How to Secure Your Linux Server with fail2ban
With fail2ban, your Linux computer automatically blocks IP addresses that have too many connection failures. It’s self-regulating security! We’ll show you how to use it.
How to Audit Your Linux System’s Security with Lynis
If you perform a security audit on your Linux computer with Lynis, it will ensure your machine is as protected as it can be. Security is everything for internet-connected devices, so here’s how to make sure yours are sa...
How to Install and Use TeamViewer on Linux
Are you tech support for your friends and family? TeamViewer makes cross-platform remote support a breeze, and it’s free for private use. Here’s how to install and use it on Linux.
Systemd Will Change How Your Linux Home Directory Works
The team behind systemd want you to adopt a new way of managing home directories. Calling it a “new way” is putting it lightly—this is a real paradigm shift for Linux. Here’s everything you need to kno...
How to Peek Inside Binary Files From the Linux Command Line
Have a mystery file? The Linux file command will quickly tell you what type of file it is. If it’s a binary file, though, you can find out even more about it. file has a whole raft of stablemates that will help you ana...
Windows 10 Is Getting Graphical Linux Apps With GPU Support
Windows 10’s Windows Subsystem for Linux is already extremely powerful, even including a built-in Linux kernel with WSL 2.0. Now, Microsoft is making it even more powerful, enabling graphical Linux desktop applications ...
How to Use tmux on Linux (and Why It’s Better Than Screen)
The Linux tmux command is a terminal multiplexer, like screen. Its advocates are many and vocal, so we decided to compare the two. Is tmux really better, or is it just a case of preferring what you know?...
Keyboard Shortcuts for YouTube: A Cheat Sheet
Google’s video website wouldn’t be complete without all sorts of useful buttons and hidden commands that aren’t immediately obvious. Use this hotkey cheat sheet to quickly navigate YouTube and gain better co...
How to Use the Linux top Command (and Understand Its Output)
The Linux top command is one of the stalwarts of Unix-like operating systems. Its utilitarian display is packed with useful information about your system’s running processes and resource usage. But, did you know it als...
How to Change Your Default Shell on Linux with chsh
Bash isn’t the only Linux shell. It’s easy to try out other shells, like Zsh, which is very popular. When you’ve found one you like, use the chsh command to make it your default shell. We’ll show you ...
What You Need to Know About Snaps on Ubuntu 20.04
Ubuntu 20.04 Focal Fossa is a fantastic release that’s been widely praised. However, the decision to change the Software Center to install snap-based applications is controversial. We’ll explain what that means fo...
How to Set Environment Variables in Bash on Linux
There’s more than one type of environment variable on Linux. Learn how to see them, create them for local and remote logins, and make them survive reboots.
How to Enable Dark Mode on Ubuntu 20.04 LTS
LUbuntu 20.04 LTS “Focal Fossa” ships with a built-in dark theme. You can activate the dark version of Ubuntu’s standard Yaru theme and get a dark GNOME desktop in just a few clicks. Here’s how....
What’s New in Ubuntu 20.04 LTS “Focal Fossa”
Canonical released Ubuntu 20.04 LTS on April 23, 2020. This Long Term Support release includes a shiny new desktop theme and dark mode. Under the hood, you’ll find an upgraded Linux kernel and a new way of installing ap...
How to Use the sed Command on Linux
It might sound crazy, but the Linux sed command is a text editor without an interface. You can use it from the command line to manipulate text in files and streams. We’ll show you how to harness its power....
How to Use the cd Command on Linux
Some Linux commands are so familiar, we don’t even notice we’re using them. The cd command for changing directories is one of these. There are some tricks that can help you become more efficient with cd—or ...
Windows 10’s File Explorer Is Getting Linux Files (and Tux)
Microsoft is testing a “Linux” option to File Explorer’s sidebar. If you have the Windows Subsystem for Linux installed, you can easily access all your Linux files in a few clicks. This change appears in Win...
How to Use bmon to Monitor Network Bandwidth on Linux
With the bmon Linux application, you can see the bandwidth usage on your network connections. However, understanding the finer details requires some detective work, so we’ve done it for you!
How to Play Local Multiplayer Games Online with Steam Remote Play Together
There’s nothing quite like the connections you make when you play video games on the couch next to your friends. However, Steam’s Remote Play Together feature allows you to play local multiplayer games online, eve...
How to Use the dig Command on Linux
The Linux dig command allows you to query DNS servers and perform DNS lookups. You can also find the domain an IP address leads back to. We’ll show you how!
How to Build Your Own Cloud File Sync with Nextcloud
Services like Dropbox make it easy for you to access your files on multiple devices. However, you might want more control over them. In less than 30 minutes, you can have your own cloud-syncing service up and running on a ser...
How to Use Linux’s man Command: Hidden Secrets and Basics
Everything you need to know about Linux is in its man pages. For example, you can search for a command to accomplish a task, even if you don’t know what it’s called. But how can you find the man pages? Here are so...
How to Use Linux’s screen Command
With the Linux screen command, you can push running terminal applications to the background and pull them forward when you want to see them. It also supports split-screen displays and works over SSH connections, even after yo...
How to Use Regular Expressions (regexes) on Linux
Wondering what those weird strings of symbols do on Linux? They give you command-line magic! We’ll teach you how to cast regular expression spells and level up your command-line skills.
How to Work with Snap Packages on Linux
When you install Linux software packages with snap, you can say goodbye to dependency hell and breaking other working applications. Snap packages were originally designed for Ubuntu, but they’re now available on a varie...
