Help on NXDOMAIN to try next forwarder in the list

Sten Carlsen stenc at s-carlsen.dk
Thu May 30 08:22:16 UTC 2013


Well you can do that.

It does not change the fact that NXDOMAIN is a DEFINITIVE answer - it
does not exist, there is no reason to look further.


On 30/05/13 9:56, Ashok Agarwal wrote:
> Sorry, its not */etc/hosts* file rather its */etc/resolv.conf*.
>
>
> On Thu, May 30, 2013 at 1:25 PM, Ashok Agarwal
> <ashokagarwal.smit at gmail.com <mailto:ashokagarwal.smit at gmail.com>> wrote:
>
>     One possible way can also be to set the number of nameservers to
>     be looked upon in the /etc/hosts file.
>
>     nameserver 8.8.8.8
>     nameserver 4.4.2.2
>     nameserver 4.1.2.2
>
>     Regards,
>     Ashok
>
>
>     On Thu, May 30, 2013 at 1:05 PM, Steven Carr <sjcarr at gmail.com
>     <mailto:sjcarr at gmail.com>> wrote:
>
>         It's not possible. NXDOMAIN is NXDOMAIN, it doesn't exist, it
>         doesn't
>         mean try another server to see if you get lucky next time.
>
>         Steve
>
>
>         On 30 May 2013 08:26, sumsum 2000 <sum2hike at gmail.com
>         <mailto:sum2hike at gmail.com>> wrote:
>         > Hi,
>         > I have the following change to be available from BIND9.
>         >
>         > I have zone forwarders as follows with BIND9 setup with
>         forward only option
>         > on a Non Authoritative DNS server
>         >
>         > zone  "mytestdomain101.com <http://mytestdomain101.com>" IN  {
>         >         type forward;
>         >         forwarders {8.8.8.8;4.2.2.1;8.8.4.4};
>         >         forward only;
>         > };
>         >
>         >
>         > If I am doing a dig on mytestdomain101.com
>         <http://mytestdomain101.com>, the first DNS server gives
>         > NXDOMAIN. In this example, say it tries 8.8.8.8 and returns.
>         I would want
>         > the other servers 4.2.2.1 and 8.8.4.4 to be tried and then
>         finally return
>         > NXDOMAIN to have the same functionality as that of the SERVFAIL.
>         >
>         > This is not currently possible and I have tried it on
>         BIND9.8.2  version.
>         > Could you please suggest if there is a way to do it.
>         >
>         > Thanks
>         > Sum2hike
>         >
>         >
>         >
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>
>
>     -- 
>     Ashok
>
>
>
>
> -- 
> Ashok
>
>
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-- 
Best regards

Sten Carlsen

No improvements come from shouting:
       "MALE BOVINE MANURE!!!"

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