Create ssh_key

$ ssh-keygen -t dsa -C "USERNAME@shell.sf.net"
Generating public/private dsa key pair.
Enter file in which to save the key (/home/username/.ssh/id_dsa):
Created directory '/home/chacedaggers/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/chacedaggers/.ssh/id_dsa.
Your public key has been saved in /home/chacedaggers/.ssh/id_dsa.pub.
The key fingerprint is:
f3:31:a8:c6:82:18:c8:0f:dd:6b:fb:27:98:83:3d:3b CHACEDAGGERS@shell.sf.net