On 23 Jul 2010, at 21:57, Ray wrote:

> Kevin Chen <kchen <at> MIT.EDU> writes:
> 
>> 
>> On Fri, 23 Jul 2010, Ray wrote:
>> 
>>> I have implemented, thanks to the dnspython list, a simple DNS server.
>>> Here is the code: It simply responds with a TXT record. I am hosting the
>>> script as the NS server for example.com. The NS server is x.y.z.k. It
>>> works fine when I issue something like:
>>> 
>>> dig demo.example.com @x.y.z.k
>> 
>> Your DNS server is being asked for an A record, but it is responding with 
>> a TXT record, which the recursive nameserver is likely rejecting.  In the 
>> case with the CNAME, that's a legitimate response for a query for an A 
>> record.
>> 
>> --
>> Kevin Chen
>> 
> 
> Thanks Kevin for the response. I did check that too. I get the exact same 
> response when I issue 
> 
> dig demo.example.com @4.2.2.1 TXT


I see you're not setting the AA bit, and that might make some resolvers unhappy.

/Bob

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