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Re: Problems resolving (my case is similar)

From: Simon Wright
Date: Thursday, October 28, 2004
Time: 6:27:36 am

I and my OS X users and some Windows users are having this same
problem: first hit on a new host fails, second one succeeds. I'm using
Firefox so it's not just Safari.

I hope that M&M are researching this - it's been happening on and off
for me for months/years. It seems to come and go with no discernible
pattern. Restarting clients or DNS does not seem to make a difference.
It feels like a timing issue: clients not being patient enough for the
response or the response is not completing in some way. Right now it's
very reproducible: try to go to any web site we've not visited before
and the first hit always fails. The second hit almost always succeeds.

I think I've found a short-term work around: enter your DNS twice in
your network preferences.

Reply here if it seems to work for you.

Simon

On Oct 27, 2004, at 10:18 PM, Scott Haneda wrote:

> on 10/27/04 5:15 PM, Scott Haneda at lists@newgeo.com wrote:
>
>> I am having the exact same issue, and it is driving me nuts. I don't
>> know
>> where to go to troubleshoot this either.
>
> Well, I have run the gamut of tests on this case and I am getting
> pretty
> stuck. Installed a demo copy of QDNS on a new machine on my same colo
> network and am still having no luck getting lookups to resolve on the
> first
> try in Safari.
>
> I am about to buy another copy of QDNS just to get the 30 days support
> on
> this issue, about to take this to the bind mailing list as well,
> hopefully
> they are nice to me :-)
>
> So far I have installed QDNS on a new machine, the problem persists,
> the
> problem also happens inside my colo network viewing over TB2. I don't
> seem
> to have any problems resolving local domains for which I am serving
> DNS on
> my colo network. I think I am working locally just fine, I think that
> getting out seems to be my problem.
>
> I only just learned about the +trace option for dig, and I sure hope
> this is
> promising, here is what I get when I look up a domain while ssh'd into
> a
> machine on the same subnet as my DNS machine: (several attempts,
> comments
> interspersed)
>
> crfg.org is a domain my DNS server has more than likely not seen
> before:
>
> dig crfg.org +trace
>
> ; <<>> DiG 9.2.2 <<>> crfg.org +trace
> ;; global options: printcmd
> .. 513866 IN NS D.ROOT-SERVERS.NET.
> .. 513866 IN NS E.ROOT-SERVERS.NET.
> .. 513866 IN NS F.ROOT-SERVERS.NET.
> .. 513866 IN NS G.ROOT-SERVERS.NET.
> .. 513866 IN NS H.ROOT-SERVERS.NET.
> .. 513866 IN NS I.ROOT-SERVERS.NET.
> .. 513866 IN NS J.ROOT-SERVERS.NET.
> .. 513866 IN NS K.ROOT-SERVERS.NET.
> .. 513866 IN NS L.ROOT-SERVERS.NET.
> .. 513866 IN NS M.ROOT-SERVERS.NET.
> .. 513866 IN NS A.ROOT-SERVERS.NET.
> .. 513866 IN NS B.ROOT-SERVERS.NET.
> .. 513866 IN NS C.ROOT-SERVERS.NET.
> ;; Received 244 bytes from 64.84.37.40#53(64.84.37.40) in 8 ms
>
> dig: Couldn't find server 'D.ROOT-SERVERS.NET': No address associated
> with
> nodename
>
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> So there were 1 errors in that first one, something about the D root.
> Next try was equally bad:
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> dig crfg.org +trace
>
> ; <<>> DiG 9.2.2 <<>> crfg.org +trace
> ;; global options: printcmd
> .. 513853 IN NS I.ROOT-SERVERS.NET.
> .. 513853 IN NS J.ROOT-SERVERS.NET.
> .. 513853 IN NS K.ROOT-SERVERS.NET.
> .. 513853 IN NS L.ROOT-SERVERS.NET.
> .. 513853 IN NS M.ROOT-SERVERS.NET.
> .. 513853 IN NS A.ROOT-SERVERS.NET.
> .. 513853 IN NS B.ROOT-SERVERS.NET.
> .. 513853 IN NS C.ROOT-SERVERS.NET.
> .. 513853 IN NS D.ROOT-SERVERS.NET.
> .. 513853 IN NS E.ROOT-SERVERS.NET.
> .. 513853 IN NS F.ROOT-SERVERS.NET.
> .. 513853 IN NS G.ROOT-SERVERS.NET.
> .. 513853 IN NS H.ROOT-SERVERS.NET.
> ;; Received 260 bytes from 64.84.37.40#53(64.84.37.40) in 3 ms
>
> org. 172800 IN NS TLD1.ULTRADNS.NET.
> org. 172800 IN NS TLD2.ULTRADNS.NET.
> ;; Received 108 bytes from 192.36.148.17#53(I.ROOT-SERVERS.NET) in 103
> ms
>
> crfg.org. 86400 IN NS ns2.fastdns.net.
> crfg.org. 86400 IN NS ns1.fastdns.net.
> ;; Received 73 bytes from 204.74.112.1#53(TLD1.ULTRADNS.NET) in 6 ms
>
> dig: Couldn't find server 'ns2.fastdns.net': No address associated with
> nodename
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Now I find that I can not get to the fastdns.net server in the above,
> the
> below one seems to work:
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> dig crfg.org +trace
>
> ; <<>> DiG 9.2.2 <<>> crfg.org +trace
> ;; global options: printcmd
> .. 513841 IN NS B.ROOT-SERVERS.NET.
> .. 513841 IN NS C.ROOT-SERVERS.NET.
> .. 513841 IN NS D.ROOT-SERVERS.NET.
> .. 513841 IN NS E.ROOT-SERVERS.NET.
> .. 513841 IN NS F.ROOT-SERVERS.NET.
> .. 513841 IN NS G.ROOT-SERVERS.NET.
> .. 513841 IN NS H.ROOT-SERVERS.NET.
> .. 513841 IN NS I.ROOT-SERVERS.NET.
> .. 513841 IN NS J.ROOT-SERVERS.NET.
> .. 513841 IN NS K.ROOT-SERVERS.NET.
> .. 513841 IN NS L.ROOT-SERVERS.NET.
> .. 513841 IN NS M.ROOT-SERVERS.NET.
> .. 513841 IN NS A.ROOT-SERVERS.NET.
> ;; Received 276 bytes from 64.84.37.40#53(64.84.37.40) in 4 ms
>
> org. 172800 IN NS TLD1.ULTRADNS.NET.
> org. 172800 IN NS TLD2.ULTRADNS.NET.
> ;; Received 108 bytes from 192.228.79.201#53(B.ROOT-SERVERS.NET) in 16
> ms
>
> crfg.org. 86400 IN NS ns2.fastdns.net.
> crfg.org. 86400 IN NS ns1.fastdns.net.
> ;; Received 73 bytes from 204.74.112.1#53(TLD1.ULTRADNS.NET) in 5 ms
>
> crfg.org. 86400 IN A 66.70.253.166
> crfg.org. 86400 IN NS ns2.fastdns.net.
> crfg.org. 86400 IN NS ns1.fastdns.net.
> ;; Received 121 bytes from 64.33.120.76#53(ns2.fastdns.net) in 83 ms
>
>
> Can someone help me translate what this means and possibly offer some
> insight as to why it may be happening.
>
>
>
>
> --
> -------------------------------------------------------------
> Scott Haneda Tel: 415.898.2602
> <http://www.newgeo.com> Fax: 313.557.5052
> <scott@newgeo.com> Novato, CA U.S.A.
>
>
>
>
>
--
> Simon J Wright - Chief Systems Architect
>> Knowledge Sharing Systems, Inc.
> NCSU Centennial Campus
> 940 Main Campus Drive, Suite 150
> Raleigh, NC 27606
Tel: 919-790-9895x104 <> Fax: 919-850-0851
>>> http://www.knowledgesharing.com <<<


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