How to `handle` all subdomain requests of a specified zone?

[Ivo Marino]

Hello folks,
   I would like to configure my DNS server (Debian based BIND 9) in
order to handle `automagically` all subdomain requests of a given zone.

   I'll try to explain with an example: Let's assume I manage the zone
foo.org and would like to handle each subdomain request like bar.foo.org
or blech.foo.org as a CNAME to foo.org -- This should happen dynamically
in order to handle ALL *.foo.org subdomains automatically as CNAMEs.

   Does BIND 9 support this kind of dynamic DNS zone handling? I've seen
something similar on tinusi.com, e.g. when I ask for
abcdefg123456.tinusi.com this will return me a CNAME to tisumi.com,
whether 'abcdefg123456' exists as a valid (static) DNS zone or not.

   I think the BIND 9 feature I'm looking for should be known as
something like Dynamic DNS zone handling, any ideas? I've tried to
Google for this topic without finding any useful information.

   Thanks in advance for feedback.
Best regards,

I.

P.S. I'm current off-list so please Cc: me on each reply, thanks.

-- 
   .''`.   Ivo Marino <eim at mentors.debian.net>
  : :' :   irc.FreeNode.net chan #debian-mentors
  `. ``    UIN 32463141 + JID eim at jabber.linux.it
    `-     Homepage http://mentors.debian.net/~eim/