Reported by Jan S., Apr 19, 2017
Software: Ubuntu 16.04.2 Scilab 5.5.2 BackDoor 0.2 When I run 'sudo scilab-adv-cli' in putty, BackDoor will start and listen on port. I want to run scilab server from API, but when I run from PHP shell_exec('sudo scilab-adv-cli 2>&1'); the result is Start Toolbox BackDoor Load macros Load gateways Load help Opening back door Killed I don't know why is killed. I try run never-ending while shell_exec('sudo scilab-adv-cli -e "i = 1; while i < 10 end; " 2>&1'); but is also killed after few seconds. I tried this at scilab without BackDoor module, and the proces scilab-adv-cli is running until I manually kill him. With BackDoor is killed after few seconds. Steps to reproduce the problem: 1. (from PHP) shell_exec('sudo scilab-adv-cli 2>&1'); 2. or shell_exec('sudo scilab-adv-cli -e "i = 1; while i < 10 end; " 2>&1'); Expected result: Start Toolbox BackDoor Load macros Load gateways Load help Opening back door BackDoor: listening to connections on TCP port 27020 Actual result: Start Toolbox BackDoor Load macros Load gateways Load help Opening back door Killed (sometimes it returns also 'BackDoor: listening to connections on TCP port 27020' but after this is still 'Killed' ) I wrote the problem at stackoverflow, too http://stackoverflow.com/questions/43410361/runnig-scilab-with-backdo or-from-php
Comment 1 by Jorge832 Nolan, Feb 13, 2019
The problem is probably that the Backdoor opens a TCP port for receiving connections. Check your PHP module to see if it has permission to open such a port https://tellthebell.us.
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