How to improve bind caching dns server performance

[Lyle Giese]

On 06/10/11 07:53, David Sparro wrote:
> On 6/10/2011 5:04 AM, kshitij mali wrote:
>> HI All,
>> I am repeated facing SERVFAIL error with respond to dig command .
>> but when i dig to known domian like yahoo,gmail.orkut etc then no
>> problem .
>> i think there is some perfomance issue with mycaching dns server how to
>> check the reson lookup failure
>> and how to improve the preformance .
>
> Based on your previous posts to the list, the problem is not with your
> caching server. The problems you've described are the result of bad DNS
> entries entered by the owners and operators of the domains that are
> producing the errors you see. There is nothing you can do to fix the
> errors you described.
>

In addition, you should learn how to use dig +trace for troubleshooting 
these problems.

Lyle