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From Jonathan Manning <>
Subject [users@httpd] Calls to a Java program from a CGI script (via Apache)
Date Tue, 06 Jul 2004 22:39:22 GMT
Hello to all,

I'm attempting to run a Java program via a Perl CGI script system call.
While I've got the script running fine from the command line; I have
problems running from apache, the following message appearing in the
Apache error log: 

java.lang.InternalError: Can't connect to X11 window server using 
':0.0' as the value of the DISPLAY variable 

I've attempted setting the environment variable from the script prior to
the call to the java program like: 

system ("export DISPLAY=<my IP>:0.0");

and similar solutions like:

system ("xhost +localhost");
system ("export DISPLAY=localhost"); 

With no success. From lots of googling it seems that installing xvfb
might or might not help- is that a good idea? 

I'm working with Fedora Core 1 and Apache 2.0. 

Any help appreciated! 



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