resolution problem

Matus UHLAR - fantomas uhlar at
Thu May 19 13:53:20 UTC 2016

On 18.05.16 14:10, Con Wieland wrote:
>I am having an issue resolving from 2 of my
> name servers.  I have 2 others with identical configs that resolve
> correctly.  A normal lookup shows a server fail but a +trace looks ok. 
> Any ideas how to better troubleshoot the issue?

tried web dns checkers? Some of them use to provide useful results.

>;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1057

>          172800  IN      NS
>          172800  IN      NS
>;; Received 119 bytes from in 78 ms
> 3600 IN CNAME
> 3600    IN      A
>;; Received 83 bytes from in 36 ms

often a problem of invalid NS delegation, or bad TTL (A record for a server
expires before NS record).
Matus UHLAR - fantomas, uhlar at ;
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