Re: Reducing the 2560 negative cache default

Check,

http://cr.yp.to/djbdns/tinydns-data.html

under.

Common data lines:

     .fqdn:ip:x:ttl:timestamp:lo

.abc.xyz.school.edu:10.11.65.4:dns1.school.edu.:600: [leave blank for default]

~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~

dnsqr soa stanford.edu argus.stanford.edu

gives,

dnsq soa stanford.edu argus.stanford.edu
6 stanford.edu:
230 bytes, 1+1+4+4 records, response, authoritative, noerror
query: 6 stanford.edu
answer: stanford.edu 172800 SOA argus.stanford.edu
hostmaster.stanford.edu 2010051613 1200 600 604800 1800
authority: stanford.edu 172800 NS atalante.stanford.edu
authority: stanford.edu 172800 NS argus.stanford.edu
authority: stanford.edu 172800 NS avallone.stanford.edu
authority: stanford.edu 172800 NS aerathea.stanford.edu
additional: argus.stanford.edu 1800 A 171.64.7.115
additional: aerathea.stanford.edu 1800 A 152.3.104.250
additional: atalante.stanford.edu 1800 A 171.64.7.61
additional: avallone.stanford.edu 1800 A 171.64.7.88

~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~

Regards,


Chris.

On 16 May 2010 17:20, Fletcher Cocquyt <[email protected]> wrote:
> Hi,
> We have SOA records of the form:
> .abc.xyz.school.edu:10.11.65.4:dns1.school.edu.:600
>
> We are getting the default 2560 TTL for negative cache when we want 600
>
> What is the best practice for configuring this goal?
> (do we need a Z record?)
>
> Thanks,
> Fletcher.
>