If i'm hosting www.aaa.com on my home computer,
could I create an unlimited number of subdomains (www.sub.aaa.com) ?
and would I have to register them with a dns or something ?
or would the computer hosting aaa.com redirect you ?
i.e. to get to www.sub.aaa.com would the routing be:
www.sub.aaa.com ---> www.aaa.com ---> www.sub.aaa.com
...just in theory, i'm no server admin...[surprised, right ?]