Example 6-4 shows an example to set up HMC password-less communication. Example 6-4 Setting up HMC password-less communication # ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (//.ssh/id_rsa):  Created directory '//.ssh'. Enter passphrase (empty for no passphrase):  Enter same passphrase again:  Your identification has been saved in //.ssh/id_rsa. Your public key has been saved in //.ssh/id_rsa.pub. The key fingerprint is: 70:0d:22:c0:28:e9:71:64:81:0f:79:52:53:5a:52:06 root@epvioc3 The key's randomart image is: … # cd /.ssh/ # ls id_rsa id_rsa.pub # export MYKEY='cat /.ssh/id_rsa.pub' # ssh hscroot@172.16.15.42 mkauthkeys -a "$MYKEY" The authenticity of host '172.16.15.42 (172.16.15.42)' can't be established. RSA key fingerprint is b1:47:c8:ef:f1:82:84:cd:33:c2:57:a1:a0:b2:14:f0. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '172.16.15.42' (RSA) to the list of known hosts. Chapter 6. Resource Optimized High Availability  191