OpenSUSE Network :: FreeNX Windows Error - Can't Open Display - Localhost:10.0

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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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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SUSE :: Error: Can't Open Display: Localhost:10.0

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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OpenSUSE Network :: Can't Get FreeNX With Nomachine Client To Work - "Cannot Initialize Display Service"

Mar 1, 2011

I have been spending hours and hours trying to find a "Remote installation for Dummies" ....kind of step-by-step approach. But after several evenings googling and reading. This is how far I got: I have installed FeeNX on my server and after sudo nxserver -- status I get a reply like this:

NX> 100 NXSERVER - Version 2.1.0-72 OS (GPL. using backend: 3.4.0)
NX> 110 NX Server is running
NX> 999 Bye

so to me that looks like the server process is running. I also installed the windows Nomachine on my laptop and hooked it all up in my local network (so no routers whatsoever) I disabled the firewalls on both my laptop and my server. just in case configured the client for port 22 and the fixed IP address of my server. even imported the users.id_dsa.pub key in the client. long story short: I only get that annoying little error window from Nomachine saying: "Cannot initialize the display service"

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OpenSUSE Network :: Open Port On Localhost But Not Remotely

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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General :: Can't Open Display - Localhost - 0.0

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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General :: Can't Open Display Localhost:0.0?

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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General :: Xwd: Unable To Open Display 'localhost:15.0'

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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OpenSUSE Network :: Slow Application Startup Localhost Error

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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Debian :: Windows Manager Error: Unable To Open X Display

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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OpenSUSE Network :: Weirdness With WordPress On Localhost - An Unexpected HTTP Error Occurred During The API Request

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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OpenSUSE Network :: ERROR 1044 (42000): Access Denied For User ''@'localhost' To Database 'mysql'

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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OpenSUSE :: Opensuse 11.4/gnome - Most Gui Apps Not Working With Gtk Error - Cannot Open Display: ::1:1.0

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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OpenSUSE :: Consultation On Gdm - Error (Gnome-properties-Appearance: 18 047): Gtk-WARNING **: Can Not Open Display:

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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OpenSUSE Network :: FreeNX Not Listed In AllowUsers

Jun 25, 2010

I try connect from linux cliente to server.

from cosole to FreeNX server

tail -f /var/log/messages

Jun 12 16:40:51 linux-awd8 sshd[4724]: Accepted publickey for nx from 192.168.1.17 port 41583 ssh2

Jun 12 16:40:52 linux-awd8 sshd[5030]: User usb from localhost not allowed because not listed in AllowUsers

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OpenSUSE Network :: FreeNX For People Upgrading To 11.3?

Jul 18, 2010

Just incase anyone is suffering from the same problem as I was after upgrading to 11.3 that there was no such file or directory in /var/lib/nxserver/db/running/sessionID. I found the answer in another forum and thought i would post it here. Basically there is a change in the openssl library used to calculate the md5sum used by nx which stopped it from connecting.

Putting
COMMAND_MD5SUM="md5sum"
at the end of /etc/nxserver/node.conf fixes the problem.

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OpenSUSE Network :: FreeNX Server Not Running But Responding (?!)?

Feb 28, 2010

I've been working on getting NoMachine and FreeNX working together ... and they're both working well, listening on different ports (guess I should write a howto). At some point I decided to write an init script to control FreeNX behaviour (start, stop, status, setup), since the Ubuntu version has one (called freenx-server) and openSUSE doesn't, but I noticed that it was not necessary, as FreeNX got started automatically... but how ? I could not find any init.d script or command which would start the FreeNX server. Indeed it wasn't actually running :

Code:
neelix:~ # /usr/bin/nxserver --status
NX> 100 NXSERVER - Version 3.2.0-73 OS (GPL, using backend: 3.2.0)

[code]....

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General :: X11 Forwarding - Error: Can't Open Display: <ip Of Display>

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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OpenSUSE Network :: FreeNX / Nomachine NXclient - Thread (nxserver Now Broken?)

Sep 16, 2010

This thread (nxserver now broken?) has inspired me to install FreeNX and the client from nomachine on openSUSE-11.2 (this is the version used on both, server and client machine). The good news is: basically it works. I can connect and get the desktop. However, I have some trouble with the keyboard. Up and Down arrow keys do not work. The up arrow triggers a screen snapshot. The down arrow key does nothing. I tried to connect using qtnx as well. This does not work. Result is:

[code]...

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OpenSUSE Install :: FreeNX: Error: Could Not Find 1.5.0 Or 2.[01].0 Or 3.[01].0 Version String In Nxagent

Aug 9, 2010

Lasted repositories: Index of /repositories/X11:/RemoteDesktop/openSUSE_11.3/i586

FreeNX-0.7.2-28.1
NX-3.4.0-21.1

To day I try install on openSUSE 11.3 and SLES11-SP1, Not finish. Error: Could not find 1.5.0 or 2.[01].0 or 3.[01].0 version string in nxagent. NX 1.5.0 or 2.[01].0 or 3.[012].0 backend is needed for this version of FreeNX.

# nxsetup --install
Removing special user "nx" ...no crontab for nx
done
Removing session database ...done
Removing logfile ...done
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
Setting up /etc/nxserver ...done
[Code]...

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OpenSUSE :: Root Trying To Open Flashplayer In KDE Getting Cannot Open Display

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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OpenSUSE Network :: IPv4 Entry For Localhost Missing In 11.4?

Jun 28, 2011

I had some fun here, with my local Cyrus IMAP daemon. I "updated" the machine to openSuse11.4 (from 11.2) by doing a fresh install. Because some of my involved HW here isn't capable of IPv6, I switched it off using yast2:
Netzwerkger├Ąte/Netzwerkeinstellungen [my translation: Network devices / Network Settings] Globale Optionen [global options] Removed the mark on "IPv6 aktivieren" [activate IPv6]

Then I had a hard fight with Cyrus IMAPd, mostly caused by user brain damage on my part... But one thing really looks like a problem on the Suse side of the fence: My /etc/hosts missed the "localhost"-entry for IPv4 ! This was the contents:

Code:
# special IPv6 addresses
::1 localhost ipv6-localhost ipv6-loopback
127.0.0.2 godot.site godot

[Code].....

I haven't seen this effect on 11.2 here and I haven't seen it on "my other" machine (running 64 bit version of Suse 11.4). But there I think IPv6 is still activated. I will check this, as soon as I get there.

Should this be reported as a potential bug in 11.4 ? Or is there some way, I could have messed up this. (No I didn't edit /etc/hosts by hand, before I corrected this thing)

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Red Hat / Fedora :: Error: Can't Open Display

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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Software :: Error: Can't Open Display

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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Slackware :: Cannot Open X Display `:0.0' Error?

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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OpenSUSE :: 11.4 Gnome 2.3 Display - CRTC Error That The Display Is Over The Maximum - 1920x1920

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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OpenSUSE Network :: Instance Attempting To Write A File From The Localhost?

Jan 17, 2010

This is a follow-on to "samba write failure crashes linux". It has the dmesg output when the write failure occurs.The remote server is os/2 v4.50 fp3.The failure occurred in this instance attempting to write a file from the localhost to a samba-mounted resource on a remote host. The failure always happens when at least 3 MB have been transferred. Smaller files are not a problem.

Other cases:
1. Saving any email (thunderbird) attachments to the localhost,
2. Downloading anything to the localhost using Firefox.

The most notable aspect are the phrases "kernel BUG" and "invalid opcode".

[Code]...

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OpenSUSE Network :: Proftpd Localhost Connection Doesn't Work

Feb 25, 2011

I got everything working except any localhost connections from within the server. I've tried to connect using localhost, 127.0.0.1, and dedicated IP from within the server and several CMS sites I have moved over to the server and all the local host connections fail.

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General :: Error: Can't Open Display: Hostnmae:0.0

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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General :: /usr/bin/xterm Xt Error - Can't Open Display - %s

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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