Mark E. Mallett wrote:
>I've been trying to find out why a small number of nameservers seem to
>cache incorrect A records for {ns1,ns2,ns3}.ispc.org and I think I've
>tracked it down to some bad "additional results" returned by the .org
>roots when looking up domains served by those nameservers. Likely some
>old nameservers that are subject to cache poisoning are getting polluted
>by that info, which would explain why only a small fraction of people
>have problems.
>
>What I can't find out is where that glue is coming from, or more to
>the point, where to go to fix it.
>
>As an example: ask any .org root server for info about "geezer.org" .
>The "additional" section contains addresses for the geezer.org
>nameservers, with incorrect IP addresses for the ns?.ispc.org names.
>Example below.
>
>Does anybody know where I might go to repair this? i.e., to have
>the bad glue removed or at least corrected?
>
>Yours,
>-mm-
>
>% dig @tld2.ultradns.net geezer.org
>
>; <<>> DiG 8.3 <<>> @tld2.ultradns.net geezer.org
>; (1 server found)
>;; res options: init recurs defnam dnsrch
>;; got answer:
>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7500
>;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 3
>;; QUERY SECTION:
>;; geezer.org, type = A, class = IN
>
>;; AUTHORITY SECTION:
>GEEZER.ORG. 2D IN NS NS3.ISPC.ORG.
>GEEZER.ORG. 2D IN NS NS2.ISPC.ORG.
>GEEZER.ORG. 2D IN NS NS1.MV.NET.
>GEEZER.ORG. 2D IN NS NS1.ISPC.ORG.
>
>;; ADDITIONAL SECTION:
>ns3.ispc.org. 1D IN A 212.96.128.162
>ns2.ispc.org. 1D IN A 212.96.128.161
>ns1.ispc.org. 1D IN A 212.96.128.160
>
>;; Total query time: 371 msec
>;; FROM: osmium.mv.net to SERVER: 204.74.113.1
>;; WHEN: Thu Mar 24 20:52:35 2005
>;; MSG SIZE sent: 28 rcvd: 186
>
>
If you go into ispc.org's domain management, to the "Name Servers" page,
and click on the "If you want to create or modify a nameserver which is
based on" and update the IPs. This will probably fix the glue, although
I'm not 100% certain.
-- A gun isn't a weapon; it's a tool. Like a harpoon, or a hammer or an alligator. You just need more education on this subject. -- Homer Simpson
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