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POPHP shell_exec, permission denied for executing -rwxrwxrwx shell script
 

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  1. POPHP shell_exec, permission denied for executing -rwxrwxrwx shell script
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    <p>I am currently over ssh on a remote CentOS 5.6 system which runs an Apache webserver. I need to use the poppler <code>pdftohtml</code> binary which, unfortunately, is not currently installed on that machine. So I downloaded the poppler package and built it under my user folder. Since I I am not the system admin, I didn't do</p> <pre><code>make install </code></pre> <p>and I have all my compiled files under</p> <pre><code>/users/myfolder/poppler-0.18.2/ </code></pre> <p>The file that I need to execute through php <code>shell_exec()</code> is </p> <pre><code>/users/myfolder/poppler-0.18.2/utils/pdftohtml </code></pre> <p>If I execute it through my ssh bash, I get the correct output. If I, instead, put this line on a php script:</p> <pre><code>echo shell_exec("/users/myfolder/poppler-0.18.2/utils/pdftohtml"); </code></pre> <p>I get the following output:</p> <pre><code>sh: /users/myfolder/poppler-0.18.2/utils/pdftohtml: Permission denied </code></pre> <p>I tried setting to 777 the file permissions, which currently are -rwxrwxrwx. I also noticed that using <code>shell_exec("whoami");</code> results in "apache". Shouldn't apache be able to execute the script if the file permissions are -rwxrwxrwx?</p> <p>I also know that installing poppler through <code>make install</code> would solve the problem but since this is for testing purpose, I would like to avoid "contaminating" the system outside my personal folder until the testing is complete.</p> <p>Thanks to anyone who will help!</p>
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    1. CODoesn't CentOS also use SELinux?
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