<files wp-login.php> errordocument 403 http://example.com/restricted/ order deny,allow deny from all </files>
Is there a way that I can allow access to a specific individual site using another directive?
I don’t know how multisite generates those URLs, as I don’t see an obvious rewrite rule.
If you want to provide restricted access, you should add an additional string with the
/wp-login.php URL. For example:
If the URL does not have such a string parameter, then you can redirect them to a 404 page; you don’t need to rewrite the
.htaccess file for it.