CODE EXAMPLE FOR SHELL

Apache Webserver does not show directory listings but 403 - Yosemite

open "/private/etc/apache2/httpd.conf" in an editor. Scroll down until you find this part:

<Directory "/Library/WebServer/Documents">
Inside there you'll need to add "Indexes" to your "Options". For me, this meant changing this line:

Options FollowSymLinks Multiviews
To:

Options Indexes FollowSymLinks Multiviews

Then restart apache:

apachectl restart