SSH passwordless login

Step 1: Use ssh-key-gen to create public key and key on
localhost ligh@local-host$ ssh-keygen -t rsa
Enter file in which to save the key (/home/jsmith/.ssh/id_rsa) :[Enter key] 
Enter passphrase (empty for no passphrase): [Press enter key]
Enter same passphrase again: [Pess enter key]
Your identification has been saved in /home/jsmith/.ssh/id_rsa.
Your public key has been saved in /home/jsmith/.ssh/id_rsa.pub. 
The key fingerprint is: 33:b3:fe:af:95:95:18:11:31:d5:de:96:2f:f2:35:f9 
ligh@local-host

Step 2: Copy the public key to the remote host with ssh-copy-id
ligh@local-host$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]
ligh@ remote-host's password:
Now try logging into the machine, with “ssh ?remote-host’”, and check in: 
.ssh/authorized_keys to make sure we haven't added extra keys that you weren't expecting.
[Note: ssh-copy-id appends the key to the .ssh/authorized_key of the remote host.]

Step 3: Log in directly to the remote Host
ligh@local-host$ ssh 192.168.0.3
Last login: Sun Nov 16 17:22:33 2008 from 192.168.1.2 
[Note: SSH will not ask for a password.] 
ligh@remote-host$ 
[Note: You are now logged in to the remote host]