Re: [Inip-discuss] Innovation in DNS

["Marc Blanchet" <[e-mail]>]

On 25 Aug 2016, at 12:01, Bauyrzhan Askar wrote:

> Hi there
>
>
>> Unlike com zone, root zone is accessed every time when DNS resolution 
>> for
>> unknown domain name is requested no matter which TLD zone the unknown
>> domain name belongs to.
>
>> Not true.  That claim ignores the effects of TTLs.
>
>> *So, increase of SLD together with TLD, increases rate of DNS 
>> resolution
>> query to root nameserver. *
>
>> So?
>
> Andrew, would you explain the effects of TLL related to that claim.

not wanting to respond for Andrew, but maybe he was referring to 
« TTL » of negative caching (RFC2308, see section 5).

Regards, Marc.

>
>
> For the purpose of clarification of the claim, TTL specifies time it 
> will
> be in cache of DNS resolver. I  point you to “request to *unknown 
> domain
> name*” and it means that there is no record data for the unknown 
> domain
> name not just on Internet users PC but also in DNS resolvers cache.
>
>
> As for the risk it brings, what kind of risk are you mentioning?
> Cybersquatting, risk of switching to AINA System or other risks?
>
>
> I want to draw your attention to the part where implementation of the 
> AINA
> System is described. As you can see for the purpose of simplicity,
> switching to AINA System can be conducted through three scenarios. (at
> least three and it is up to imagination). The first one is the one 
> which
> has no risk, and what needed is just to direct requests to AINA System 
> in
> case of unknown domain name for root nameservers.
>
>
> Many problems may rise here not from the technical aspect but rather 
> from
> political or business interest aspects. And I hopefully believe that 
> the
> discussions conducted here is out of that topics.
>
>
> Thanks
>
> On Tue, Aug 23, 2016 at 5:35 PM, Andrew Sullivan 
> <[e-mail]>
> wrote:
>
>> On Tue, Aug 23, 2016 at 05:24:21PM +0100, Bauyrzhan Askar wrote:
>>> Unlike com zone, root zone is accessed every time when DNS 
>>> resolution for
>>> unknown domain name is requested no matter which TLD zone the 
>>> unknown
>>> domain name belongs to.
>>
>> Not true.  That claim ignores the effects of TTLs.
>>
>>> *So, increase of SLD together with TLD, increases rate of DNS 
>>> resolution
>>> query to root nameserver. *
>>
>> So?
>>
>>> But the problem here is that when TLD list increases and any entry 
>>> or
>>> update made to the root zone file in master root nameserver, all 
>>> root
>>> nameservers have to be updated which in turn
>>>
>>> 1)     increases the load to network handling root nameservers. 
>>> (this may
>>> not be a big problem at the moment)
>>>
>>> 2)     increases the time for update to be finished throughout the 
>>> world
>>> because of increased number of copies of root nameservers.
>>>
>>> 3)     increases the load to any particular root nameserver, no 
>>> matter of
>>> number of copies of root nameserver, because of the increased rate 
>>> of
>>> updates.
>>
>> All of this is true of the com zone, too, so I don't see how it's
>> relevant at all.  I just don't see that this is a significant
>> improvement of the DNS, and it involves adding changes to the system
>> that present their own risks.  If we're going to undertake such 
>> risks,
>> it seems to me a tiny incremental improvement to address no actual
>> practical problem anyone has for only one zone seems like a low
>> return on the investment.
>>
>> Best regards,
>>
>> A
>>
>> --
>> Andrew Sullivan
>> [e-mail]
>>
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