Re: clarification on SOA

[Emanuele (aka Skull)]

On 12/1/10 2:35 PM, rams wrote:
> Hi,
> 
> I have one SOA record as follows in zone.
> 
> qa.com .   86400   IN SOA ramesh.com .
> qa.com . (
> 2009111903 ; serial
> 10800  ; refresh (3 hours)
> 3600   ; retry (1 hour)
> 2592000; expire (4 weeks 2 days)
> 300  ; minimum (1 day)
> )
> 
> I queried for non exist domain against bind. Bind is returning SOA
> record with 300 as TTL value. Is it correct? Because in my zone , SOA
> has 86400 TTL.
> 
> Please clarify me.

See RFC 2308.

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Re: clarification on SOA

[Matus UHLAR - fantomas]

On 01.12.10 19:05, rams wrote:
> I have one SOA record as follows in zone.
> 
> qa.com.   86400   IN SOA ramesh.com. qa.com. (
> 2009111903 ; serial
> 10800  ; refresh (3 hours)
> 3600   ; retry (1 hour)
> 2592000; expire (4 weeks 2 days)
> 300  ; minimum (1 day)
> )
> 
> I queried for non exist domain against bind. Bind is returning SOA record
> with 300 as TTL value. Is it correct? Because in my zone , SOA has 86400
> TTL.

it's correct, in case of NXDOMAIN responses, the TTL is set to value of SOA
minimum, which is 300 in this case.

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Re: clarification on SOA

[Karl Auer]

On Wed, 2010-12-01 at 19:05 +0530, rams wrote:
> I have one SOA record as follows in zone.
> 
> qa.com.   86400   IN SOA ramesh.com. qa.com. (
> 2009111903 ; serial
> 10800  ; refresh (3 hours)
> 3600   ; retry (1 hour)
> 2592000; expire (4 weeks 2 days)
> 300  ; minimum (1 day)
> )
> 
> I queried for non exist domain against bind. Bind is returning SOA
> record with 300 as TTL value. Is it correct? Because in my zone , SOA
> has 86400 TTL.
> 
For NXDOMAIN, the TTL returned will be the lower value of the SOA TTL
and NCACHE/MINIMUM. So in this case, 300 seconds.

See RFC mumblemumble. I know this through being comprehensively
ejumacated on this very list because I thought the SOA TTL had to be
zero...

Regards, K.

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http://www.biplane.com.au/kauer/   +61-428-957160 (mob)

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clarification on SOA

[rams]

Hi,

I have one SOA record as follows in zone.

qa.com.   86400   IN SOA ramesh.com. qa.com. (
2009111903 ; serial
10800  ; refresh (3 hours)
3600   ; retry (1 hour)
2592000; expire (4 weeks 2 days)
300  ; minimum (1 day)
)

I queried for non exist domain against bind. Bind is returning SOA record
with 300 as TTL value. Is it correct? Because in my zone , SOA has 86400
TTL.

Please clarify me.

Thanks & Regards,
ramesh
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