Excuse me, where do I set that parameter 744

I'm using aruba as hosting providers and linux as a platform. I saw that the permissions on the folders modules are set as written, read and execute.
Or i have to change it on joomla?

from the control panel of aruba, the file style.css.php I can change the permissions. Basic User only has permission to both read and write. I set and other groups with the same permissions, adding its implementation. But the problem persists. I have to reload the module or reloading the page would be enough to see if it is successful?