I want to set up access rights for my files.

“wwws” it the folder where you publish files on the web; therefore, everybody should have “read” rights on this folders. As for your other folders, unless you have a particular reason to do otherwise, you should set no rights for everyone except you.

If there is a reason and you want to change permission, it is possible to do it by using the Linux chmod command or by SSH access with WinSCP or something.