From: Aleksandar Milivojevic <amilivojevic@pbl.ca>
To: netfilter@lists.netfilter.org
Subject: Re: Problems with connection
Date: Mon, 13 Sep 2004 16:30:29 -0500 [thread overview]
Message-ID: <41461175.6050602@pbl.ca> (raw)
In-Reply-To: <1095110328.1899.26.camel@wolfpack.ljm.dom>
Jason Opperisano wrote:
> 2) try doing a tcpdump on the outside interface and capture the packet
> data as well:
>
> tcpdump -i $OUTSIDE -s 1500 -w output.cap host $SERVER_MACHINE
>
> then open that capture file (output.cap) in something (ethereal is
> nice), and if the protocol exchanges data in clear text--you may gain a
> better grasp of what's going on...
I second that one. Looking only at the inside interface tells only one
half of the story. Ethereal also have nice feature, if one packet of
the connection is selected (say first), and than Analyze -> Follow TCP
Stream, you'll get complete data exchange (coloured as input and output).
--
Aleksandar Milivojevic <amilivojevic@pbl.ca> Pollard Banknote Limited
Systems Administrator 1499 Buffalo Place
Tel: (204) 474-2323 ext 276 Winnipeg, MB R3T 1L7
prev parent reply other threads:[~2004-09-13 21:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-13 21:01 Problems with connection Giancarlo Boaron
2004-09-13 21:16 ` Aleksandar Milivojevic
2004-09-13 21:18 ` Jason Opperisano
2004-09-13 21:30 ` Aleksandar Milivojevic [this message]
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