Comment 3 for bug 1044155

Look at the authpuppy documentation http://www.authpuppy.org/doc/Getting_Started, the apache configuration shows

       ServerName authpuppy.localhost
       ServerAlias authpuppy.test

which is whatever your domain name should be.

Now make sure the dns is right. From outside, your DNS provider does the job. From inside your lan though, you may need to set the hosts on your main gateway router so that www.yoursite.com resolves to the right machine.