http://www.perlmonks.org?node_id=897857


in reply to stderr to script-logfile with CGI::Fast

The cause of the "problem"

From http://cpansearch.perl.org/src/BOBTFISH/FCGI-0.70/os_unix.c:

/*
 * Close STDIN unconditionally.  It's used by the parent
 * process for CGI communication.  The FastCGI applciation
 * will be replacing this with the FastCGI listenFd IF
 * STDIN_FILENO is the same as FCGI_LISTENSOCK_FILENO
 * (which it is on Unix).  Regardless, STDIN, STDOUT, and
 * STDERR will be closed as the FastCGI process uses a
 * multiplexed socket in their place.
 */

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