System Call/Script Troubles

[Paul Howarth]

Michael Stearne wrote:
> I am having the strangest problem using system() or exec() or any
> variation.  None of them work on the Fedora Core 3 system that was
> just loaded.  The PHP is Version 4.3.11 with Apache 2.0.52, the default
> installation for Fedora Core 3.  Everything in PHP works as expected
> except when trying a system call.  If I run :
> 
> <?
> system("/bin/ls /tmp");
> ?>
> 
> on my OS X (Apache/1.3.33 (Darwin) PHP/4.3.4) this returns the desired
> results, a listing of the tmp directory.  On the Fedora box I get
> nothing, a blank page.  There is content in the /tmp directory on the
> Fedora box.
> 
> It also seems that I can't even run a shell script in the
> /var/www/html directory even from the command line?  Does anyone know
> what this restriction is about?

Do you have SElinux enabled, and if so, are there audit messages in 
/var/log/messages when you try to do these things?

Paul.