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<ol><li value="2">Launch your vm2, login, and open a shell terminal.</li><li>Use one of the commands above to check the status of your SSH server.></li><li>Now, issue one of the above commands to stop of the ssh server and run a command to verify that the ssh server is no longer running.</li><li>Issue one of the above commands to start the SSH server and verify that it is running.</li><li>Issue a command not listed above to confirm that the ssh service will run upon the next vm1 startup.</li></ol>
[[Image:ssh_connection_explained.png|thumb|right|600px|A diagram explaining how public / Private keys work. Another term to represent this process is called '''PKI''' (Public/Private Key Infrastructure) ]]
=== SSH Keys ===
Using the magic of public key cryptography, you can SSH to a linux machine without using a password!
Learning to perform this trick is essential in this course and in the industry in general. SSH keys are used everywhere that linux servers are used.
