I've been using Linux for what seems like forever. Over the years, I've noticed that I use the command line less and less, because the GUIs have just gotten so much better. Even still, there are ...

I'm working on some scripts that execute on various servers, and I'm trying to consolidate them into one. The problem is that I need to run remote commands but can't ...

How to View Your SSH Keys in Linux, macOS, and Windows Your email has been sent There will be times when you need to actually view your SSH certificates on Linux. Why? For example, you need to add a ...

OpenBSD has recently stressed to us the value of key rotation by their use of “Signify” distribution release signatures. We have realized that SSH keys should also rotate, to reduce the risk of ...

It's story time here in the Paranoid Penguin. Don't worry—the story is a preface to the nuts-and-bolts sort of stuff you've come to expect in LJ. In fact, there are so many nuts and bolts to play with ...

Linux built-ins are commands that are built into the shell, much like shelves that are built into a wall. You won’t find them as stand-alone files the way standard Linux commands are stored in ...

Commands that provide help are essential. Here's a look at some of the help you can get from the Linux system itself. Even after you’ve used Linux for a while, you will still find yourself needing ...

A new OpenSSH unauthenticated remote code execution (RCE) vulnerability dubbed "regreSSHion" gives root privileges on glibc-based Linux systems. OpenSSH is a suite of networking utilities based on the ...

This article is reprinted from the book A Practical Guide to Linux Commands, Editors, and Shell Programming 3rd edition, with permission of the author and publisher ...

The Android ConnectBot application is an SSH client for Android devices. The app can be downloaded from the Android Market, and it allows a user to secure-shell into a Linux environment. Because ...