Configure Key-based Authentication For SSH

General Information

SSH public/private key authentication for password-less logins.

Generate public/private key pair (press 'enter' when prompted to enter a passphrase to keep empty)

ssh-keygen

• By default, uses type “rsa”
• Private key in /home/<user>/.ssh/id_rsa
• Public key in /home/<user>/.ssh/id_rsa.pub

Copy from server1 to destination server2

ssh-copy-id user@192.168.1.151

Execute Command on remote system (or simply ssh login normally)

ssh user@192.168.1.151 "ls -la"