On Ubuntu you can use export DISPLAY=:0.0, xhost+, but you cannot use export DISPLAY=lPaddress:0.0, xhost+, b'cos it complains "xhost: unable to open display".Here is the solution: then xhost + I get xhost: unable to open display “IP:0.0” when I try export DISPLAY=”:0.0″ I get the same thing. I am running OUI runinstaller from exceed terminal from windows PC. DISPLAY=serverB.domain.com:0.0 where 0.0 means "display 0, screen 0" You can export the environment variable by saying either: export DISPLAY=serverB.domain.com:0.0 (Bourne shell), or setenv DISPLAY serverB.domain.com:0.0 (C shell). OUI (Oracle Universal Installer) runinstaller. And i have set and eported the DISPLAY parameterter as machine IP:0.0. Gtk Warning Cannot Open Display Ssh without invoking L'Hopital. Thank you for your support for developpaer. From a terminal running in Ubuntu: Code: $ echo $DISPLAY :0.0. You can execute an 'xhost +localhost' without ftuzing with DISPLAY, but that won't help with the authentication problem if you switch users within that session because of the way X forwarding works. Answer: You can fix the “cannot open display” error by following the xhost procedure mentioned in this article. Additionally, the sshd_config on centOS file seems to be setup properly as well: Please advice. This works on the older CentOS 7. Re: Unable to open display ":0.0" after issuing xhost +. DISPLAY=:0.0.. [root@LOCALHOST root]# xhost REMOTEHOST REMOTEHOST being added to access control list [root@LOCALHOST root]# telnet REMOTEHOST. Re: No protocol specified xhost: unable to open display ":0.0" The problem started since I installed my arch linux for the first time. I start an adapter using the following command - I get the following message when clicking on https://www.unix.com/showthread.php?p=33233#post33233 : Unable to display directory info with ps command, xWindows error: xhost unable to open display, HELP: NMON unable to display all the statistic specified via putty. I have set DISPLAY=IPAddress of PC:0.0 When installer starts it is givin | The UNIX and Linux Forums. Using Putty with Xming on the client side, I can get X11 forwarding to work. I am currently using Ubuntu 9.10. Viewed 1k times 1. 2. why are you trying to run GUI apps as root. if none of above, then do following to setup the DISPLAY variable. localmachine-xterm$ echo $DISPLAY. localmachine$ xterm &. i saved file on desktop. I'm on a Windows 10 client trying to reach a Red Hat server. https://wiki.archlinux.org/index.php/Ru … ps_as_root. Hi, I recently migrated to ubuntu 8.10 from windows XP. On boot of X I run the “xhost +”. You need to use an X-emulator if you like to open GUI from Windows I am trying to set the display back so I can run x apps. I added the above entry to /etc/hosts and i no longer have to manually set the DISPLAY env var after logging in. If you mean one of the virtual consoles, than of course it won't run. Soory Jan 31, 2012 3:37 PM ( in response to 914276 ) If hostname is not resolving, try using :0.0. Via putty, connected to my AIX server export... Hi guys, If you have any questions, you can leave a message and communicate with us. Unable to open display 0.0 (multiple apps) Post by gerald_clark » Mon Mar 19, 2012 2:53 pm What do you mean by "via the terminal"? I'm trying to connect to my linux server but I'm having some major problems. Go to … xhost +B. startxwin -- … Here, try to install xdpyinfo first. The X application will then try to open a TCP/IP connection to the X server (server B) on port 6000. Needless to say I am not in a comfortable area, but found out that of all people I am the most knowledgeable on unix here .... scary thought I know. If it runns SAPINST also should work. It's not clear. flag: Code: ssh -X [email protected] In Putty, there is a place for X11 Forwarding. So ORACLE_HOME is unset. – ipatch Oct 28 at 19:31 SunOS 5.9. xhost unable to open display ... xhost unable to open display. $ echo $DISPLAY 1) For xhost: unable to open display "" Issue Avoid using "su" to come to ROOT prompt. I have CentOS6.4 running on a late model Dell Blade Windows8 Alienware laptop I am trying to install ORACLE 10g database on HP-UNIX 11.11 I have configured an instance in AWS EC2. Error: cannot open display: localhost:0.0 To setup the display I used the command $ export DISPLAY=localhost:0.0 Some site suggested using the following, but it didn't work either: $ export DISPLAY=:0.0 I am using PuTTY and I have the Enable X11 forwarding check box checked and XMing is running on Windows. Search. more than likely this answer works because 127.0.0.1 localhost is not defined within the /etc/hosts file as most debian based distros setup 127.0.1.1 localhost thus when you manually set this env var after logging in, things begin to work. Have tried the obvious: xhost + ( on the newrhel74desktop machine) updated : in /etc/ssh/sshd_config. View 2 Replies View Related Ubuntu Networking :: Set Display And Xhost: Unable To Open Display "XXX.XXX.X.XXX:0.0" Jul 20, 2011. [root @ oel5u5 ~] # xclock& Xlib: connection to "192.168.2.2:0.0" refused by server Xlib: No protocol specified Error: Can '' t open display: 192.168.2.2: 0.0. 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After vncserver is installed, the local PC Notebook can connect to the Oracle server remotely through VNC viewer, but in the process of xhost + error reporting, localhost, 127.0.0.1 and local IP address, all of which are unable tool display, as shown below: A program's entry point is always defined by a main function or method. Offline. Active 4 years, 5 months ago. could you please help to with the command. Last Activity: 24 September 2015, 2:37 AM EDT, Last Activity: 16 January 2019, 9:30 PM EST, Last Activity: 19 November 2015, 4:17 AM EST. If not then how to make a crontab in that server. On boot of X I run the “xhost +” then later with SSH into hte box – I run export DISPLAY=:0.0 gnome-screenshot -f jj.png and I get the cannot open display message. The above is the whole content of this article. I can even open an SSH connection through OpenSSH, manually set DISPLAY for that other session to be whatever Putty set it as, and open graphical programs from cmd. I am trying to direct a AIX display to my XWindows and I am at a dead end now! In putty settings, I set "Enable X11 forwarding" and also set "X diplay location" to "localhost:0" (without quotes, of course) 2. I can able to open to see cron entry by using crontab -l in one of the server. 2. Try setting your DISPLAY variable to either 
localhost:0.0
or 
:0.0
. more than likely this answer works because 127.0.0.1 localhost is not defined within the /etc/hosts file as most debian based distros setup 127.0.1.1 localhost thus when you manually set this env var after logging in, things begin to work. I can log into B from A (and vice-versa) by ssh without any problems. set DISPLAY=IPAddress of PC:0.0 I got this problem with NMON unable to display all the statistics specified via putty. I think "I am a newb, maybe localhost really means [LOCAL USER] and try with the permutations mentioned above. After vncserver is installed, the local PC Notebook can connect to the Oracle server remotely through VNC viewer, but in the process of xhost + error reporting, localhost, 127.0.0.1 and local IP address, all of which are unable tool display, as shown below: 2、 Go to view the VNC log information and log information in the background. So this what I've done so far: 1. As per Oracle Installation guide the ORACLE_HOME must be unset when running. I login as root and run the following command - xhost: unable to open display ":0.0" AND . machine$ # Get into X windows. 1. /export/home/xxxxx> ps -ef | grep embargo I am trying to direct a AIX display to my XWindows and I am at a dead end now! / runinstaller to install oracle. I added the above entry to /etc/hosts and i no longer have to manually set the DISPLAY env var after logging in. Simply open a new tab in terminal and it will directly open with ROOT user logged in (Assuming you have logged into the OS with Root User). So this what I've done so far: The UNIX and Linux Forums - unix commands, linux commands, linux server, linux ubuntu, shell script, linux distros. The :0.0 (or just :0) means "connect to the local X display #0 using the most efficient way". Ask Question Asked 4 years, 5 months ago. Directly log in on the GUI as oracle. xhost unable to open display “:0.0” or any hostname - red hat oracle 11.2 client installation. In putty settings, I set "Enable X11 forwarding" and also set "X diplay location" to "localhost:0" (without quotes, of course) I am trying to setup my development environment on ubuntu. There is a difference between DISPLAY values :0.0 and localhost:0.0. xhost +B. – ipatch Oct 28 at 19:31 I'm using PuTTy to connect to the server with Xming running on my loacl machine. 2. nohup ./start_embargoAdapter >/dev/null 2>&1 & Top. I have a problem in this operating system that is unable to open Gtalk. Please reply me. where B is the IP address of some other system in the same network. 3. When I gave xhost + . I have installed /usr/local/stata/xstata-mp as root, permissions 755. I am a dba, not an sa, that recently had to take over administering an HP-UX server. I can log into B from A (and vice-versa) by ssh without any problems. I have Re: Error: Can't open display: localhost:0.0 638669 May 26, 2008 8:06 AM ( in response to 485461 ) reboot or using xmanager tool The UNIX and Linux Forums. The localhost:0.0 value means "connect to the local X display #0 using a TCP socket in port 6000" (port number = display number + 6000). Currently, the $TERM is set to "xterm" which should be compatible with NMON display. Here is what I have done: export DISPLAY=:0.0 [[email protected] ~]$ xhost + Xlib: connection to ":0.0" refused by server. I am unable to display downloaded file from unbunto. On the remote machine: export DISPLAY=newrhel74desktop:0. xterm. I am trying to setup my development environment on ubuntu. Man. Try to run some test program like xclock or (any OS level GUI based program from the terminal where you are trying to get SAPINST gui)to makesure the problem is not because of the DISPLAY and xhost variables. Run 'xeyes' and the window pops up fine. Issue: xhost unable to open display ” ” xhost unable to open display “:0.0” Resolved: 1. Hello, THANK YOU. Error: Can't open display: localhost:0.0 Press ENTER or type command to continue. Quick Links UNIX for Advanced & Expert Users . Return = xterm Xt error: Can't open display. i am using vmware players . xxxxx 8866 1 0 Oct 06 ? But neither of the following work: Code: $ DISPLAY=localhost:0.0 xeyes Error: Can't open display: localhost:0.0. If it does not work (if you are connecting from remote): Use the -listen tcp option to restore the previous behaviour, allowing the X server to open a TCP/IP socket as well e.g. I am installing oracle 11g by following this link, but while setting up X-server, I am getting following error, oracle@sachin-laptop:~$ export DISPLAY=:0 oracle@sachin-laptop:~$ xhost +localhost No protocol specified Mike I use XMing, which has e.g. On Ubuntu you can use export DISPLAY=:0.0, xhost+, but you cannot use export DISPLAY=lPaddress:0.0, xhost+, b'cos it complains "xhost: unable to open display".Here is the solution: You can see that the VNC log information is normal without any abnormal information, Google has got some information. After that, you can execute xdpyinfo, and xhsot + succeeds. Re: No protocol specified xhost: unable to open display ":0.0". then later with SSH into hte box – I run export DISPLAY=:0.0. gnome-screenshot -f jj.png and I get the cannot open display message. It is giving error xhost: unable to open display. which prints out B being added to access control list. From a remote connection you can't connect to localhost:0.0 because that display is not owned by the logged in user. From a remote connection you can't connect to localhost:0.0 because that display is not owned by the logged in user. xWindows error: xhost unable to open display. When installer starts it is giving me error of display. If you mean from an xterm, then try 'xhost +localhost' first. As shown below, you can start. Re: /usr/bin/X11/xhost: unable to open display If you telnetting the HP-UX from Windows and trying this, it wont work. I believe this is due to libncurses rather than NMON and also the env variable $TERM. xxxxx 28086 20761 0 23:23:29 pts/7 0:00 grep embargo 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. So from a separate XTerm in A I ssh into B, and from B's command line I issue the following command: export DISPLAY=A:0.0 I cant able to open another server. I am having a similar problem. 1) Do you have an X Server (such as Exceed or Cygwin-X) running on Windows XP when you are running the program? You can execute an 'xhost +localhost' without ftuzing with DISPLAY, but that won't help with the authentication problem if you switch users within that session because of the way X forwarding works. Its having a lot of features. where B is the IP address of some other system in the same network. I have 2 solaris server. 1. user@host ~ % xhost -si:localuser:root xhost: unable to open display "0" I get desperate, and try: user@host ~ % DISPLAY=0 xhost -si:localuser:root xhost: unable to open display "0" I try other display numbers all to no avail. Forums. It is ready to install xdyinfo successfully. Could i get the information to use Gtalk in Ubuntu 9.10. When I put export DISPLAY=”IP address:0.0″ ip address being my windows8 desktop. xhost: unable to open display "practice.ol75.com:0.0" You can see I tried everything I could think of but it failed and failed again. I am trying to run ‘xhost +’ on CentOS 8 (such that I can grab a screen shot) but its not letting me. Hello, which prints out B being added to access control list. It is an X program. The server had OEL 5 installed and my local pc is running Windows XP. For ex: system1 # xhost - system2 # ssh -X system1 system1 Gedit Cannot Open Display Mac cannot open display [Solved] karol wrote:The display should be set on its own. Today's Posts. You can also check the complete Environment Variables for the User using the below mentioned command where you will find the entry for the DISPLAY, Hi, Hi, I recently migrated to ubuntu 8.10 from windows XP. Code: $ DISPLAY=127.0.0.1:0.0 xeyes Error: Can't open display… April 18, 2020 Jerry Geis CentOS 4 Comments. So from a separate XTerm in A I ssh into B, and from B's command line I issue the following command: export DISPLAY=A:0.0 For local clients, use DISPLAY=:0.0, rather than DISPLAY=localhost:0.0, DISPLAY=127.0.0.1:0.0, DISPLAY=::1:0.0, etc. possibility is that you are trying to run "xhost" before actually getting into X on your local machine. I hope that the content of this article can bring some help to your study or work. localmachine-xterm$ export DISPLAY="localmachine:0.0". its says cat filename no file and directory but file is there. Last Activity: 13 January 2006, 5:07 PM EST. How to check if crontab is fixed in that server. When I try to run this program from a non-root account via the terminal, I get: I am installing oracle 11g by following this link, but while setting up X-server, I am getting following error, oracle@sachin-laptop:~$ export DISPLAY=:0 oracle@sachin-laptop:~$ xhost +localhost No protocol specified 1. are you running from X or from tty. Re: /usr/bin/X11/xhost: unable to open display If you telnetting the HP-UX from Windows and trying this, it wont work. Once new tab is opened, again run I had this problem before with other laptops, but the other solutions worked that time. [USER@ REMOTEHOST] 1%xterm & xterm Xt error: Can't open display: LOCALHOST:0.0 [USER@ REMOTEHOST] 2%env.. DISPLAY=LOCALHOST:0.0.. 1. You need to use an X-emulator if you like to open GUI from Windows $ DISPLAY=localhost:0.0 xeyes error: Ca n't connect to localhost:0.0 because that display is not by... And linux Forums - UNIX commands, linux server, linux commands, linux ubuntu, shell script linux. And try with xhost: unable to open display "0:0" permutations mentioned above than of course it wo n't run Question Asked 4 years 5... Filename no file and directory but file is there is there is to... After issuing xhost + ( on the newrhel74desktop machine ) updated: in.. Asked 4 years, 5 months ago a AIX display to my XWindows and i get the to! Run 'xeyes ' and the window pops up fine echo $ display i have installed /usr/local/stata/xstata-mp root... Try to open display if xhost: unable to open display "0:0" telnetting the HP-UX from Windows XP then... Not owned by the logged in user operating system that is unable open! On HP-UNIX 11.11 i am unable to open a TCP/IP connection to the server had 5... Issue: xhost unable to open display ``:0.0 '' after issuing xhost + < machine. Of some other system in the same network ” or any hostname - red server! To localhost:0.0 because that display is not owned by the logged in user when installer starts is... I added the above is the IP address of some other system in the same.... Xdpyinfo, and xhsot + succeeds an xterm, then do following to setup my development environment ubuntu! Mentioned above installer starts it is giving me error of display which has e.g tried the obvious: xhost