Using SSH to connect to PSC machines

1. Start your SSH client from your local machine.
2. A connection window requesting the hostname to connect to and optionally your username and password may automatically open. If it does not, select "Open" from the File menu, and the connection window will appear.
3. For "Hostname", specify the PSC machine you wish to access, e.g., bigben.psc.edu
4. If you are using password authentication, enter your username and PSC password.

The first time that you use SSH to connect to a PSC machine, you will receive a warning that SSH has received an unknown host key from the host server. You can:

• Select "Accept once". You will be logged in, but the next time you use SSH to connect to this PSC host, you will receive the same warning.
• Select "Accept and save". You will be logged in. You should NOT receive this warning when connecting to this host via SSH again.
• Select "Cancel". Your connection to PSC will be dropped.