[nsd-users] nsd zonefile format

[Matthijs Mekking]

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Hi Andreas,

This is according to spec. RFC 1035 says that omitted class and TTL
values are default to the last explicitly stated values. If you want the
records after the MX to have a TTL of 1d, you should add explicitly say
so; either by adding the line:

$TTL 1d

after the MX record, or by giving the TXT record an explicit TTL of 1d.

Best regards,

Matthijs

On 11/09/2010 01:42 PM, Andreas Schulze wrote:
> Hello,
> 
> I have a zonefile like this:
> 
> ### snip ###
> $TTL 1d
> 
> example.com.			SOA (
> 	.... )
> example.com.			NS	ns1.example.com.
> example.com.			NS	ns2.example.com.
> example.com.		300	MX	42 mail.example.com.
> example.com.			TXT	"v=spf1 +all"
> ns1.example.com.		A	192.0.2.1
> ns2.example.com.		A	192.0.2.1
> mail.example.com.		A	192.0.2.3
> 
> ### snap ###
> 
> Notice the intension to lower only the ttl for the mx.
> 
> The SOA and NS-Record use $TTL Valie 1d.
> But all records *after* the mx have also a TTL of 300s.
> 
> What's my fault?
> Who do I write a zonefile containing only those ttl which are different from $TTL ?
> Is there a formal definition for zonefiles?
> 
> Thanks ...
> 
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