tcpdump mailing list archives

Re: viewing text of packets


From: Guy Harris <guy () netapp com>
Date: Tue, 14 Jan 2003 22:12:35 -0800

On Tue, Jan 14, 2003 at 08:39:37PM -0800, Jeff wrote:
Sorry for this newbie question but I just started using tcpdump to help
me find the problem with a mail server that is deny my password and I
can't see the actual text of the messages being sent and received. Am I
missing something obvious?

The "-X" flag, but I'm not sure that's obvious.  That'll cause the
packet data to be dumped in hex and ASCII.

In the current CVS version, there's also a "-A" flag that might be a bit
easier to read (although it still dumps the entire packet, as "-x" and
"-X" do, so there's some junk in front of the messages).

I'm assuming the mail server here is something like a POP or IMAP
server, where the messages and replies are ASCII text.  If not, there's
no text to show.
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