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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>
=== SSH Keys ===
The public key can be "shared" with other server accounts, etc and used in conjunction with your private key in order to help encrypt/de-crypt data.
The diagram displayed to the right below is shared from [http://sebastien.saunier.me/blog/2015/05/10/github-public-key-authentication.html Sébastien Saunier's blog].
It demonstrates how SSH key authentication works. It's not a complete diagram, but it helps see all the parts of ssh key authentication in one place.
[[Image:ssh_connection_explained.png|thumb|center|600px|A diagram explaining how public / Private keys work. Another term to represent this process is called '''PKI''' (Public/Private Key Infrastructure) ]]
==== Public/Private key pair ====