AccessFileName
.htaccess
When returning a document to the client the server looks for the first existing access control file from this list of names in every directory of the path to the document, if access control files are enabled for that directory. For example:
AccessFileName .acl
before returning the document /usr/local/web/index.html, the server
will read /.acl, /usr/.acl, /usr/local/.acl and /usr/local/web/.acl
for directives, unless they have been disabled with
<Directory />
AllowOverride None
</Directory>