Remove Snap Ubuntu 22.04 LTS

The first thing I did after installing Ubuntu 22.04 LTS was to remove Snap and its snap packages completely. I’m not proud of that approach as I have nothing against snap packages per se; I simply enjoy using apt (Advanced package tool). Update: A member of our community forums suggested the following: “…you could also […]

Ubuntu 22.04: Install Gnome Extensions Manager (Workaround)

Gnome Shell delivers core user interface functions for Gnome, such as switching windows and launching apps. Some of the interface elements provided by Gnome Shell include the top panel, activities overview, and notifications. Gnome Shell extensions, commonly referred to as Gnome extensions, are custom code extensions written by third-party developers that modify core UI functions […]

MySQL Performance Tuning: Tips, Scripts and Tools

With MySQL, common configuration mistakes can create severe performance problems. If you misconfigure just one of the many config parameters, it can cripple performance. Of course, the performance of MySQL is often tied to the efficiency of your MySQL queries. It’s essential to ensure that your performance issues are not due to poorly written MySQL […]

Strip Down Apache to Improve Performance & Memory Efficiency

Can you believe that it’s been more than a decade since the release of Apache 2.4?! If you haven’t replaced Apache with Nginx, then here’s a quick guide for boosting Apache’s performance using a method that’s often overlooked. Now, before we get into that, please note that I’m not claiming that Apache is faster than […]

60 Linux Networking commands and scripts

Recently, I wanted to test network throughput via command line with at least 3 tools. For the life of me, I could not remember iperf. Not being able to remember previously used command line tools is frustrating and something we can all relate to. So I created a go-to list of network tools for myself. […]

Free vs. Available Memory in Linux

At times we will need to know precisely how our Linux systems use memory. This article will examine how to use the free command-line utility to view memory usage on a Linux system. In doing so, we will clearly define the difference between free vs. available memory on Linux systems.   Free vs. Available memory […]

What to buy for your Raspberry Pi 4

Over the past year, the prices of Raspberry Pi 4 boards have skyrocketed to $200, $300 and even $400! If you don’t already have one, you may want to look into alternatives. Such as used Lenovo, Dell and HP micro and nano PCs from eBay. Currently, I’m using the ThinkCentre M73 (replaced broken link: ThinkCentre […]

Is Cloudflare Argo worth it?

Cloudflare Argo reduces network latency on average by 30% and connection errors by 27%. Traditional network technologies use static routing information, which can be slower and often use congested paths. Slow loading times and connection timeouts increase the likelihood of poor user experience. The Cloudflare company routes 20% of all internet traffic. This provides them […]

iotop command in Linux w/ examples.

This iotop command guide follows my previous 90 Linux Commands frequently used by Linux Sysadmins article. As time allows, I will continue to publish articles on the 90+ commands geared toward Linux sysadmins and Linux power users. Let’s continue this series with the iotop command. iotop is a simple top-like I/O monitor. A terminal program […]