SSH on Linux

Install SSH Server software (use sudo if not root):

apt-get install openssh-server

Create SSH key folder under the user’s home folder:

mkdir /home/username/.ssh

Set permissions on the folder:

chmod 700 /home/username/.ssh

Change directory to the folder:

cd /home/username/.ssh

Generate the SSH key pair:

ssh-keygen -t rsa

Launch SSH Session (password only mode):

ssh username@ip.or.internet.address

Since the public key is on the remote system, you could launch SSH session using the private key:

ssh -i ./id_rsa username@ip.or.internet.address