Ever wondered what all the red, green, orange, aqua and dark blue bars mean in htop? Even if you are not familiar with htop, this article will introduce you to the great Linux task manager and it’s color key….
If you’re curious about the largest items in an AWS S3 bucket, you can use the CLI to print out a list sorted by size. This can help you locate unusually large objects in the bucket which may be taking up space….
Welcome to AutoKey, the free desktop automation utility for Linux. Do you often use templates, repeat keystrokes or other repetitive tasks? If so, AutoKey is a great toolkit you do not want to miss out on!…
System running slow? If so, your system will be either Memory, CPU, or I/O bound. This article will show you a quick way to find out which of the three it is, allowing you to make informed system performance enhancements….
Ready to run Ubuntu 20.04 LTS or 20.10 on your Raspberry Pi 4, but now sure how to get it setup without using a whole set of tools? This article will help you get setup in no time!
Passwords are the keystone to account security. We’ll show you how to reset passwords, set password expiration periods, and enforce password changes on your Linux network.
Want to remotely connect to a desktop on another Linux server from your Linux desktop? Getting started is easy: this article will show you how to setup VNC and connect directly to the desktop of a remote machine!…
A swapfile is used by Linux when processes run out of memory. Rather than crashing, the process will be allowed to use a chunk of the disk, which is significantly slower, but prevents unintended out-of-memory crashes that can…
Let’s say you discover critical business data in a legacy DOS spreadsheet file, and Excel can’t read the file. If the legacy program originally ran on DOS, you might boot a copy of FreeDOS, and install the legacy program ther…
Do you want to run multiple virtual screen sessions from a single terminal console? Or avoid Internet connection drops from terminating your console session via SSH? If so, welcome the GNU Screen terminal multiplexer into yo…
Every computer user in the world sooner or later will modify a text string – either manually or automatically. Be introduced to the sed stream editor, which enables you to make bulk text modifications to strings and files….
Generating random numbers in bash seems simple to do using the $RANDOM variable, but is the variable truly that random? Find out what may be preventing you generating high quality random numbers, and more!…
That old legacy system is gone, never to be heard from again. Right? But what do you do on the fateful day that someone needs to access data that’s trapped in an old legacy application? If modern applications can’t read the d…
Ubuntu 20.10 “Groovy Gorilla” is here! Released October 22, 2020, the Gorilla is all about minor tweaks, rather than groundbreaking new features. As an interim release, it also doesn’t have long-term support. So, is it worth…
Docker Compose is a tool you can use to centrally manage the deployments of many different Docker containers. It’s an important tool for any application that needs multiple microservices, as it allows each service to easily b…
The Linux seq command generates lists of numbers in the blink of an eye. But how can this functionality be put to practical use? We’ll show you how seq might come in handy for you.
The chroot Linux utility can modify the working root directory for a process, limiting access to the rest of the file system. This is usually done for security, containerization, or testing, and is often called a “chroot jail…
Want to install Linux? It’s an easier process than you might think! You can even try Linux on your PC before you install it. If you don’t like it, just reboot and you’ll be back to Windows. Here’s how to get started with Linu…
If you fine-tune the behavior of your Bash shell with shopt, you can control over 50 settings. We’ll show you how to tailor your Linux system just the way you like it.
Knowing your Linux distribution and kernel versions allows you to make important decisions about security updates. We’ll show you how to find these, no matter which distribution you’re using.
Applying critical security updates is important to keeping your Linux server safe from potential attackers, but it can cause downtime, which isn’t good either. Live kernel patching can apply important kernel updates without t…
HAProxy is an open source load balancer, capable of balancing any TCP based service. It’s commonly used for balancing HTTP, and can help solve traffic problems on your web server. Here’s how to set it up….
As a server owner, it’s important to keep track of your network usage over time. Many hosting providers will charge for bandwidth and transmitted data, so you’ll want to keep tabs on your month-to-month usage….
Nginx and Apache combined serve over 50% of the web. But Apache has seen a decline in recent years, in favor of Nginx. Is Nginx really better, and are there any benefits to using Apache?
Wireshark is the de facto standard for analyzing network traffic. Unfortunately, it does become increasingly laggy as the packet capture grows. Brim solves this problem so well, it’ll change your Wireshark workflow….
