Using SSH with Public Keys to the Digi One® and PortServer® TS Family

In Windows, use PuTTYgen to generate the keys:

• PuTTYgen is available here
• Open Puttygen
• Under Parameters, check ‘SSH-2 DSA’
• Generate the key in PuTTYgen by clicking on the Generate button.
• Do not put in a passphrase
• Cut & Paste the Public Key to "notepad" as displayed in the PuTTYgen window (do not use the "save" key in PuTTY Gen). Now save it as a "notepad" text file.
• Save the Private Key via the Save button in PuTTYgen.

 
Enter Public Key for User in the Digi

• In the Digi, go to Configuration - Users  then click on New Users
• Enter username & password
• Click on Console Management, Terminal/Terminal Emulation, or Custom Scenario (usually Console Management)
• Click on port(s) you want user to have access to
• If needed, check ‘Assign a custom menu for this user’ and then enter name
• Click the Finish button
• Once Successful, click on the newly created username
• Click on Advanced Settings
• For some Digi equipment you will need to click on ‘outgoing access to serial ports’ before going onto the next step
• Check ‘Enable SSH Public Key Authentication’
• Paste the Public Key from your previously saved “notepad” text file.

 
PuTTY

• Open Putty
• Under ‘Hostname (or IP Address)’ enter <username>@<ip address>
• On left hand side, under the Connection file, open SSH, then click on Auth
• Under ‘Private key file for authentication’ enter the file where you saved the Private Key
• On left hand side, scroll up and click on ‘Session’
• Enter the proper port number (2501 for port 1, 2502 for port 2, etc)
• Click on Open