Create RSA/DSA keys using ssh-keygen utility

Generate public key using the command at your remote server:

vikram@B2 /home/vikram

$ ssh-keygen -t dsa 

Go to the folder

$ pwd

 /home/vikram/.ssh

The command "ssh-keygen -t dsa"  will generate the public key in file: id_dsa.pub

Take the public key and append this key in the Target-Server under /.ssh/authorized_keys

For Public/Private RSA Key pair:

vikram@B2 /home/vikram

$ ssh-keygen

Generating public/private rsa key pair.

Enter file in which to save the key (/home/vikram/.ssh/id_rsa):

Created directory '/home/vikram/.ssh'.

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /home/vikram/.ssh/id_rsa.

Your public key has been saved in /home/vikram/.ssh/id_rsa.pub.

The key fingerprint is: a7:00:03:16:e3:31:69:6d:cf:e0:5e:b7:e6:91:2c:80 vikram@B2

scp the generated public to the target machine under the home directory of the user "/.ssh/authorized_keys" to which you would like have a password-less login.

@:~user_name/.ssh/authorized_keys2

Next Steps:

Now when you try to ssh to the remote machine, you will be prompted for the passphrase each time.

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