Wireshark-users: Re: [Wireshark-users] Analyzing a "broken" FTP session
From: Martin Visser <[email protected]>
Date: Fri, 21 Aug 2009 17:48:41 +1000
Posting snippets of packet captures with reasonable problem reports are generally welcome. A lot of us here enjoy the challenge of trying interpret a stream of bytes with the hope of actually diagnosing the higher level issue that may be causing the problem.

That said, some of us do this work for a living and get paid quite a bit of money to do it, so doing it for free is only viable if it doesn't take a lot of time. Any time I respond to such requests is out of a spirit of mentoring the community and also hopefully giving myself a little confidence that I actually sometimes know what I am talking about :-)

So please post, but also understand the context of the community.

Regards, Martin

[email protected]


On Fri, Aug 21, 2009 at 12:36 PM, Chivian, John <[email protected]> wrote:
Group:

  I'm not sure if this is the correct forum for this but I am hoping to get some help identifying a problem that sometimes occurs between an FTP client and server.   (If this isn't the right forum can someone point me in the right direction?)

  I have PCAP files made on both systems using tcpdump that have captured a recent failure, but I do not have enough expertise in packet analysis or the guts of the FTP protocol to read them and draw a definitive conclusion regarding why the connection "broke".

  If someone can help I am happy to provide more information regarding the systems themselves, the network topology between them, and the trimmed PCAP files for analysis.

  Thanks in advance, JC

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John (JC) Chivian
Staff Software Engineer
Staff Unix/Linux Administrator
Corporate Information Systems
Photronics, Inc.
 
mailto:[email protected]
http://www.photronics.com
 
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