[Opendnssec-develop] Missing TTLs in zone files

Roy Arends roy at nominet.org.uk
Mon Oct 19 10:23:52 UTC 2009


opendnssec-develop-bounces at lists.opendnssec.org wrote on 10/19/2009 
12:21:45 PM:

> Ray.Bellis at nominet.org.uk 
> Sent by: opendnssec-develop-bounces at lists.opendnssec.org
> 
> 10/19/2009 12:21 PM
> 
> To
> 
> Matthijs Mekking <matthijs at NLnetLabs.nl>
> 
> cc
> 
> Opendnssec-develop at lists.opendnssec.org, Alexd at nominet.org.uk
> 
> Subject
> 
> Re: [Opendnssec-develop] Missing TTLs in zone files
> 
> 
> > I looked it up and that seems to be the proper action, according to 
RFC
> > 1034:
> > 
> > A key item in the SOA is the 86400 second minimum TTL, which means 
that
> > all authoritative data in the zone has at least that TTL, although
> > higher values may be explicitly specified.
> 
> The minimum TTL field isn't used for that any more - it's now the 
> negative caching TTL (RFC 2308).

Hi Ray,

Where do modern implementations get their 'default TTL' value from if the 
per record TTL and TTL directives are omitted?

Thanks,

Roy
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