[dns-operations] Best Resources for Deep Dive Understanding of DNS

Wed Jan 7 06:31:09 UTC 2015

Moin!

> On 04 Jan 2015, at 11:44, Alexander Neilson <alexander at neilson.net.nz> wrote:
> 
> 
> Now it may be something inside the network that specifically asks for a resolution of or against a.root-servers.net but I am seeing 11% of queries for a. and nothing in the top lists for any other root server.
Are you seeing recursions that cause the server to go to a.root-servers.net or do you see client queries for a.root-servers.net? The latter is something very common and probably caused by some misconfigured software, but so far nobody has told me which software.

So long
-Ralf