What happens if we run both modules? The answer is that the modules cooperate as you might hope: if there is an index.html file then it is used; if there isn't then the directory is indexed automatically.
LoadModule dir_module /usr/lib/apache2/mod_dir.so DirectoryIndex index.html index.htm # Enable automatic indexing of directories LoadModule autoindex_module /usr/lib/apache2/mod_autoindex.so Options +Indexes IndexOptions FancyIndexing ...