Strange DNS problem

[Mark Andrews]

Thanks

> On 13 Jun 2019, at 1:17 am, Rune Hassel <rune.hassel at raisoft.com> wrote:
> 
> Hi!
> 
> This problem should now be completely resolved.
> 
> Regards
> Rune Hassel
> 
> 
> -----Original Message-----
> From: Mark Andrews <marka at isc.org> 
> Sent: Tuesday, June 11, 2019 6:08 AM
> To: Jukka Pakkanen <jukka.pakkanen at qnet.fi>
> Cc: Stephane Bortzmeyer <bortzmeyer at nic.fr>; cet1 at cam.ac.uk; bind-users at isc.org; hostmaster at datatower.fi
> Subject: Re: Strange DNS problem
> 
> You solve that by complaining to the operators of the servers that their DNS servers mis-implement DNS COOKIE (RFC 7873) and could they request a fix from their DNS vendor.
> 
> Not that they make things easy to contact them.  No email in whois.  Just a PO box and a phone number and I don’t intend to call it from here.
> 
> name...............: DATATOWER AB
> register number....: 0708753-2
> address............: PB 144
> address............: 67101
> address............: KOKKOLA
> country............: Finland
> phone..............: +358 20 7789 564
> holder email.......: 
> 
> https://datatower.fi is just a login form with a bad CERT (for mail.datatower.fi).
> 
> Mark
> 
>> On 11 Jun 2019, at 4:36 am, Jukka Pakkanen <jukka.pakkanen at qnet.fi> wrote:
>> 
>> Yeah, another advertising company turned to an ISP... 
>> 
>> Solved *our* problem now by including the suggested server clause for both of their broken servers, to our servers.  Of course does not solve the real problem, the broken servers of theirs.
>> 
>> Thanks for help.
>> 
>> Jukka
>> 
>> -----Original Message-----
>> From: Stephane Bortzmeyer <bortzmeyer at nic.fr>
>> Sent: 10. kesäkuuta 2019 20:01
>> To: Jukka Pakkanen <jukka.pakkanen at qnet.fi>
>> Cc: cet1 at cam.ac.uk; bind-users at isc.org
>> Subject: Re: Strange DNS problem
>> 
>> On Mon, Jun 10, 2019 at 05:43:02PM +0000,  Jukka Pakkanen <jukka.pakkanen at qnet.fi> wrote  a message of 58 lines which said:
>> 
>>> Then, unfortunately our nameservers won't resolve ns.kpk.fi either.
>> 
>> Same authoritative name server, same problem. See my email.
>> 
>> % dig @ns.datatower.fi. NS kpk.fi.
>> 
>> ;; Warning: Client COOKIE mismatch
>> 
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> 
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742              INTERNET: marka at isc.org
> 
> 

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka at isc.org