Hi, My probe is doing lot of random case query: HitLiST-rr6.HiTlIST.sdstroWES.cO.uK IN AAAA -> SERVFAIL My named queries.log file has ~180 entries per hour. Thanks, John On Sat, 26 Dec 2020 at 20:27, Werner Wiethege <atlas@3112.org> wrote:

On Sat, 2020-12-26 at 14:16:31 +0530, Anurag Bhatia wrote:

...

Hello everyone,

There seems to be high regular request on my for hitlist-rr6.hitlist.sdstrowes.co.uk. Anyone else getting the same?

I also see lots of them, it's been going on at least since Tuesday. Mixed case AAAA queries: query failed (timed out) for hitLiST-rR6.HITLIST.SDSTROweS.Co.uk/IN/AAAA

Werner

...

Since the DNS fails and it gives SERVFAIL, wondering why it's going on

from

...

over a day now.

Thanks.

Interesting, thanks for sharing! On Sat, 26 Dec 2020 at 6:46 PM, Stephen Strowes <sds@ripe.net> wrote:

On 2020-12-26 09:46, Anurag Bhatia wrote:

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There seems to be high regular request on my for hitlist-rr6.hitlist.sdstrowes.co.uk [1]. Anyone else getting the same?

Hey, I know that guy.

These are some long-running measurements related to a study on IPv6 hitlists: https://ipv6hitlist.github.io/

Measurement IDs are:

https://atlas.ripe.net/measurements/24304869/ https://atlas.ripe.net/measurements/24304870/

Probes with IPv6 will resolve the name and then run UDP and ICMP traceroutes to the address in the answer, if they get one, much like built-in measurements 6052 and 6152. They're configured to run on the frequency of one resolution per measurement every two minutes.

I didn't investigate whether or how the DNS server was broken, but a few moments ago I restarted the process and I can see that it's handing out answers.

Cheers,

S.

...

Since the DNS fails and it gives SERVFAIL, wondering why it's going on from over a day now.

Thanks. --

Anurag Bhatia

anuragbhatia.com [2]

Links: ------ [1] http://hitlist-rr6.hitlist.sdstrowes.co.uk [2] http://anuragbhatia.com

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Anurag Bhatia