On 1-Aug-06, at 2:21 PM, Manuel Bouyer wrote:
>> Alternately, is there some proxy that will listen for DNS on
>> udp and tcp and ship the requests upstream via tcp?
>
> Hum, I don't think it's possible at all to do name resolution over  
> TCP.
> In nameserver daemons, TCP is only used for synchronisation between
> servers of the same zone (zone tranfers).

That was my first thought as well but from resolver(3):

      RES_USEVC      Use TCP connections for queries instead of UDP  
datagrams.

<shrug>