ssh without password ubuntu code example

Example 1: ssh without password

a@A:~> cat .ssh/id_rsa.pub | ssh b@B 'cat >> .ssh/authorized_keys'
b@B's password:

Example 2: ssh pc without password ubuntu

# run on local pc 
sudo apt-get update
sudo apt-get -y install openssh-server

sudo systemctl start ssh

ssh-keygen -t rsa

ssh-copy-id your_username@your_server-IP