DNS services

[Dirk Koopman]

On Tue, 2006-05-23 at 12:57 +0100, Daniel Barlow wrote:
> On Tue, May 23, 2006 at 11:54:10AM +0100, Roger Burton West wrote:
> > So you don't want to do the work yourself, but you don't want to pay
> > anyone else to do it either?
> > 
> > Since as far as I know there's no way of inserting advertisements in DNS
> > (and if there is I don't want to know about it), I don't think it's
> > likely that anyone will offer this service any time soon.
> 
> If you control the servers, it would not be hard to add TXT "messages
> from our sponsor" in the "Additional Information" section of a DNS
> response.  Fictitious example
> 
> :; dig example.com
> [...]
> ;; ANSWER SECTION:
> example.com.            172800  IN      A       192.0.34.166
> 
> ;; ADDITIONAL SECTION:
> a.iana-servers.net.     171333  IN      A       192.0.34.43
> b.iana-servers.net.     171333  IN      A       193.0.0.236
> ads.devilspawn.com.	172800	IN	TXT	"DNS zone hosting from www.devilspawn.com"
> 
> 
> I don't know of any RFCs that say you can't do this, but my knowledge
> of DNS-related RFCs stopped about ten years ago - and i can't remember
> those.  So there may be some kind of injunction against it

Yes you can, but it doesn't profit anybody because most queries are for
A records and so your TXT record would simply sit there all unread and
unappreciated.