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Define a Great GNU screen Profile Using .screenrc

screen, the Linux utility which allows you to start a ‘screen’ inside a terminal, is by default a little under-configured. Learn how to create a great screen profile which is loaded automatically each time you use screen….

Roel Van de Paar Mar 12th, 2021

Set Up a Test Server on Raspberry Pi

The Raspberry Pi started out as an inexpensive device to help students learn about computing, but the Raspberry Pi also makes for an inexpensive test server. With a server operating system on a Raspberry Pi, you can quickly s…

Jim Hall Mar 2nd, 2021

Bash Process Termination Hacks

When developing multi-threaded Bash code, managing server processes, or creating process watchdogs, one of the main challenge is usually to correctly, efficiently and accurately terminate existing Bash processes. This article…

Roel Van de Paar Jan 29th, 2021

Securing a New Windows Server

When working with a new Windows Server, securing it against attackers is one of the first things you will want to do. A default Windows Server configuration is not inherently locked down and leaves important protection open…

Mike Sherman Dec 17th, 2020

How Do SSL Certificates Secure the Web?

SSL certificates are issued to protect important traffic between websites and users, so that attackers can’t intercept sensitive data. Let’s take a look at how SSL certificates work on the web!

Mike Sherman Dec 16th, 2020

How to Rename Screenshots in Linux

Many desktop Linux systems save screenshots with names like Screenshot from 2020-11-29 18-57-51.png. Often, what you really needed was to rename the files to something more obvious like webinar1.png, webinar2.png, and so on. …

Jim Hall Dec 9th, 2020

How to Compress and Decompress Files Using tar in Linux

Tar is more then just an archiving utility: tar comes with some great builtin features, which let you compress and decompress files, at the same time as archiving them. Learn all about it in this article and more!…

Roel Van de Paar Dec 4th, 2020

Parsing HTML in Bash

I have a process where I need to copy all the images from a web page. I used to run this process with xmllint, which will process an XML or HTML file and print out the entries you specify. But when my server host provider upg…

Jim Hall Dec 3rd, 2020

What You Need To Know About HTTP/3

HTTP/3 is the next generation of the HTTP protocol. It’s powered by QUIC, which replaces TCP at the transport layer and cuts down on the number of round trips a client must make to establish a connection….

Anthony Heddings Nov 30th, 2020

The Linux System Information Tool inxi

inxi, the free and open source command line based system information tool, can provide you with a plethora of hardware & software information, in a modular and efficient output format. Ideal for end users, and DevOps, sup…

Roel Van de Paar Nov 25th, 2020

How to Install and Use Terminator, the Terminal Multiplexer

Welcome to Terminator, an interesting name for the world’s most advanced and fully featured terminal multiplexer. A terminal multiplexer allows you to run one-to-many terminal sessions from within one or more windows, in an o…

Roel Van de Paar Nov 18th, 2020

How Fast is Your CPU, and How Does It Stack Up To Others?

Ever noticed how paper and flyer based computer sales ads focus on the speed of the processor? The truth is, the speed is only a single factor in overall CPU performance! Discover how fast your CPU really is….

Roel Van de Paar Nov 17th, 2020

Color Bars in htop – What Do They Mean?

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….

Roel Van de Paar Nov 11th, 2020

System Slow? How to See If Linux is Memory, CPU, or IO Bound

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….

Roel Van de Paar Nov 9th, 2020

How to Quickly Setup a Raspberry Pi 4 with Ubuntu 20.04 or 20.10

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!

Roel Van de Paar Nov 6th, 2020

How to Connect to a Linux Computer with VNC Across the 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!…

Roel Van de Paar Nov 3rd, 2020

How to Create and Enable a Swapfile At the Linux Command Line

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…

Roel Van de Paar Nov 2nd, 2020

How to mount a QEMU virtual disk image

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…

Jim Hall Oct 29th, 2020

How to Use screen Terminal Multiplexer in Linux

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…

Roel Van de Paar Oct 28th, 2020

How to use QEMU to boot another OS

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…

Jim Hall Oct 23rd, 2020

What is a NoSQL Database, and What Are They Good For?

A NoSQL database is any kind of database that breaks away from the traditional design of SQL. NoSQL databases like the document-based MongoDB have become more popular in recent years. What’s all the hype about?…

Anthony Heddings Oct 12th, 2020

Getting Started with the Windows Admin Center

Originally launched in 2017 as Project Honolulu, Windows Admin Center (WAC), or WAC as it became known, has gained lots of functionality and features to make managing your servers, clusters, and Windows 10 PCs that much easie…

Adam Bertram Oct 8th, 2020

5 Ways to Secure & Protect Sensitive Data on Your Server

Server security is vital to survival in today’s world. Protecting your server from hackers armed with the newest exploits is a never-ending job, but there are a few steps you can take to catch most of the attacks coming your …

Mike Sherman Oct 7th, 2020

How to Set Up an HAProxy Load Balancer

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….

Anthony Heddings Sep 23rd, 2020

Apache vs. Nginx: Which Web Server Is the Better Choice?

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?

Anthony Heddings Sep 18th, 2020

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