Setting up password-less SSH

From the intro:
This HOWTO is a step-by-step guide for configuring and using password-less SSH service on Linux systems and is intended for a technical audience, Linux system
administrators and security people in corporations and organizations that want to use password-less SSH service on their Linux systems.

The term “password-less” means that SSH authentication is carried out by using public and private keys. Using public/private key authentication with SSH enables SSH logins without requiring passwords interactively and this is known as SSH key-authentication.

Direct Link:
http://www.learnsecurityonline.com/Password-Less_SSH.pdf

Or
http://www.digg.com/security/Setting_up_yo...ssword_less_SSH