[Pkg-samba-maint] Bug#511744: how to do packet capture?

Steve Langasek vorlon at debian.org
Thu Jan 15 00:35:48 UTC 2009

On Thu, Jan 15, 2009 at 08:29:47AM +1100, Tim Richardson wrote:
> I will try to work out how to do this (make a packet capture). Is
> tcpflow the right tool?
> If it takes just a couple of minutes for you to indicate how, I'd really
> appreciate it.

On 100Mbps ethernet, running as root:

tcpdump -i <interface> -s 1500 host <server_IP> -w case-insensitive-clobber.pcap

For Gigabit Ethernet, you would need to adjust the -s option to be
guaranteed to capture the jumbo frames.

> The man page is convincing that it must be a client problem.

It could still be a server bug if samba is failing to do the right thing
when case-insensitive matching is negotiated.

Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org

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