This is the default example configuration of dir.conf provided by Apache. This config file was generated by Apache running on Debian 9.
It is located under: /etc/apache2/mods-available/dir.conf
<IfModule mod_dir.c>
DirectoryIndex index.html index.cgi index.pl index.php index.xhtml index.htm
</IfModule>
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
Download the raw file with wget or curl
wget -O dir.conf.example http://exampleconfig.com/static/raw/apache/debian9/etc/apache2/mods-available/dir.conf
curl http://exampleconfig.com/static/raw/apache/debian9/etc/apache2/mods-available/dir.conf > dir.conf.example
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