SSH Login Without Password

When we try to ssh one server to another server, It always require password.

With a help of OpenSSH package, We can generate authentication keys on local machine and copy public key to the remote server.

Generate a key pair on the local server

Use ssh-keygen to generate authentication keys for SSH.

$ ssh-keygen

Install your public key on the remote server

$ ssh-copy-id -i ~/.ssh/id_rsa.pub UserName@RemoteServer

Add a private key to the authentication agent on the local server

Use ssh-add to add identities to the ssh-agent – the authentication agent.

$ ssh-add

Now, you can log into the remote server via the SSH without a password.