Error cannot open display localhost 0 0 - trying to open Firefox from CentOS 6 2 64bit and display on Win7

Question

I am on a Windows7 machine and I m trying to get firefox to open on the centOS machine  but be displayed on my current screen   When typing firefox in terminal  I am getting the following error   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  Additionally  the sshd config on centOS file seems to be setup properly as well     cat  etc ssh sshd config  grep -i x11  X11Forwarding no X11Forwarding yes  X11DisplayOffset 10 X11UseLocalhost yes   I ve looked over numerous pages and searched StackOverflow as well  but none have managed to help me in any way   Thank you in advance

User · Accepted Answer

So  it turns out that X11 wasn t actually installed on the centOS  There didn t seem to be any indication anywhere of it not being installed  I did the following command and now firefox opens   yum groupinstall  X Window System     Hope this answer will help others that are confused

User · Answer

before start make sure of installation   yum install -y xorg-x11-server-Xorg xorg-x11-xauth xorg-x11-apps    start xming or cygwin make connection with X11 forwarding  in putty don t forget to set localhost 0 0 for X display location  edit sshd cong and restart        cat  etc ssh sshd config   grep X                              X11Forwarding yes                              X11DisplayOffset 10 AddressFamily inet    Without the X11 forwarding  you are subjected to the X11 SECURITY and then you must  authorize the remote server to make a connection with the local X Server using a method  for instance  the xhost command  set the display environment variable to redirect the output to the X server of your local computer  In this example  192 168 2 223 is the IP of the server 192 168 2 2 is the IP of the local computer where the x server is installed  localhost can also be used    blablaco blablaco01     xhost 192 168 2 223 192 168 2 223 being added to access control list  blablaco blablaco01     ssh -l root 192 168 2 223 root 192 168 2 223s password  Last login  Sat May 22 18 59 04 2010 from etcetc  root oel5u5     export DISPLAY 192 168 2 2 0 0  root oel5u5     echo  DISPLAY 192 168 2 2 0 0  root oel5u5     xclock amp    Then the xclock application must launch   Check it on putty or mobaxterm and don t check in remote desktop Manager software  Be careful for user that sudo in

User · Answer

I faced this issue once and was able to resolve it by fixing of my  etc hosts  It just was unable to resolve localhost name    Details are here  http   itvictories com node 6  In fact  there is 99  that error related to  etc hosts file  X server just unable to resolve localhost and all consequent actions just fails   Please be sure that you have a record like  127 0 0 1 localhost   in your  etc hosts file

User · Answer

In my case the issue was caused due to mismatch in  Xauthority file  Which initially showed up with  Invalid MIT-MAGIC-COOKIE-1  error and then  Error  cannot open display   0 0  afterwards  Regenerating the  Xauthorityfile from the user under which I am running the vncserver and resetting the password with a restart of the vnc service and dbus service fixed the issue for me

User · Answer

I had this error message   Error  Can t open display  localhost 13 0   This fixed it for me   export DISPLAY  localhost 10 0    You can use this too   export DISPLAY  127 0 0 1 10 0

[x11] Error: cannot open display: localhost:0.0 - trying to open Firefox from CentOS 6.2 64bit and display on Win7

Examples related to x11

Examples related to x11-forwarding