Hi all,

Having heard about recursion, is there a way of getting BIND to make recursive 
DNS requests to the A.B.C.D and E.F.G.H DNS servers?

Thanks,

Richard Thomas.


-----Original Message-----
From: bind-users-boun...@lists.isc.org 
[mailto:bind-users-boun...@lists.isc.org] On Behalf Of Matus UHLAR - fantomas
Sent: 11 December 2014 16:39
To: bind-users@lists.isc.org
Subject: Re: Question about how forwarders work

On 11.12.14 16:28, Richard Thomas wrote:
>Please could I have some advice about how the below example configuration 
>would work:
>
>forwarders { A.B.C.D; E.F.G.H; };
>
>What I wanted to achieve is that one of the IP addresses to be used as 
>a  primary DNS server and the other IP address to be used as a 
>secondary DNS  server.

BIND measures RTT for servers and uses the one that answes faster.
It ocasionally re-tries slower server, if the situation did not change.
That should result to fastest resolution. This should be the best for you.

Many people recommend doing recursion directly instead of using forwarders.
Especially for mail servers with anti-spam measures, where your forwarders may 
be ignored by some blacklists, because they send too much queries.

--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
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