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----- Original Message -----
From: "Rasmus Lerdorf" <rasmus@xxxxxxxxxxx>
To: <mstearne@xxxxxxxxxxxx>
Cc: <php-install-help@xxxxxxxxxxxxx>; <php-general@xxxxxxxxxxxxx>
Sent: Thursday, May 19, 2005 12:57 PM
Subject: Re: System Call Troubles
> 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.
>
> These sorts of problems are easy to debug. Switch to your web server
> user id and issue the same command. You will most often find you have a
> permission problem, or in the Fedora/Redhat world you will find that
> SELinux is yanking your chain. You may want to read through:
>
> http://fedora.redhat.com/docs/selinux-faq-fc3/
>
> -Rasmus
>
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