Re: [LUG] DNS

[John Horne <J.Horne@xxxxxxxxxxxxxx>]

On 30-Jul-2001 at 08:13:31 Simon Waters wrote:
> Jon Still wrote:
>> $TTL 6h
>> ;
>> @                       IN      SOA     ns.foo.org. postmaster.foo.org. (
>>                                 2001072401      ; serial
>>                                 1h              ; refresh
>>                                 30m             ; retry
>>                                 7d              ; expiration
>>                                 1h )            ; minimum
> 
> The last field in the SOA is negative cache time to live. An
> hour seems generous, the old default was 10 minutes. This
> field has changed meaning around the BIND 8.1 days.
>  
True, but if your DNS domain changes little then I'd say a longer negative
cache time is a good thing. We run ours at 3 hours. Except for busy servers
I'd say the time value shouldn't make too much difference anyway :-)

John.

------------------------------------------------------------------------
John Horne, University of Plymouth, UK           Tel: +44 (0)1752 233914
E-mail: jhorne@xxxxxxxxxxxxxx
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