Negative caching SERVFAIL responses

[Peter Dambier]

Hi Arjun,

I did it and Im glad it is nolonger automatically done.

When I had a break in connectivity for a couple of minutes,
my resolver replied NXDOMAIN for everything and it would
not heal itself for more that an hour.

It would not work again until I stopped and restarted the
nameserver. When that happened more than once  day I was
glad somebody told me how to switch it off with bind 8.

"auth-nxdomain yes" will cache permanently domains that were
missing once.

Kind regards
Peter


Arjun Nair wrote:
> Hi,
> 
> Is there a way to turn on negative caching for SERVFAIL responses? RFC 2308 (DNS NCACHE) allows you to cache SERVFAIL responses for up to 5 mins. 
> 
> Thanks,
> 
> Arjun

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