[Unbound-users] Validation failure a.root-servers.net !?

W.C.A. Wijngaards wouter at nlnetlabs.nl
Mon Mar 19 15:56:08 UTC 2012


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Hi Augie,

On 03/18/2012 04:52 AM, Augie Schwer wrote:
> We started seeing these today from 1425 PST to 1532 PST :
> 
> Mar 17 14:45:27 a unbound: [7326:0] info: validation failure 
> <a.root-servers.net. A IN>: no DNSSEC records from 128.8.10.90 for
> DS root-servers.net. while building chain of trust
> 

This is a bug in unbound where it can fail to lookup DS records for
grandchild zones depending on cache contents.  Fix in svn trunk, it
looks up the nameservers of the parent domain.

A restart would likely mean you are no longer in this state; or dig
net. SOA would also fixup the cache.

Best regards,
   Wouter
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