Negative Caching TTL

phn at icke-reklam.ipsec.nu phn at icke-reklam.ipsec.nu
Wed Dec 17 17:47:06 UTC 2003


Jim McAtee <jmcatee at mediaodyssey.com> wrote:
> Can someone explain to me how to best use negative caching TTL.  It's n=
ot
> clear to me if setting this value in the SOA record affects how our BIN=
D
> 9.2.3 servers answer queries, or if the value is open to interpretation=
 by
> the receiving DNS client.

> $TTL 1d
> @ IN SOA ns1.modyssey.net. admin.modyssey.net. (
>                 2003101701  ; serial
>                 4h          ; refresh
>                 30m         ; retry
>                 14d         ; expire
>                 15m       ) ; negative ttl

> With the above, will older BIND servers see the default TTL for records=
 as 1
> day or 15 minutes?

1 day




--=20
Peter H=E5kanson        =20
        IPSec  Sverige      ( At Gothenburg Riverside )
           Sorry about my e-mail address, but i'm trying to keep spam out=
,
	   remove "icke-reklam" if you feel for mailing me. Thanx.


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