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Check that you are using the right host name and the right display number. Possible cause #1: no valid X authentication credentials With the default X authentication mechanism, an X client needs to have access to a valid X session cookie (which is, essentially, a Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Xlib: connection to ":0.0" refused by server Xlib: Client is not authorized to connect to Server xterm Xt error: Can't open display: love.dial.xs4all.nl:0.0 The client could make a connection to the weblink

Join our community today! X has its own authentication mechanism to determine whether a client is allowed to connect to a server; this is used, for example, to prevent another user from being able to Allow clients to connect from any host using xhost+ Execute the following command to disable the access control, by which you can allow clients to connect from any host. $ xhost The easiest way to check if this is the problem is to use the -y flag with ssh. https://bbs.archlinux.org/viewtopic.php?id=108695

Error Cannot Open Display 0.0

Having a problem logging in? you can also try this: - X11Forwarding yes X11DisplayOffset 10 X11UseLocalhost yes more on: X-Forwarding –nbari Jan 15 '14 at 10:27 add a comment| up vote 3 down vote First a I worried that this would make my user account unable to run any X commands without sudoing (since root now owns X), but apparently not.

gdk? As a non root user, I'm able to delete a file made by root with 0444 permissions? Okay, done; but why do I have to this? When DISPLAY does not contain a hostname, e.g.

If you still get the "cannot open display" error, set the DISPLAY variable as shown below. $ export DISPLAY='IP:0.0' Note: IP is the local workstation's IP where you want the GUI acid_kewpie View Public Profile View LQ Blog View Review Entries View HCL Entries Visit acid_kewpie's homepage! As the Internet has become an increasingly hostile environment, it has become good practice to only open up services to the Internet when they are really needed. http://askubuntu.com/questions/523677/error-cannot-open-display-0-0-while-starting-remotelly-firefox Society Groupthink : Two Party System as Polyarchy : Corruption of Regulators : Bureaucracies : Understanding Micromanagers and Control Freaks : Toxic Managers : Harvard Mafia : Diplomatic Communication : Surviving

All rights reserved | Terms of Service current community blog chat Super User Meta Super User your communities Sign up or log in to customize your list. Output of strace xterm is following: # strace xterm execve("/usr/bin/xterm", ["xterm"], [/* 16 vars */]) = 0 brk(0) = 0x9e50000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap2(NULL, This behavior went away a soon sshd is configured to use only IPv4, because of an X11 forwarding bug in SSH if IPv6 on the system is disabled. Yes, 'root' is the supreme God of your system and is omni potent.

Find More Posts by acid_kewpie 05-12-2010, 03:38 PM #5 acid_kewpie Moderator Registered: Jun 2001 Location: UK Distribution: Gentoo, RHEL, Fedora, Centos Posts: 43,417 Rep: BTW, vnc is awful in see here Syntax Design - Why use parentheses when no arguments are passed? Error Cannot Open Display 0.0 This caused the symptoms reported here. This solved my problem too.

SSH server version is OpenSSH_5.9p1 and SSH client version is OpenSSH_5.2p1. have a peek at these guys Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. When it does contain a hostname, e.g. I had a problem to run any GUI application through gksu or kdesudo as well ( Gtk-WARNING **: cannot open display: ) /as from desktop as from terminal/ I solved it

The full text of the error or warning message cannot be safely formatted in this environment. Making the parsing of a String to an Int32 robust (valid, positive, not 0 validation) How can I list two concurrent careers, one full time and one freelance, on a CV? How do I fix this? check over here I'm not using a vnc, whatever that is, but I have had the same problem in my distro (antiX, with heavy modifications), when trying to sudo synaptic and at least one

Have you tried it? Is the sum of two white noise processes also a white noise? pfft!

I actually tried the xhost solution before posting but didn't work , i just wanted to confirm that im doing it correctly.

Why are there so many different amounts received when receiving a payment? For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Thanks Link naveen January 4, 2012, 7:53 am rly good solution ..its worked for me Link Rashid December 6, 2013, 3:23 am i install geany and when run it got below also export DISPLAY='IP:0.0′ with local ip, can any one help me to remove this error to run geany #geany Geany: cannot open display Link Peter June 29, 2014, 3:26 am xhost+

My adviser wants to use my code for a spin-off, but I want to use it for my own company Why are so many metros underground? If you'd like to contribute content, let us know. Check that you have the correct DISPLAY set, and that the server machine is reachable from your client (it should be, after all you're probably logged in to the server and http://megavoid.net/error-cannot/error-cannot-open-display-localhost-11-0.html All the suggestions on the Internet say that I should set the display variable to fix that error, but that doesn't do anything for me :( –SaiyanGirl Sep 10 '12 at

If I set manually DISPLAY=127.0.0.1:10.0, or DISPLAY=::1:10.0 it does work. Identifying a Star Trek TNG episode by text passage occuring in Carbon Based Lifeforms song "Neurotransmitter" How can I list two concurrent careers, one full time and one freelance, on a The time now is 11:28 AM. asked 2 years ago viewed 101579 times active 9 months ago Linked -2 how to run X applications as root over ssh 13 How to eliminate annoyances when starting a GUI

Open GUI applications in that host After opening ssh connection to the remote host as explained above, you can open any GUI application which will open it without any issue. Then just set it and export it. As a non root user, I'm able to delete a file made by root with 0444 permissions? See the Remote X Apps mini-HOWTO for details [3]. (My understanding.) 1: http://www-it.desy.de/systems/services/x11/xsec.html 2: http://www.acm.uiuc.edu/workshops/cool_unix/xauth.html 3: http://tldp.org/HOWTO/Remote-X-Apps.html Link Slappy June 25, 2010, 6:37 pm xhost is a security nightmare.

Browse other questions tagged x11 x11-forwarding or ask your own question. In a bourne style shell, do DISPLAY=:0.0; export DISPLAY. and others. As a good security practice, when a network service (like X connections via TCP port 6000) is enabled, access to it should be restricted to authorized systems only, e.g.

X11 is not the most secure protocol. This allows those users to access their Linux environment using a graphic (GUI) console connected to the workstation or server. Physically locating the server Why IsAssignableFrom return false when comparing a nullable against an interface? Topics: Active | Unanswered Index ┬╗Applications & Desktop Environments ┬╗Error: cannot open display: :0.0 [SOLVED] Pages: 1 #1 2010-11-19 17:53:38 lubiebudyn Member Registered: 2010-11-19 Posts: 4 Error: cannot open display: :0.0