Setting up SSH keys in the cluster

[umunipala@griffin ~]$ ssh-keygen -t rsa -C "rsa key generated july 24"
Generating public/private rsa key pair.
Enter file in which to save the key (/home/umunipala/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/umunipala/.ssh/id_rsa.
Your public key has been saved in /home/umunipala/.ssh/id_rsa.pub.
The key fingerprint is:
e3:96:48:63:7c:38:79:c6:3c:02:bb:e3:9c:1b:39:49 rsa key generated july 24
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|                 |
|    .            |
|     + =         |
|    E X S        |
|   . * X +       |
|    B . +        |
|   o = .         |
|    =.           |
+-----------------+
[umunipala@griffin ~]$

[umunipala@griffin ~]$ cd /home/umunipala/.ssh/

[umunipala@griffin .ssh]$ ls

authorized_keys  id_dsa  id_dsa.pub  id_rsa  id_rsa.pub  known_hosts

http://en.wikipedia.org/wiki/Ssh-keygen