[atlas] [UDM] Cannot select "recursion desired" for DNS

On Tue, Jan 08, 2013 at 10:11:25AM +0100,
 Antony Antony <antony at ripe.net> wrote 
 a message of 26 lines which said:

> It will be enabled in the next release,

OK, thanks.

> However, by default RD is enabled when querying probe's local
> resolver. 

Yes, but I wanted to test public resolvers.

> Also my experience is som resolvers ignore it; 

My experience with public resolvers does not match yours:

Google Public DNS:
without RD, serves only the data in the cache (otherwise, if not in
cache, NOERROR,ANSWER=0)

OpenDNS:
without RD, always REFUSED, even if data in the cache

Level 3:
like OpenDNS

Comodo: 
like Level 3 and OpenDNS

DNS Advantage:
without RD, always timeout, even if data in the cache

Telecomix:
like DNS Advantage

Regular Unbound:
without RD, serves only the data in the cache (otherwise, if not in
cache, REFUSED)

Regular BIND:
without RD, serves only the data in the cache (otherwise, if not in
cache, NOERROR,ANSWER=0 but with upward referral)