ssh hardening

Step 1. Open Terminal Window on MacBook

Step 2. Generate an ssh key

In the MacBook terminal window run the command:

$ ssh-keygen -t rsa

Step 3. Copy ssh public key to Raspberry Pi

The public key can be used on multiple Raspberry Pis

Be sure to get this correct

$ ssh-copy-id -i ~/.ssh/id_rsa.pub ♣username♣@♣hostname♣

Step 4. Restart ssh

$ sudo service ssh restart

References: