Setting up an SSH client on an AIX or Linux host
You can prepare the Secure Shell (SSH) client on an AIX or Linux host.
Before you begin
- IBM AIX operating systems
- For IBM® AIX 5L for POWER, versions 5.1, 5.2, 5.3, and AIX® version 6.1 for IBM POWER architecture, you can obtain the OpenSSH client from the bonus packs, but you also must obtain its prerequisite, OpenSSL, from the IBM AIX toolbox for Linux® applications for IBM Power Systems. For AIX 4.3.3, you can obtain the software from the AIX toolbox for Linux applications.
- Linux operating systems
- The OpenSSH client is installed by default on most Linux distributions.
About this task
Authentication to the system generally requires the use of a password, but if there is no password you can use a key pair. Use these steps to set up an RSA key pair on the AIX or Linux host and the clustered system:
Results
To authenticate using an SSH key, use the following command:
ssh -i full_path_to_key username@my_systemWhere
my_system is the name of the system IP,
username@my_system is the user name that you also log into the system with,
and full_path_to_key is the full path to the key file that
was generated in the previous step. Authenticate to the system using a SVC_usernameusername and password.
(If you require command-line access without using a password, SSH keys can be used.) The system
determines which user is logging in from the key the user is using.
Note: You can omit
-i
full_path_to_key if you configure the SSH client to use the key file
automatically.If you use the Secure Shell (SSH) to log into the system, use the password defined for accessing the GUI. You can also use RSA-based private key authentication.
For more information, see Connecting to the CLI with OpenSSH.