From owner-freebsd-net@FreeBSD.ORG  Wed Dec 27 04:03:20 2006
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Date: Tue, 26 Dec 2006 22:11:14 -0500 (EST)
From: alex@pilosoft.com
To: Stephan Wehner <stephanwehner@gmail.com>
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Cc: freebsd-net@freebsd.org
Subject: Re: Diagnose co-location networking problem
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On Tue, 26 Dec 2006, Stephan Wehner wrote:

> Most of the times I find the server responds nicely. But periodically it
> doesn't respond properly when accessing its webpages: Type URL in
> browser, hit return, no page appears. Try again and again and after a
> few times it appears.
DNS.

try tcpdump -n

-alex