OT: lots of IPv6 DNS requests
Steve Bertrand
steve at ibctech.ca
Wed Jun 11 00:26:50 UTC 2008
Wojciech Puchar wrote:
>>> no it is not! that's why i'm asking.
>>
>> Oh, for heaven's sake. We all know you like to shoot off your mouth.
>> Now go back to my mail and read it ALL THE WAY THROUGH BEFORE YOU
>> ANSWER AGAIN. Jeez.
>>
> so maybe you should explain clearer because i do read what you write.
In summary, what he means is this:
You have a (perhaps legacy) DNS server running as dns3.tensor.gdynia.pl
(RRs snipped for brevity):
pearl# dig aaaa dns3.tensor.gdynia.pl
dns3.tensor.gdynia.pl. 21682 IN AAAA 2001:4070:101:2::1
...which appears to be the same IP address as your workstation.
pearl# dig AAAA wojtek.tensor.gdynia.pl
wojtek.tensor.gdynia.pl. 4732 IN AAAA 2001:4070:101:2::1
...however, any attempt to gather information from dns3. simply fails,
due to your administrative policy (named not allowing outside networks).
I'm willing to bet that you will see attempts from 2607:f118::b6 (or
::b7) in your workstation logs as rejected for AAAA lookups.
I don't see any reference to dns3. in the WHOIS, so perhaps it has been
removed recently.
Any provider who still has this dns3 server listed as a possible
authoritative name server may round-robin to it and produce the logs on
your workstation you are witnessing. It is very possible that this
server is still listed as a NS for the domain and I just didn't look
hard enough for it.
FYI (IMHO), this type of question would be better suited for
freebsd-net at . You would likely have far more eyes on your question over
there by people who focus primarily on this sort of thing.
Steve
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