Configuring the Password-free Login Certificate

Prerequisites

SSH password-free login from the current node has been enabled for the node to be added.

Procedure

1. Copy the private key file.

   Private key file path for the root user: /root/.ssh/id_rsa

   Private key file path for common users: /home/user/.ssh/id_rsa

   Figure 1 Private key file
   

   For the root user:

   1	cp /root/.ssh/id_rsa /home/devkit/.ssh/

2. Set the permission on the copied private key file.

   Set the owner of the copied private key file to devkit and the permission to 400.

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   cd /home/devkit/.ssh/ chown devkit:devkit id_rsa chmod 400 id_rsa

3. View the file permission.

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   ls -l

   Figure 2 File permission