Apache sever, deny all except one file plus rewrite condition

I am trying to deny entire folder, but still have one (several) redirects working

    <Directory "${INSTALL_DIR}/www/ssl">
    	order deny,allow
    	deny from all
    </Directory>

Now when points to /ssl/config I want a redirect to /ssl/config.json file

    <Directory "${INSTALL_DIR}/www/ssl/config">
    	Order Deny,Allow
        Allow from all
    	FallbackResource "${INSTALL_DIR}/www/ssl/config.json"
    </Directory>

Not working
Any clues? Thank you!

The Fallback Resource is a file, located in the dir with full restriction Deny from all. Like this your config.json is restricted, also.

You have to extend the rules for the dir ${INSTALL_DIR}/www/ssl :

<Directory "${INSTALL_DIR}/www/ssl">
    order deny,allow
    deny from all
    <Files "config.json">
        Order allow,deny
        Allow from all
    </Files>
</Directory>

Please Note: These "Allow/Deny"-rules are depreciated. You should use the new "Require"-rules.