Generating SSH key pairs

1. Create the directory in which the keys are stored:
   mkdir -p ~/.ssh

2. Create the key pairs:
   ssh-keygen -t rsa

   • Generate the key pair "public/private rsa".

   • Enter the storage location of the key, e.g. /home/root/.ssh.

   • Enter the password.
     If you do not enter a password, then leave the entry empty.

   • Repeat the password.
     Your identification is stored in the following directory: /home/root/.ssh/id_rsa.
     Your public key is stored in the following directory: /home/root/.ssh/id_rsa.pub.
     The fingerprint of the key is shown as follows:
     SHA256:vN0y+nIMQ0Nb5UOBkZ8upyVa4wwf/8Z1lDg7TJcMvrg root@iot2000
     The Randomart Image of the key is:

     

3. Copy the public key with the command "ssh-copy-id" to the authorization files of the new SINUMERIK control.

4. Ensure that the example name and the IP address have been replaced:
   cat ~/.ssh/id_rsa.pub | ssh root@192.168.0.198 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys

   • The following will be displayed:

     The authenticity of host '192.168.0.198 (192.168.0.198)' can't be established.

     ECDSA key fingerprint is SHA256:KwhYZhX1APiu1K0WXUkTmzF35S9VDhqv0YcFo5/KSWg.

     Are you sure you want to continue connecting (yes/no)? yes

     Warning: Permanently added '192.168.0.198' (ECDSA) to the list of known hosts.

     DISPLAY "(null)" invalid; disabling X11 forwarding

You can find more information on key pairs at

ssh key