1.1.3.1 Failed to Connect to Server Error

If you receive an Xlib error or a “Failed to connect to Server” error when running OUI on Linux, verify that the DISPLAY environment variable is set correctly and that the Linux host can access the X11 display.

1. On the host where you are running OUI, set the DISPLAY environment variable:

   export DISPLAY=<machine_name>:0.0 

2. Replace <machine_name> with the host name or IP address of the computer that will display the OUI window.
3. On the computer that will display OUI, allow X11 connections from the Linux host using your site-approved X11 access method. Avoid unrestricted access such as xhost + unless it is explicitly permitted by your security policy.
4. Rerun the installer:

   sh ./runInstaller.sh