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/username/.ssh/id_rsa

     Replace username with the actual user name.

   Figure 1 Private key file
   

   If the password-free login user is the root user and the DevKit installation user is the common user test01, run the following command:

   1	cp /root/.ssh/id_rsa /home/test01/.ssh/id_rsa

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

   Set the owner of the copied private key file to the DevKit installation user and the permission to 400.

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   cd /home/test01/.ssh/ chown test01:test01 id_rsa chmod 400 id_rsa

3. View the file permission.

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   ls -l