Re: Linux Kernel 2.2.20-pre10 Initial Impressions

Tim Moore (
Wed, 26 Sep 2001 12:50:00 -0700

"John L. Males" wrote:
> ...
> Ok, you make a good point in your suggestion re:
> You will probably see dns requests going out. You should check to
> make sure that you are not blocking incomming udp ports (1024-5000
> for bind, not sure about resolver...) as that would lengthen the
> response time considerably if only a few are open, and completely
> stop you if all are blocked.
> ...

strace will instantly validate or eliminate DNS lookup delays as an
issue wo having to sort through tcpdump output. In my case nscd was a
lifesaver and saved me from running local bind server.


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