1,760
edits
Changes
→The SMTP Protocol: clear text commands/responses
! - - - Command - - -
! - - - - - - - - - - - - Response - - - - - - - - - - - -
|- style="vertical-align: top; background: none#c0c0c0"
| nc localhost 25
| 220 pri-dns.gbecker.ops ESMTP Postfix
|- style="vertical-align: top; background: #CCffCCffffff"
| HELO seneca.ops
| <br> <br> <br>
|- style="vertical-align: top; background: #FFCCCCc0c0c0"
| ELHO seneca.ops
| <br> <br> <br>
|- style="vertical-align: top; background: #ccffccffffff"
| NOOP
| <br> <br>
|- style="vertical-align: top; background: #ffccccc0c0c0"
|RSET
|<br>
|- style="vertical-align: top; background: #ccffccffffff"
|VERB
|<br>
|- style="vertical-align: top; background: #ffccccc0c0c0"
|EXPN ops535m
|<br>
|- style="vertical-align: top; background: #ccffccffffff"
|VRFY root
|<br>
|- style="vertical-align: top; background: #ffccccc0c0c0"
|VRFY nobody
|<br>
|- style="vertical-align: top; background: #ccffccffffff"
|HELP
|<br>
|- style="vertical-align: top; background: #ffccccc0c0c0"
|QUIT
|<br>
|}
== postfix main configuration file: /etc/postfix/main.cf ==
:* Login to your VM1, and run the following nc command to try to connect to the SMTP server on your VM2: