DNS Propagation
João Alberto Kuchnier
joao.kuchnier at gmail.com
Fri Oct 15 13:26:21 UTC 2010
Stephane,
I have three bind servers. One internal and two (master and slave) for
external queries. On master named.conf.options, slave is in forwarders
list with OpenDNS e my ISP DNS servers. This option is causing this
issues?
João K.
Em Qui, 2010-10-14 às 21:21 -0600, Stephane Bortzmeyer escreveu:
> On Thu, Oct 14, 2010 at 04:04:20PM -0300,
> João Alberto Kuchnier <joao.kuchnier at gmail.com> wrote
> a message of 148 lines which said:
>
> > Oct 14 16:00:42 ns1 named[4602]: error (connection refused) resolving
> > 'guide.opendns.com/A/IN': 200.198.101.4#53
> >
> > 200.198.101.3 -> Master
> > 200.198.101.4 -> Slave
>
> Master and Slave have a meaning only for authoritative DNS service
> (serving zones you manage). Here, you try to resolve the name
> guide.opendns.com which is probably not yours, so this is the
> recursive service, not the authoritative one. It is highly recommended
> to separate the two services (to have them on different BIND
> instances, for instance on different machines), to ease debugging.
>
> The two must have quite different setups: for the authoritative
> service, you will deny recursion, and allow the whole world to query
> your name server. For the recursive service, it is the opposite: you
> allow recursion but you limit the right to query to only your
> machines.
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