Step 1: Generate first ssh key Type the following command to generate your first public and private key on a local workstation. Next provide the required input or accept the defaults. Please do not change the filename and directory location.
workstation 1 $ ssh-keygen -t rsa
Finally, copy your public key to your remote server using scp
workstation 1 $ scp ~/.ssh/id_rsa.pub user@remote.server.com:.ssh/authorized_keys
Step 2: Generate next/multiple ssh key
- Login to 2nd workstation
- Download original the authorized_keys file from remote server using scp:
workstation 2 $ scp user@remote.server.com:.ssh/authorized_keys ~/.ssh
- Now create the new pub/private key:
workstation 2 $ ssh-keygen -t rsa
- Now you have new public key. APPEND this key to the downloaded authorized_keys file using cat command:
workstation 2 $ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
- Finally upload authorized_keys to remote server again:
workstation 2 $ scp ~/.ssh/authorized_keys user@remote.server.com:.ssh/
You can repeat step 2 for each user or workstations for remote server.
Step 3: Test your setup Now try to login from Workstation 1, 2 and so on to remote server. You should not be asked for a password:
workstation 1 $ ssh user@remote.server.com
workstation 2 $ ssh user@remote.server.com