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Date:      Mon, 14 Mar 2005 22:16:03 +0100
From:      Roman Neuhauser <neuhauser@chello.cz>
To:        Jon Drews <jon.drews@gmail.com>
Cc:        FreeBSD Ports <freebsd-ports@freebsd.org>
Subject:   Re: Why does Xfce 4.2 have to query a DNS ?
Message-ID:  <20050314211603.GA4665@isis.sigpipe.cz>
In-Reply-To: <8cb27cbf0503141257618a12f0@mail.gmail.com>
References:  <8cb27cbf05031211126ca5f67d@mail.gmail.com> <20050314183452.GA13267@nowhere> <8cb27cbf050314115632893e85@mail.gmail.com> <20050314203741.GB13267@nowhere> <8cb27cbf0503141257618a12f0@mail.gmail.com>

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# jon.drews@gmail.com / 2005-03-14 13:57:31 -0700:
> On Mon, 14 Mar 2005 14:37:42 -0600, Craig Boston <craig@yekse.gank.org> wrote:
> > On Mon, Mar 14, 2005 at 12:56:03PM -0700, Jon Drews wrote:
> > > I have this:
> > >
> > > 127.0.0.1    localhost localhost.silbsd.org notebook2.silbsd.org notebook2
> > 
> > Hmm, that's really odd then.  Both getaddrinfo and gethostbyname should
> > use hosts first and then fall back on DNS if that fails.  Perhaps it's
> > querying for some other name besides your own.  Is it possible to run
> > tcpdump on the ppp interface to see what name it's trying to resolve?
> 
> 
> Here is a small bit of output from tcpdump (this is the first time I
> ever used it)
> 
> notebook2# tcpdump -vv -i tun0
> tcpdump: listening on tun0, link-type NULL (BSD loopback), capture size 96 bytes
> 13:52:12.114360 IP (tos 0x0, ttl  64, id 4333, offset 0, flags [DF],
> length: 1164) 37.denver-03rh15rt.co.dial-access.att.net.58964 > 6
> 4.233.179.106.http: P 937912026:937913150(1124) ack 2155284831 win 65535
> 13:52:12.523402 IP (tos 0x0, ttl  46, id 42128, offset 0, flags
> [none], length: 40) 64.233.179.106.http > 37.denver-03rh15rt.co.dial-a
> ccess.att.net.58964: . [tcp sum ok] 1:1(0) ack 1124 win 22122

    that's part of a http communication (that web thingy).

>  Craig, I really don't  know how to use this thing (tcpdump). I could
> read up on.

    you should. :)

-- 
How many Vietnam vets does it take to screw in a light bulb?
You don't know, man.  You don't KNOW.
Cause you weren't THERE.             http://bash.org/?255991



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