Unbound randomly fails to resolve names

Måns Nilsson mansaxel at besserwisser.org
Fri Jul 17 22:12:56 UTC 2020


Subject: Re: Unbound randomly fails to resolve names Date: Fri, Jul 17, 2020 at 11:40:30PM +0200 Quoting Andi via Unbound-users (unbound-users at lists.nlnetlabs.nl):
 
> As of now (23:34) two unbound instances fail to resolve cloudflare.net NS
> and anything using it as DNS service.
> 
> A "dig @127.0.0.1 cloudflare.net NS" lead to no servers could be reached,
> "dig @h.gtld-servers.net cloudflare.net NS" is working as expected. Nothing
> in the unboud log, and some minutes later all is working as expected again?
> In one case it is Ubuntu 16.04 with unbound 1.5.8, the other one unbound
> 1.6.7 both validating DNSSEC.

That was Cloudflare who proved that you can get extremely good
reliability if you have distributed services with a shared control
plane. Or maybe not. 

-- 
Måns Nilsson     primary/secondary/besserwisser/machina
MN-1334-RIPE           SA0XLR            +46 705 989668
YOU!!  Give me the CUTEST, PINKEST, most charming little VICTORIAN
DOLLHOUSE you can find!!  An make it SNAPPY!!
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