I have to see if my shared host has suexec or suphp. I discovered this documentation: http://www.alain.knaff.lu/howto/PhpSuexec/

In the very finish of the document there's an evaluation. After I run the exam, it states:

Warning: system() continues to be disabled for security reasons in /home.......... online 3

Can there be every other approach to check it? (I've SSH access)