So the Apache web server has its main configuration,
and that is in etc.httpd.conf.
There can be additional drop-in configuration files
as well in the etc.httpd.conf.d directory.
Default document route is where the HTTP process is
going to look for web documents.
And if you don't change anything,
that would be slash var slash www slash htdocs.
If you don't specify anything from the client,
then Apache looks for a file with the name index.html
in this directory.
And other files or directories that
are copied into the document route
will be presented by the Apache web server as well.