How to override an A record
David Nolan
vitroth+ at cmu.edu
Fri Jul 14 15:05:48 UTC 2006
--On Friday, July 14, 2006 09:58:21 -0400 Bill Sandiford
<sysop at interlinks.net> wrote:
> I need to know how to place a record for www.foo.bar.com into my DNS
> servers without breaking the lookups for all other records in that
> domain and any subdomains.
>
Configure your server such that www.foo.bar.com is a domain, with a single
A record
for the domain name. If you need baz.www.foo.bar.com to point back to the
original servers you've got a harder problem. You could put NS records in
for known subdomains, but that doesn't guarantee everything will work. It
might be possible to solve that with a wildcard NS record, if thats even
legal....
It should be obvious that this is a hack, but its about the best you can do
without a transparent proxy of some form, which wouldn't be solving it via
DNS.
-David Nolan
Network Software Designer
Computing Services
Carnegie Mellon University
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