QuickTip: Passwordless login to localhost on Ubuntu

Make sure you installed openssh with following command:

sudo apt-get install openssh-server

If you have not generated an ssh keypair on your client, type

ssh-keygen -t dsa

In your $HOME/.ssh directory, create a file authorized_keys if not existing:

~/.ssh: touch authorized_keys
~/.ssh: chmod 600 authorized_keys


Copy the public key into the authorized_keys file:

~/.ssh: cat id_dsa.pub >> authorized_keys


You should be ready to go now using “ssh localhost”