I want to start program when I enter my webpage, and problem is in permissions(??) because when I try
echo exec('whoami');
I've got valid response (www-data) but when i try code like it:
echo exec('/var/www/./sitesend');
and
echo passthru(/var/www/./sitesend');
I got no response. I tried to
chown www-data /var/www/sitesend
chmod 755 /var/www/sitesend
My C++ app runs correctly, and its sending by NRF infromations to turn lights. But not work, when enter page app won't run and I don't get any reps in echo.
I don't have a conclusive answer, but you can try a number of things:
Try the follow command to see if www-data may run the command.
sudo -u www-data /var/www/sitesend
Try running a PHP script with the passthru command from the commandline.
See if you're running AppArmor for the Apache process. AppArmor will block execution for files not white listed.
ls /etc/apparmor.d