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FusionStorage 8.0.0 Software Installation Guide 02

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Using PuTTY to Log In to a Node in Key Pair Authentication Mode

Using PuTTY to Log In to a Node in Key Pair Authentication Mode


After security hardening is performed on the SSH login mode for nodes in the system, SSH-based password authentication is disabled for login. This section describes how to use PuTTY and the required private key for authentication to log in to a target node.


  • Security hardening has been performed on the SSH login mode for the target node by:
    • Enabling the SSH key pair authentication mode and configuring the public key certificate on the node.
    • Disabling the SSH-based password authentication.
  • You have obtained the private key certificate matching the public key certificate.

    If the private key certificate is encrypted, you also need to obtain its password.


  1. Check whether PuTTY on the local PC has been used to log in to a node in key pair authentication mode.

    • If yes, go to 7.
    • If no, or you are uncertain about it, go to 2.

  2. Run PuTTY and enter the IP address of the target node and the SSH port (default value: 22).
  3. In the Category area in the left pane, choose Connection > SSH > Auth.

    The SSH authentication configuration page is displayed.

  4. Click Browse. In the dialog box that is displayed, select the obtained private key certificate and click Open. The private key certificate file name is *.ppk, as shown in Figure 5-6.

    Figure 5-6 Configuring the private key certificate

  5. In the Category area in the left pane, select Session.
  6. To facilitate subsequent access, create a customized session in Saved Sessions and click Save, as shown in Figure 5-7.

    After this step is performed, go to 8.
    Figure 5-7 Saving a session

  7. Select a saved session and click Load to load the session.
  8. Click Open to open the session.
  9. Enter the user name for logging in to the target node as prompted.

    If the private key certificate is encrypted, enter its password as prompted.

Updated: 2019-07-12

Document ID: EDOC1100081424

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