done with 'stock' installed software?

gconf-editor has a promising looking key called 'expo_edge' at


but that might do something different.

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