ssh DSA keys

Run the following command:

ssh-keygen -t dsa

Do not create your new key par in the dufault directory (~/.ssh/). Use a temporary directory instead. So when you see this,

Generating public/private dsa key pair.
Enter file in which to save the key (/root/.ssh/id_dsa):

enter a different filename. When the keygen asks for a pass phrase press 'enter' twice to create an empty phrase.