Author: Phil Pennock Date: To: Scott Neader CC: exim-users Subject: Re: [exim] SMTP command timeout on connection - how to troubleshoot
On 2012-02-22 at 09:56 -0600, Scott Neader wrote: > Regarding a packet capture on my side, I have to admit, I have never done
> it on command-line Linux before (done many on Windoze via
> Ethereal/WireShark), so I will have to research that.
tcpdump -w foo-$(date +%s).cap -s 1500 -i ethDEVICE port 25
ethDEVICE on Linux systems used to typically be eth0.
The format of the capture dump is portable and you can then open it in
WireShark on another OS. Hit Ctrl-C when you want to stop the dumping.
