By default file listing is deactivated – for a good reason – and that reason is security so please don’t change the default settings. It’s not required to change the apache settings. You can usually enable the file listing for specific directories using the .htaccess files.

Here an example of how to do it using the shell.

First create a new folder eg named “videos”. 

mkdir videos

Switch into the folder 

cd videos

and create an .htaccess file

vi .htaccess

The editor “vi” should have started. Press “i” to enter the insert mode, then enter the following line (on an empty new line if you don’t edit an empty file):

Options +Indexes

Press “Esc”, then type “wq” and hit return to save the file and leave the editor.

Done.

Of course you can also use FTP or SCP utilities to get the .htaccess file onto the server instead.