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<li value="12">We are now going to generate a new set of public/private keys. You will be prompted at some point for a key-phrase - do not forget this key-phrase (i.e. write it down</li><li'''>Make certain that you are NOT logged in as root!). '''</li><li>To generate a keypair(public/private keys), issue the following command:<br /><b><code><span style="color:#3366CC;font-size:1.2em;">ssh-keygen</span></code></b></li>
<li>That should generate output similar to the following:<br><br></li>
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::<span style="font-family:courier">The key fingerprint is:</span><br>
::<span style="font-family:courier">93:58:20:56:72:d7:bd:14:86:9f:42:aa:82:3d:f8:e5 user1@centos2</span><br><br>
<ol><li value="1415"> After generating the keys it prompts you for the location to save the keys. The default is '''~/.ssh''' Your private key will be saved as <b>id_rsa</b> and your public key will be saved as '''id_rsa.pub'''</li>
<li>You will then be prompted for a pass-phrase. The pass-phrase must be entered in order to use your private key. Pass-phrases are more secure than passwords and should be lengthy, hard to guess and easy to remember. For example one pass-phrase that meets this criteria might be "seneca students like fish at 4:00am". Avoid famous phrases such as "to be or not to be" as they are easy to guess. It is possible to leave the pass-phrase blank but this is dangerous. It means that if a hacker were able to get into your account they could then use your private key to access other systems you use.<br><br></li>
<li>Now issue the command <b><code><span style="color:#3366CC;font-size:1.2em;">ssh-copy-id -i ~/.ssh/id_rsa.pub ops235@centos3</span></code></b></li>
