[dns-operations] requirements for TLD servers

Alexander Mayrhofer alexander.mayrhofer at nic.at
Mon Mar 22 16:43:41 UTC 2010

> There's not much chance of that. The DNS requirements in 
> ICANN's gTLD  
> contracts are rather low: a brush from a feather rather than a  
> pummelling.

Have you looked at the new gTLD documents yet? Those are requiring 100%
uptime for the "service" (defined as at least 2 out of the set of
authoritative nameserver ip addresses have service), *plus* 99.9% of
uptime for each and every ip address per month (which is 43 minutes of

Those SLAs *include* everything, even planned maintenance - and
essentially mean that you must create an anycast-only nameserver network
(because otherwise a single DDoS attack of more than 43 minutes against
a single server would put you at risk of losing the gTLD contract with


I wouldn't call those requirements "low".


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