Setting up SSH Public/Private Keys
Posted by Benjamin Close on November 7, 2008 under Computers, OpenSource | 
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Using SSH for Automatic Key authentication
SSH provides an encrypted tunnel for use with interactive and non interactive terminal sessions. It provides authentication via a number of methods including password, public/private key pairs and challenge keys.
SSH also provides authentication forwarding between machines. This feature allows a user to be able to log on to a machine without the need of typing a password. This is an extreemly strong feature as it means you can provide access to an account or even to execute a command without the need to provide someone with a password.