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on 10/27/04 11:31 AM, Alan Ordway at aordway@ihmc.us wrote:
Re: Problems resolving (my case is similar)
From: Scott Haneda
Date: Wednesday, October 27, 2004
Time: 5:18:21 pm
> I really think it is not a network speed issue. I have captured packets
> to/from the dns and it looks to me like the dns is sending the the ip
> address back but for some reason the browser is not accepting it.
> For example in Safari on OS X 10.3.5 I type "yahoo" and hit return and
> for following happens:
> Start time 12:21:29.890293
I am having the exact same issue, and it is driving me nuts. I don't know
where to go to troubleshoot this either.
What did you use to get the status output where you were able to see what
safari was up to?
In my case, yesterday, my DNS was resolving a large amount of lookups for
one domain. This has been fixed and I am no longer getting hammered on,
which was what I though the initial trouble was. I was averaging 5 lookups
per second, I am back down to 1-2. I have been reading and most people on a
400Mhz machine with bind are getting 400 or better lookups/s, I run 2x the
CPU so even the heavy hits of 5/sec are still nothing.
More or less, I load a domain in safari that I have not been to and it fails
after a few seconds, the second load always works out just fine.
To add some oddness to it, using dig on new domains in the terminal always
sends back a response in under 50ms. Testing against numerous other servers
shows I am performing lookups at a good speed, better then some, not as good
as others, all within a few milliseconds.
I received enough calls today from users who use my NS IP In tcp/ip that I
feel it is safe to rule out my computer and my home network as the culprit.
I am on comcast and others were on anything from SBC to earthlink. I even
tested a machine in Utah, it was also very slow and failing at loading
pages.
I have my NS at a colo where I control the entire cabinet, I do not have a
router, that service is controlled by my upstream ISP, they are
knowledgeable, I just confirmed that the DNS IP is wide open and has been,
so I can not see that being related.
Entering in anyone else's NS in my tcp/ip settings and the problem goes
away, pages start to load faster than I have ever recalled them loading
before. I have tried using other QDNS servers running OS 9, OS X, and also
those using just bind and no QDNS front end.
I really don't know what to do at this point. I am at a total loss. I
guess I can install QDNS on another machine, not load any zones since I only
want to use it as a revolver for my local machine, and see if the problem
goes away, perhaps that would be a start to figure this out.
I can plug right into the cable modem and have a direct link rather than one
that goes through a router, but since others are having this problem I
really doubt that is the case.
How do I find out what version of bind is running on my NS?
Is there some additional logging I should turn on to get a better handle on
what 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.
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