I am hosting a website on Linux-Apache server. I have a folder called 'docs'. I want to be able to link directory to a PDF file within this folder, i.e. www.mydomain.com/docs/filename.pdf. But what I don't want is the have users be able to see all the files displayed as a list is they were to type in www.mydomain.com/docs/. What do I need to do so the files could be directly linked and downloadable, while not allow visitors to view the complete file list of all content within that folder. Is it a matter of changing a folders permissions or something else?