DNS primary and secondary receiveing queries at the same time

Roberto Carna robertocarna36 at gmail.com
Thu May 17 14:23:22 UTC 2018


Dear Nico, my BIND servers are authoritative....they have delegated
several zones.

2018-05-17 11:12 GMT-03:00 Nico CARTRON <nicolas at ncartron.org>:
> Hi Roberto,
>
> On 17 May 2018, at 16:06, Roberto Carna <robertocarna36 at gmail.com> wrote:
>
> Hi people, I've implemented two BIND9 servers for my company, one as
> primary public DNS server and the other as secondary public DNS
> server.
>
> I always believed that all the client queries coming from Internet go
> to the DNS primary server, and if it is down, just in this case go to
> the DNS secondary server.
>
> But it seems it is different than I believed....when I see the query
> log file in primary and secondary DNS servers, I can see queries
> coming from Internet in both servers....in other words, the two DNS
> servers are being contacted all the time.
>
> Is there any way to make DNS clients from Internet always contact my
> primary DNS server and just if it is down the clients must contact the
> secondary DNS server ???
>
>
> are those servers Authoritative, or Recursive?
> It’s not quite clear in your above explanation.
>
> Cheers,
>
> --
> Nico
>


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