On 08/08/18 23:27, Dirk Gottschalk via users wrote:
No, this is the queried DNS. It is the authoritative NS for the
Domain
barracudacentral.org.
Seems to be some kind of reverse entry which does not resolve
correctly. The Source for the query is not mentioned. The authotitative
can not resolve this query (tested) and therefore the query is answered
with code NXDOMAIN.
You have to find out whi issues the query. I would disable recursion at
all except for the internal network.
Find out who queries this domains and answer witth NXDOMAIN, disabling
recursion would do thos. Blocking DNS queries if you are authotitative
for internet domains is generally a very bad idea.
Regards,
Dirk
Recursion is disabled (only allowed on localhost), which is why it logs
'connection refused'. How do I find out who's making the query (using
bind 9.11.4)?