The Secure Shell — SSH — allows you to send secure, encrypted, communications between computers that is nearly impossible to crack. Here's how to use it in macOS.

The Termius client allows you to create SSH connections with ease and even use SSH key authentication, commands and scripts when you connect. Find out how it all works.

Image: deagreez/Adobe Stock What you’ll need to limit SSH connections How to limit concurrent SSH connections sudo nano /etc/ssh/sshd_config MaxStartups 10 #MaxSessions 10 MaxSessions 10 sudo ...