OpenSUSE :: SSH / X11 On 11.3 - Error: Can't Open Display: Localhost:10.0
Sep 25, 2010
I was trying to remotely log in to my desktop which uses 11.3 from my laptop via ssh. For some reason I get an empty field for the command echo $DISPLAY. and as a result an xclock command results in error: can't open display. I tried to set it to localhost:10.0 and I get: Error: Can't open display: localhost:10.0
I've tried :0.0 and I get: Invalid MIT-MAGIC-COOKIE-1 keyError: Can't open display: :0.0 ssh used to work about a week ago before I performed various security updates. I was wondering what' the solution to this. I checked the /etc/ssh/sshd_config file and ssh_config file both have X11 forwarding on. Can anyone with more experience out there give me any ideas?
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Jun 25, 2010
FreeNX server is SUSE 11.2 /(i586)
Cliente is windows 7 (64)
NX> 148 Server capacity: not reached for user: usb
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Apr 6, 2010
When I attempt to use Putty for xterm (to run DBCA for Oracle) I check x11 and put my IP Address in the Display field of putty. However, when I then try to execute ./dbca I receive the following:
Xlib: connection to "localhost:10.0" refused by server
Xlib: PuTTY X11 proxy: wrong authentication protocol attempted
Error: Can't open display: localhost:10.0
I notice the following when logging in to the server as well.
Last login: Fri Mar 19 13:51:19 2010 from 10.47.48.33 /usr/X11R6/bin/xauth: error in locking authority file /home/oracle/.Xauthority. These are the same steps I take successfully on all the servers. The above file exists on the servers I can initiate the GUI, but not on <server1>.
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Dec 1, 2010
Im using the Redhat 5, when m trying to connect from X-start it showing error:
Can't open display: localhost:0.0
Where as /etc/ssh/sshd_config settings are correct
Also ssh is running
$DISPLAY is set to localhost
still it is not started any x-service
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Mar 31, 2011
I'm trying to connect to my linux server but I'm having some major problems. The server had OEL 5 installed and my local pc is running Windows XP. I'm using PuTTy to connect to the server with Xming running on my loacl machine. I login as root and run the following command - export DISPLAY={ipaddress}:0.0I then run xclock and get the following error - Xlib: connection to "{ipaddress}:0.0" refused by serverXlib: No protocol specifiedError: Can't open display: {ipaddress}:0.0The strange thing is that on my bosses pc (who has got almost the exact same setup ie. PuTTy & Xming) is works perfectly.
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Jul 5, 2011
I'm SSH'ed in to my Ubuntu 11.04 machine and trying to take a screen shot of a virtual display where I'm running (hopefully) Firefox. I get the error
Code:
selenium@selenium:~$ xwd -display localhost:15.0 -out ~/desk.xwd -root
xwd: unable to open display 'localhost:15.0'
I know that I have displayed the right display variable because in an earlier script that runs at system bootup I have
Code:
export DISPLAY=localhost:15.0
/usr/bin/Xvfb :15 -ac -screen 0 1024x768x16 &
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Jun 22, 2011
I recently installed opensuse 11.4 on a remote server. It has GNOME installed as a desktop. The problem I am experiencing is that when logged in through VNC, most of the GUI apps are not functioning, especially ones that require root privs. Example: The Add/Create users context does not function. After you supply root pw, nothing happens. If you launch it from a terminal, you see this:
jjmuw@g01:~> xdg-su -c /sbin/yast2 users
Xlib: extension "RANDR" missing on display "::1:1.0".
No protocol specified
No protocol specified
[code]....
(y2base:4872): Gtk-WARNING **: cannot open display: ::1:1.0
Followed by a hang. This is also affecting things like the Xen configuration contexts (creating/managing VMs).
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May 4, 2010
Gnome Forum have told me that changing the appearance of gdm I run: sudo -u gdm dbus-launch gnome-appearance-properties but I get this error: (Gnome-properties-Appearance: 18 047): Gtk-WARNING **: can not open display:
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Jun 28, 2011
I have the following scenario that doesn't seem to work normally. I have a windows 7 pc from which I am using putty to connect to my other linux servers (all running redhat 5 and 6). So here is the scenario that works and one that does not work. And I'm trying to figure out the one that does not work. Scenario that works:
From windows 7 (putty) I ssh into Linux_Server_1.
echo $DISPLAY
localhost:10.0
I run xclock and I see it pop up on my windows 7 pc. I am using xming on windows 7 to help me populate the display from linux to windows. One that does not work:
From windows 7 (putty) I ssh into Linux_Server_1. Then from Linux_Server_1 I ssh into Linux_Server_2.
echo $DISPLAY
<no output>
I try to setup $DISPLAY with localhost:10.0 or 0.0 or even my windows 7 pc ip address:0.0 ....etc Then when I try to run xclock I doesn't work.
I get these error messages: Error: Can't open display: <ip of display>
Also as a side note all our Linux servers are sitting on one subnet. My pc is sitting on another subnet. I use vpn to connect to the subnet where the servers sit from my pc.
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Apr 15, 2010
I have a problem with one of my new OpenSuse installation. I install ntop on this machine so the port 3000 become open, but when i want to use it on a other pc, it cannot see the open port. I really don't understand why i cannot access this port.
I disabled firewall to make sure everything pass.
Here my ntop on my localhost
Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds
Here my ntop from another host
Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds
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Feb 18, 2011
We have a digital signage appliance built on SUSE 11.3 with a LAMP server that uses the flashplayer application to play a .swf file from localhost. It is a AOpen GP7A mini pc that has the nVidia drivers loaded. We have lots of customers that have been running the exact same system for over 6 months (we image the drive for each sale).
For some reason, my last customer is seeing the following problem shown below, and this linux configuration is way over my head. Everything else is working (local LAMP server is working, communicating with our production servers to get information works, etc). I have verified that it is screen 0 that is running (at least it shows with Ctrl-Alt-F7). I thought that it may have occurred because of updating the software with zypper up. I had the customer rebuild from the image being careful not to upgrade the software. The result was the same. The pc is a newer version compared to my bench pc, but there are multiple other customers running that same version just fine. So I am not sure if it is
The command is issued by a php script that is run in a root cron job. As I said, it works great on all other customer pc's including my bench system. I also tried to execute the command on a ssh terminal as the root user with the same result. I also upgraded my bench pc and it still worked properly.
The command being executed is sudo env DISPLAY=:0 XAUTHORITY=/home/svision/.Xauthority flashplayer http://localhost/flash/sign.swf &
the result (when run in terminal) is: No protocol specified (flashplayer:15077): Gtk-WARNING **: cannot open display: :0
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Aug 14, 2010
i have just installed a redhat linux entprise 5 on my machine. I am trying to install a software and when i run the #install.ksf , my installation gets aborted and my install.log file shows this,
Error: Can't open display !
Environment variable 'DISPLAY' must be defined.
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Nov 22, 2010
i just downloaded Nethack from [URl], and moved the extracted files to /usr/games. Then i changed the permissions in /usr/games/lib/nethackdir so i could access the lib files.
Nethacks runs in X, and it runs in terminal when im root. But for some strange reason it does not run in CLI when im not root, i get the message "Error: Can't open display:".
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Jan 14, 2010
When trying to run X apps from terminal command line I getCannot open X display `:0.0'error.I tried export DISPLAY=0.0What do I need to do to permently fix this problem?
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Apr 16, 2011
I have a fresh install of OpenSUSE 11.4 64bit and I have installed the AMD Display drivers for my Radeon HD 5970. Everything seems to be working quite well. I have a multiple monitor setup (1280x1024 monitor and a 1920x1080 monitor).
I have my primary display set to 1920x1080, however when I try to enable the second display, I get a CRTC error that the display is over the maximum (1920x1920). If I enable both monitors at lower resolutions, there is no problem.
I have done a fair bit of reading and have been unable to determine where this maximum is set, or how to change it. I'd like to be able to run both monitors at their native resolutions.
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Feb 17, 2010
I have installed RHEL 4.6. But X server is not running. Wen i executed xclock Error: Can't open display: hostnmae:0.0
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Oct 25, 2010
/usr/bin/xterm Xt error: Can't open display: %s
I tried to connect to remote server ,which is installed Centos 5.4 x86, through Xmanager on windows 7, and got this error.
Quote:
/usr/bin/xterm Xt error: Can't open display: %s
At the remote server, I turned on firewall and after this I got the above-mentioned error message.
I do this accrding to instruction on remote server.
Quote:
2. Firewall (TCP/UDP Ports) Configuration
Open UDP port 177 from the PC to the remote host direction.
Open incoming TCP ports 6000~6010 from the remote host to your PC.
After adding these ports "/etc/sysconfig/iptable" as the enoder mentioned, /etc/init.d/iptables restart
3. Reboot the remote host and start Xmanager <- I could not restart remote server.
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Dec 26, 2010
I have this problem. Whenever I issue command below,
Code:
ssh -X user@hostA
xclock
[code]....
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Aug 20, 2010
I've just installed xterm, ant trying to run it from my windows machine using ssh. I have X11Forwarding yes on /etc/ssh/sshd_config when I use, MobaXterm, np, I can use xterm after I log ssh -X xxx
but when I use Cygwin, and do ssh -X xxx, and then xterm, I have: xterm XT error : Can't open display: xterm: Display is not set
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Sep 8, 2010
So I just installed 32-bit Squeeze. I've done exactly two things since booting into the first install: pt-get install gtk+2.0, and ./firefox, so unless gtk did something, this might be an easily fixable problem with Debian itself. After installing gtk and trying to run firefox via command line, it tells me
Code: Error: cannot open display: :0 I googled a bit and couldn't come up with a solid solution, but the problem seems to be around other places. Any idea how to fix this?
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Feb 27, 2011
I recently installed OpenSUSE 11.3 amd64 from DVD on a new HP 625 Laptop. Whenever networking is activated, application startup slows down significantly. When I deactivate networking in the nm-applet application startup is fine. I am using the broadcom-wl package from packman for the broadcom wireless card (BCM4313)
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May 13, 2011
For awhile I have had this issue with the command line and every time I try to complete any command that requires GTK graphics, It always returns the error "Error: cannot open display: 0:" The "EXPORT display" command that I normally use to fix this issue is not working. The only issue that I can think might be the cause for this could be my upgrade to natty (which was in fact a clean installation), or when I edited plymouth so that the startup and shutdown animations would match my laptop's native resolution (by the way I would also appreciate it if I could do the same with the startup animation, only the shutdown really works). If anybody know how I could resolve this issue I would greatly appreciate it. Oh and for specifics on my machine, I am using an ASUS N82 with an NVIDIA GEFORCE GT335M graphics card, running Ubuntu 11.04.
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Sep 1, 2011
I am running hummingbird exceed on Workstation with an ip address of a.b.c.d, and connecting to a sun machine with IP address x.y.z.w running Solaris with XDMCP. From the sun machine, we commonly telnet to other sun and linux machines and run X applications.
We have just installed ubuntu 10.04, and I can telnet into that machine no problem.
However, running xterm on the ubuntu machine fails:
xterm Xt error: cannot open display a.b.c.d:0.0
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May 5, 2011
Well after messing with compiz Opacity I managed to make all panels and windows transparent. Only thing I see is desktop background and icons. Tried ctrl+although+f1 and running gconftool-2 --recursive-unset /apps/compiz
Then a reboot. Same issue. Next ran metacity --replace I get: Windows manager error: Unable to open X display
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Mar 31, 2011
I also had ever tried all methods they mentioned, but my problem is still there. I am using a MAC OS X 10.6 ssh a remote redhat server. I hope to see X of redhat on my own MAC. Below is what I've done: 'MAC_ip' stands for my mac; 'redhat_ip' stands for redhat server.
1) ssh to redhat server
2) change to root
3) type command: DISPLAY=MAC_ip:0.0
4) type command: export
5) Back to MAC
6) change to root
7) type command: xhost +Redhat_ip
8) vim /etc/ssh_config, add X11Forwarding yes
9) Back to redhat, type: xclock
I got below message: Error: Can't open display: MAC_ip:0.0 I also tried some methods to login as others suggested:
[Code]....
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Jan 23, 2010
I wrote a simple code using Open Inventor(OpenGL) classes to print a Sphere in a .png file.I tested it on Windows and it worked well.But when I run it on Fedora 10, I got the following error with no output .png file:
Coin error in glxglue_init(): Couldn't open NULL display. Coin warning in SoOffscreenRenderer::renderFromBase(): Could not set up an offscreen OpenGL context.
Segmentation fault
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Nov 25, 2010
I installed WordPress 3.x on my localhost/Apache server, but I can neither install plugins nor update anything.This happens with both the stable WP3.0 version and the 3.1 beta. When I try to search the Plugin Directory from the WP dashboard, I get this message: An Unexpected HTTP Error occurred during the API request.When I run an update, I get a page asking for the login credentials for the ftp user ("To perform the requested action, WordPress needs to access your web server. Please enter your FTP credentials to proceed. If you do not remember your credentials, you should contact your web host."). Since I'm part of the 'ftp' group on the system, I enter my system login information, click Proceed -- and get a blank page that does nothing.
I've gone to YaST, and I see that the system ftp user has a 6-character password (which may or may not be mine). I'm afraid to change it and risk screwing up other ftp-related functions. I'm running openSUSE 11.3, and am obsessive about updating. I will note that I have an old 2WIRE router that often requires me (including Zypper repos) to enter IP addresses instead of DNS-based URLs to successfully download stuff. Not sure if this is related, but just in case...
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May 29, 2011
For example, the gparted application menu item doesn't work; using it means that there is almost no filesystem support. The only way to get it to work is to open a terminal, run 'su -', and then open it from there.As another example, I tried creating a nautilus script to open files as root with a command like this:
Code:
for uri in $NAUTILUS_SCRIPT_SELECTED_URIS; do
gnomesu -c "gnome-open '$uri'"
done
When I try using it, it just fails. Typing out the command in the terminal gives this (tested on a text file):
Code:
No protocol specified
(gedit:13672): Gtk-WARNING **: cannot open display: :0
I'm pretty sure the problem is that it's granting privileges, but not using the full root environment, or something along those lines.
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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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Nov 9, 2010
I think I screwed up my Administrative username in mysql.
mysql -u root mysql
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
Can I just copy all the files in /var/lib/mysql >>reinstall MySQL >> copy all the old folders into the new /var/lib/mysql ( while MySql is off)
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