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→Review the SMTP Protocol
== Review the SMTP Protocol ==
:* As a regular user on VM2, execute the commands given in the "Command" column and record the output in the corresponding "Response" column for future reference. Do not proceed if the first command does not establish a connection to the SMTP port on the local host.
{| class="wikitable" cellspacing="0" width="90%" cellpadding="5" border="1" style="text-align: left; vertical-align: top; border-spacing: 2px; border: 1px solid darkgray"
|+ SMTP command / Response
| nc localhost 25
| 220 pri-dns.gbecker.ops ESMTP Postfix
|- style="vertical-align: top; background: #f9f9f9CCffCC"
| HELO seneca.ops
| <br> <br> <br>
|- style="vertical-align: top; background: none#FFCCCC"
| ELHO seneca.ops
| <br> <br> <br>
|- style="vertical-align: top; background: #f9f9f9ccffcc"
| NOOP
| <br> <br>
|- style="vertical-align: top; background: #ffcccc"
|RSET
|<br>
|- style="vertical-align: top; background: #ccffcc"
|VERB
|<br>
|- style="vertical-align: top; background: #ffcccc"
|EXPN ops535m
|<br>
|- style="vertical-align: top; background: #ccffcc"
|VRFY root
|<br>
|- style="vertical-align: top; background: #ffcccc"
|VRFY nobody
|<br>
|- style="vertical-align: top; background: #ccffcc"
|HELP
|<br>
|- style="vertical-align: top; background: #ffcccc"
|QUIT
|<br>
|}
# smtp commands/responses