<div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Message: 5 Date: Sun, 07 Jan 2007 12:05:08 +0100 From: Jhair Tocancipa Triana < <a href="mailto:jhair.tocancipa@gmail.com">jhair.tocancipa@gmail.com</a>> Subject: Re: monitor TCP communication To: <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Message-ID: < <a href="mailto:87ac0vumfv.fsf@mandala.my-fqdn.de">87ac0vumfv.fsf@mandala.my-fqdn.de</a>> Content-Type: text/plain; charset=us-ascii Marco Mandl writes: > I can't get evolution to work with my IMAP server. I want to see what's > actually happening. So I want to monitor / log the detailed traffic on a > certain port - some sort of sniffing. You can use ngrep[1]. For example the following shows what is happening when I read your message headers from my news server. You can adjust host and port to match your IMAP host and port to get the information you want. # ngrep -d any host <a href="http://80.91.229.5">80.91.229.5</a> and port 119 interface: any filter: (ip or ip6) and ( host <a href="http://80.91.229.5">80.91.229.5</a> and port 119 ) #</blockquote><div> As far as sniffing goes, there are two tools that I know of for the job... one is Wireshark and the other is tcpdump. Wireshark is a GUI and tcpdump is a command line tool. Look in the repos. Happy sniffing. Danny Colligan </div> </div>