If you are referring to a site that has limited access, ie... Only those folks that you select can access, there would be two ways...
1: Password protect your /www directory and build your site normally and only those with access to the username and password can access.
http://Service.FutureQuest.net/kba14
2: If you want to have something that anyone can access while you are developing the site you would create a subdirectory under the /www something like /www/beta. Password protect that directory and develop the site there...
However note that if you are using WordPress to build the site there are steps you have to take to move it to the /www once ready.
https://codex.wordpress.org/Moving_W...xisting_Server
-Bob
Psst...
http://www.futurequest.net/Community/SiteOwner/