Zend certified PHP/Magento developer

Track from which computers a file has been saved

Is there any way to track from which computer (username) a certain file has been modified? From right click > Properties > Details you can see the creator of the file, but I would like to see who has “save” the file.

I am a teacher, and this would be good for me to avoid fraud in computer-based exams.

Linux or Windows solutions are welcome