This will be my last public reply on this topic as it appears Jon and I 
are degenerating into opposing monologues.

Jon wrote:
> At a guess, I would submit that since domains are read left to right, 
> DNS queries run until they fail. Once the search fails (as it would at 
> the subdomain part that has no DNS entry), the main domain IP is 
> provided. As long as the server that picks up at that main IP knows to 
> look for subdomain X, it will handle the redirection.

BZZT. It doesn't work that way. Maybe some web browsers might do that 
but if they do, it is incorrect behaviour.

I highly recommend you read a book that explains DNS, such as the 
excellent DNS & Bind book.

>> There is absolutely no possible way to create a subdomain without having 
>> a DNS entry for it.
> 
> You, sir, are wrong :)

With all due respect, sir, you are the one who is wrong. I do this for a 
living and I have been for a decade. It's my job to know how subdomains 
and DNS work.

You mentioned in another email that you use zoneedit for your domains. 
I'd be willing to wager that you have your zoneedit configuration set up 
to include a wildcard DNS entry. If that is the case, then you do, in 
fact, have DNS entries for your subdomains.

> 
> Try it. Someone must be running Apapche2 and willing to spend 2 minutes 
> doing this.

I DO run Apache 2. There is no "a2ensite" program that comes with it. 
That appears to be a distribution specific collection of magic.

I stick by my statement that there absolutely has to be a DNS entry for 
a subdomain for it to work at all. Without the DNS entry, the request 
never gets to Apache so in this case, Apache is a red herring. Either 
some magic is going on under the hood to create the DNS entries or there 
is a wildcard.

-- 
William Astle
finger [EMAIL PROTECTED] for further information

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