How to set up passwordless SSH authentication for Ubuntu Server Your email has been sent You probably secure shell into your Linux servers throughout the day. Hopefully, you’ve set those servers ...

Out of the box, secure shell is fairly secure. With the help of ssh key authentication, you can lock down secure shell so that only specific machines can log in. Here's how.

To set up SSH key authentication, you'll need at least two Linux machines, one you log in to and one you log in from. I'll demonstrate with Pop!_OS as my desktop and Ubuntu Server as my remote server.

How to generate SSH (Secure Shell) keys in Mac OS X using the Terminal app and Command Line.