Maybe your web server machine runs SELinux or something that prevents the Apache user from making outbound network requests.

If you can reduce the Perl script to a minimal, self-contained script to reproduce the problem, maybe somebody can find the reason why things don't work.

Have you tried launching the script directly, without PHP in the middle? Maybe from a shell script or a tiny Perl script.

In reply to Re^2: Execute a perl script from PHP? by Corion
in thread Execute a perl script from PHP? by jtzako

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