[nsd-users] nsd zonefile format

Marc Schneiders marc at schneiders.org
Tue Nov 9 13:41:44 UTC 2010


Or, for the realy lazy, put the MX record at the bottom of the list.

On Tue, 9 Nov 2010, Matthijs Mekking wrote:

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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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