What should a name based VirtualHost directive look like?

There are two parts to this. The first one is that you must issue a directive which gives Apache an IP address to serve the name based domains from. Like this:

   # If you want to use name-based virtual hosts you need to define at

   # least one IP address (and port number) for them.

   #

   NameVirtualHost 12.34.56.78:80

   NameVirtualHost 12.34.56.78

The se...