Thursday, May 3, 2012

Xlib: connect to ":0.0" refused by server not able to lauch Oracle GUI

When I am trying to install oracle from Oracle Enterprise Linux I got the below error while launching GUI Interface.

Xlib: connect to ":0.0" refused by server
Xlib: No protocol specified

xhost: unable to open display ":0.0"

I am able to execute xhost commands from root user, whereas when i am running it with oracle user i am getting the above error.

To resolve it

root > xhost +
output --- access control disabled, clients can connect from any host

login from oracle using other terminal, run the below command to verify whether xhost commands are working or not

oracle > xclock --> If it displays clock then you directly launch oracle Installation GUI using runInstaller

If not login into Lunix using oracle login then type startx, you will be able to work with xhost.

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