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→Accessing Received Mail Messages on VM3 VIA IMAP
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::Note that your username is your full email address(<em>firstname.lastnameyourid@myseneca.ca</em>) and not just <em>firstname.lastnameyourid</em>.
'''Record steps, commands, and your observations in INVESTIGATION 1 in your OPS335 lab log-book'''
== INVESTIGATION 2: SETUP A CENTRALIZED MESSAGE STORE ==
#The configuration file for the Dovecot service (which is not the same thing as dovecot-lda) is: '''/etc/dovecot/dovecot.conf'''. Modify the '''protocols''' option so that Dovecot will work with IMAP connections, no POP3 or LMTP.
# Start the dovecot service, and ensure it will always start automatically when the machine boots.
# Use the '''ss''' command to confirm the service is listening, and use '''nc ''' on the '''host ''' to confirm you can connect to it.# Using You'll probably fail, so using the information gathered from '''ss''', modify the firewall on vm3 to allow IMAP connections from your local networkand try '''nc''' again. Remember Once it works, do not forget to save this change so it will still be there the next time you reboot.
#If you can connect - it's now time to do something wrong, that is allow connections to our IMAP server over an unencrypted connection.
# Edit the '''/etc/dovecot/conf.d/10-auth.conf''' file and set '''disable_plaintext_auth''' to '''no'''.
'''Depending on your professor you will either be asked to submit the lab in class, or online. Follow the appropriate set of instructions below'''
===Online Submission (Peter CallaghanAhad Mammadov's Classes only)===
Follow the instructions for lab 4b on blackboard.
===In Class Submission (Murray SaulAndrew's Classes only)sections===Students should be prepared with You may choose to:* Submit screenshots of your work on Blackboard, in which case you don'''all required commands (system information) displayed in a terminal (or multiple terminals) prior t need to come to the lab.* Or come to calling the instructor for signoff''lab, show me your work, and talk to me about it. I want to hear what you've learned and answer any questions you have.
You'''Arrange evidence (command output) for each ll get the same grade regardless of these items on how you choose to submit your screen, then ask your instructor to review them and sign off on the lab's completion:'''work.
::<span style="color:green;font-size:1.5em;">✓</span>Status and configuration of your Postfix service on vm2.
::<span style="color:green;font-size:1.5em;">✓</span>Your Thunderbird configuration.
::<span style="color:green;font-size:1.5em;">✓</span>The email you sent to your myseneca account.
::<span style="color:green;font-size:1.5em;">✓</span>Download the labcheck4b.bash checking bash shell script by issuing the command:<br><br>and run '''wget httphttps://matrixict.senecac.onsenecacollege.ca/~peterandrew.callaghan/filessmith/OPS335ops335/labcheck4b.bash'''<br><br>set execute permission and run the shell script on your '''c7host''' machine. ::*For '''Peter's classes''', follow his Online Submission instructions in Moodle.::*For '''Murray's classes''', run command (piping to the '''more''' command) and show output to instructor.
::<span style="color:green;font-size:1.5em;">✓</span>Completed Lab4b log-book notes.
==EXPLORATION QUESTIONS==
