Assignment 6
SMTP Capture
I
feel that I have worked on this assignment long enough to warrant
posting it despite my lack of success in obtaining captures of SMTP
packets. I was able to send email by "manually" using SMTP and
having to add in MAIL FROM and RCPT TO among other commands. I
accomplished this by telnetting to the localhost on port 25.
I had
thought this would be a great way to generate SMTP traffic. I was
not able to telnet to localhost on shadow0, so I was also not able to
utilize tcpdump. I then generated traffic by telnetting on my
pascal account and attempting to capture the traffic by using
Wireshark. Wireshark was able to capture the traffic, but because
I connected to pascal using ssh, all of the traffic that may have
contained the SMTP packets was encrypted , thus worthless to me.
I suppose that it is a good thing to encrypt traffic, but is not
when you are trying to learn.
For now, I am throwing in the towel, but if I get some free time, I hope to come back and try further.