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 < [email protected]> 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/ > http://mneylon.tel/ > Intl. +353 (0) 59 9183072 > Locall: 1850 929 929 > Direct Dial: +353 (0)59 9183090 > Fax. +353 (0) 1 4811 763 > Twitter: http://twitter.com/mneylon > ------------------------------- > Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business Park,Sleaty > Road,Graiguecullen,Carlow,Ireland Company No.: 370845 > ------------------------------ > *From:* [email protected] [ > [email protected]] on behalf of Colm MacCárthaigh > [[email protected]] > *Sent:* 07 June 2013 17:25 > *To:* Joe Abley > *Cc:* [email protected] 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 <[email protected]> wrote: > >> Anybody from C&W/.IO here? >> >> Begin forwarded message: >> >> *From: *Martin Barry <[email protected]> >> *Subject: **[outages] .io TLD outage* >> *Date: *7 June 2013 09:13:38 EDT >> *To: *[email protected] >> >> .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. >> _______________________________________________ >> Outages mailing list >> [email protected] >> https://puck.nether.net/mailman/listinfo/outages >> >> >> >> _______________________________________________ >> dns-operations mailing list >> [email protected] >> https://lists.dns-oarc.net/mailman/listinfo/dns-operations >> dns-jobs<https://lists.dns-oarc.net/mailman/listinfo/dns-operationsdns-jobs>mailing >> list >> https://lists.dns-oarc.net/mailman/listinfo/dns-jobs >> > > > > -- > Colm > -- Colm
_______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
