Using Terminal
We can use terminal to determine what computer this email was sent from. Ask introductory
questions:
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Have you ever seen a computer hacker in a movie? Does he use a mouse and windows in his
computer? He uses a terminal!
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Why would we use terminals? Is it hard?
Step students through terminal, explaining each function and command:
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Show students how to use mkdir, rm, and touch to add and take away folders from their
desktop.
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Show students how cd and ls can take them through all the files on their computer.
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Show them how terminal can be used to put multiple folders on the desktop simultaneously.
This is why terminal can be quicker than doing things normally.
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Using terminal, show the students how to ping the computer name and then use /sbin/arp -a to
find its mac address.
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/sib/arp
computer name tells the mac address that ping found.
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Explain that the system administrators of your location have the list of mac addresses where
you are and can tell you exactly which computer sent the email