Jack Wallen offers tips for securing Linux that you can take care of in five minutes or less. SSH is a tool I use every single day to log into remote Linux servers and take care of my admin tasks.

Using a set of public/private keys to allow you to log into a remote Linux system or run commands using ssh without a password can be very convenient, but setup is just tad tricky. Here's how and a ...

There’s a command line tool for running multiple commands on multiple Linux servers at once. Jack Wallen shows you how with Parallel-SSH. If you’re an administrator of multiple Linux machines in your ...

The Linux screen command can be a life-saver when you need to ensure long-running tasks don't get killed when an SSH session is interrupted. Here's how to use it. If you’ve ever had to restart a ...

A second cursor moving beside yours, controlling the same terminal.

SSH provides remote, text-based access to Unix systems. It is a secure replacement for Telnet, with several additional features. Pre-requisites for remote access Duo: You will need to have Duo set up.