Dumb question

[Jack Aubert]

I realized recently that I don't know the answer to a basic question, whiich
is kind of embarrassing since I'm taken for a local guru on DNS questions.

How do sites resolve domain names directly to a web server or group of web
servers without a host name?  For example, "nytimes.com" resolves to three
or four addresses which appear to be aliases for www1, www2, www2 and so
forth.  I have in my own little dns an entry for www.chezaubert.net that
resolves to an IP address.  How do I resolve chezaubert.net to the same IP
address?