Notes for video: http://www.youtube.com/watch?v=LlGL-uBSe6M ## ssh passwordless login A. generate a public key ( this will create id_rsa / id_rsa.pub files in ~/.ssh folder ) ssh-keygen # ex: prompt to comeplete Generating public/private rsa key pair. Enter file in which to save the key (/home/jsmith/.ssh/id_rsa):[Press Enter key] Enter passphrase (empty for no passphrase): [Press Enter key] Enter same passphrase again: [Pess Enter key] Your identification has been saved in /home/heoyea/.ssh/id_rsa. Your public key has been saved in /home/heoyea/.ssh/id_rsa.pub. B1. copy local pub key to server pc (method 1) # this will send pub key and create ~/.ssh/authorized_keys file on server pc # Note: ssh-copy-id command will append keys, not overwrite it ( good for multiple keys) ssh-copy-id -i ~/.ssh/id_rsa.pub heoyea-core@192.168.1.100 B2. copy local pub key to server pc (method 2) - use if ssh-copy-id command on not on your system # send keys to server scp ~/.ssh/id_rsa.pub heoyea-core@192.168.1.100:/tmp/ # login to server pc then append keys manually cat /tmp/id_rsa.pub >> ~/.ssh/authorized_keys # remove public key file from tmp folder rm /tmp/id_rsa.pub