How to override an A record

[Kevin Darcy]

I'm not sure why you're worried about this. Things you do in the 
example.com zone don't mess up the .com zone, do they?  This is just the 
same thing except a couple of levels farther down in the namespace 
hierarchy.

                                                                         
                                 - Kevin

Bill Sandiford wrote:
> Thanks David:
>
> I'm not worried about resolution of further subdomains below 
> www.foo.bar.com.  My problem is that I am worried about other A records (or 
> records of other types) in the foo.bar.com domain.  For example, I want to 
> override a single A record www.foo.bar.com  but I still want the A record 
> for say, www2.foo.bar.com to resolve through normal channels from the true 
> authoritive DNS server.
>
> Bill
>
> "David Nolan" <vitroth+ at cmu.edu> wrote in message 
> news:e98cpg$1f5k$1 at sf1.isc.org...
>   
>> --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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