[dns-operations] Fwd: [outages] .io TLD outage

[Colm MacCárthaigh]

I'm used to seeing NS TTLs in days from most TLDs, but I haven't done a
comprehensive survey - it'd be interesting. .com/.net are two days, .org is
1 day, and so on.

The negative cache time seems high too. .io's negative cache time is also
one hour. .com/.net/.org's are 15 minutes. (Though curiously this is
because the SOA TTL is 900 seconds, rather than the actual negative cache
time field).

If anyone from the .io operators are here - it would be interesting to know
if those choices are explicit. I think on the face of it, that a 2 day NS
TTL and a 15 minute negative expiry time would both have somewhat mitigated
the impact of the event and may be worth considering.


On Fri, Jun 7, 2013 at 9:47 AM, Michele Neylon :: Blacknight <
michele at blacknight.com> wrote:

>  I've no idea what is "normal", but I do know they were making changes to
> the .io registry platform in the last couple of weeks. I've no idea if that
> also impacted their DNS setup ..
>
>
>
>   --
> Mr Michele Neylon
> Blacknight Solutions
> Hosting & Colocation, Brand Protection
> http://www.blacknight.com/
> http://blog.blacknight.com/
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> Intl. +353 (0) 59  9183072
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> -------------------------------
> Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business Park,Sleaty
> Road,Graiguecullen,Carlow,Ireland  Company No.: 370845
>    ------------------------------
> *From:* dns-operations-bounces at lists.dns-oarc.net [
> dns-operations-bounces at lists.dns-oarc.net] on behalf of Colm MacCárthaigh
> [colm at allcosts.net]
> *Sent:* 07 June 2013 17:25
> *To:* Joe Abley
> *Cc:* dns-operations at lists.dns-oarc.net List
> *Subject:* Re: [dns-operations] Fwd: [outages] .io TLD outage
>
>   Their default TTLs in the parent zone seem to be just one hour ...
>
>    ;; AUTHORITY SECTION:
>   nic.io. 3600 IN NS ns1.communitydns.net.
>   nic.io. 3600 IN NS b.nic.ac.
>   nic.io. 3600 IN NS a.nic.io.
>   nic.io. 3600 IN NS b.nic.sh.
>   nic.io. 3600 IN NS ns4.nic.io.
>   nic.io. 3600 IN NS dns01.cdns.net.
>   nic.io. 3600 IN NS b.nic.io.
>
>  Does that seem low by TLD standards?
>
>  -
> Colm
>
>
> On Fri, Jun 7, 2013 at 6:41 AM, Joe Abley <jabley at hopcount.ca> wrote:
>
>> Anybody from C&W/.IO here?
>>
>> Begin forwarded message:
>>
>>  *From: *Martin Barry <marty at supine.com>
>>  *Subject: **[outages] .io TLD outage*
>>  *Date: *7 June 2013 09:13:38 EDT
>>  *To: *outages at outages.org
>>
>>  .io domains are not currently resolving.
>>
>>  Of the 7 name servers 2 have serial 1370603413 and contain no records.
>>
>>  The other 5 have serial 1370607008 and only contain records for .io
>> itself and nothing for any subdomains, at least for all I tested.
>>  _______________________________________________
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>> Outages at outages.org
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>>
>>
>>
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>
>
>
>  --
> Colm
>



-- 
Colm
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