mitm 🕵

Just a little TLS proxy for TCP connection. I created it to debug my attempt at connecting to SMTP server. So it works OK with text line protocols (telnet, openssl s_client). The goal is just to be able to see what passes through the encrypted TLS connection.
It generates self signed certificates automatically for the remote you passed as -connect. Therefore the software you test should be able to connect even if the certificate doesn't have any trusted CA in the system. As it is, the certificates are just stored in memory after being generated.

Quick start

mitm -listen "127.0.0.1:9999" -connect "mail.remoteserver.com:465"

And then run your software on 127.0.0.1:9999. It should be able to accept non valid certificate.

That's it, there are no longer detailed start.