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→Investigation 1: SMTP
* Install postfix if it is not installed.
= Investigation 1: SMTP Postfix package =
== Perform the following steps on your VM2 (pri-dns)==
* login to your VM2 as the student user.
* Look up the man page for "qmgr", "tlsmgr", and "pickup", and find out the purpose of those processes.
== Investigation 2: The SMTP Protocol: clear text commands/responses === SMTP protocol review ==
* 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.
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== postfix main configuration filePostfix service binding: /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:
<pre>