lame-servers: error (FORMERR) resolving [something]
marka at isc.org
Tue Jan 22 15:04:47 UTC 2013
In message <20130122142136.GA21967 at fantomas.sk>, Matus UHLAR - fantomas writes:
> On 22.01.13 11:18, Daniele wrote:
> >My router doesn't maintain a DNS cache, so it must be my IPS's fault.
> >The last questions, if it's possible: what happens when my 'named' starts
> >an iterative query? Does it arrive to the real root-server (first of all),
> it should, but it appears that it does not. your ISP seems to beintercepting
> those messages. Ask your ISP how to turn it off.
> >or is it processed by some other cache-server on the path? And why 'named'
> >doesn't "understand" the responses from these cache-servers?
> in your case it's getting non-authoritative responses, but with recursion
> allowed. Both are unexpected so named complains.
As I said named doesn't get the answers it needs. If you ask a
recursive server non-recursive queries it will refer you to the
best set of nameserve it knows about.
When you have a "transparent" intercepting DNS recursive server
named just gets referrals for any question that it doesn't have a
cached answer for.
The intercepting server is expecting to see queries with "rd=1".
Named makes queries with "rd=0".
> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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Mark Andrews, ISC
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