30 Linux Terminal Emulators
This post explores over 30 of the best Linux terminal emulators, each with unique features and functionality, catering to different types of users. This list showcases the versatility and evolution of terminal emulators…
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Best Linux Compatible Laptops
For enthusiasts, developers, and professionals who prefer the Linux operating system, choosing a Linux-compatible laptop is a pivotal decision. Here are five Linux-compatible laptops that I evaluated in my recent quest for a…
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Network Rack for Small Office (Build Guide)
Last week I walked into an empty 5 × 4 ft storage room. By the end of the week, that blank space held a fully functional network core designed to keep a small…
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What is PostgreSQL? Key features, use cases, and benefits explained
Jul 04, 2025 Every modern app deals with data – this could be in the form of user account info and tracked order details, or it could be powering product searches or visitor…
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Over 80% of all Smartphones are powered by Linux
Linux-powered smartphones are still the dominant force in the global smartphone market in 2025. While some may be surprised by this fact, Linux enthusiasts have every reason to be happy about the continued…
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Kali Linux non-root and no pen-test tools install w/ screenshots
Update: Thankfully, as of release 2020.1, Kali Linux has swapped to a privileged non-root user by default. You will now log in with the user you create during the install process and no…
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SSH command in Linux, with examples
This article is a follow-up to the previous 90 Linux Commands frequently used by Linux Sysadmins post. Every week, as time allows, I will publish articles on the 90 commands geared toward Linux sysadmins and…
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Remove Snap Ubuntu 22.04 LTS and 24.04 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…
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How to direct-install Debian SID rolling release using mini.iso (w/ screenshots)
In my tech journey, I’ve always had an affinity for the cutting-edge, the not-fully-tested waters of the Linux world. Rolling release distributions like Arch, Fedora, or even a custom-installed Kali Linux have been…
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SCP Linux – Securely Copy Files Using SCP examples
This post includes SCP examples. SCP or secure copy allows the secure transferring of files between a local host and a remote host or between two remote hosts. It uses the same authentication…
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pfSense Firewall Config: My Settings with Screenshots – Part 2
Let’s pick up right where Part 1 left off: pfSense Firewall Appliance Unboxing. This isn’t a quick-start guide. It’s my logbook from weeks of fine-tuning pfSense. Weeks, not years, so follow along and…
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My $300 pfSense Firewall Appliance – Part 1: Unboxing
For the past three years, I’ve been putting off an upgrade to my network’s firewall. During that time, I was balancing multiple priorities: maintaining uptime with multiple ISPs, managing VPN performance limitations, and…
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How to set up the LGTM stack for end-to-end observability
May 30, 2025 Ariffud M. 11min Read The LGTM stack – consisting of Loki for logs, Grafana for visualization, Tempo for tracing, and Mimir for metrics – is an open-source observability suite developed…
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sudo command in Linux with examples
The sudo command in Linux is one of the most important and widely used commands for managing system permissions. It allows you to run a command as the superuser, giving you elevated privileges…
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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…
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The best Firebase alternatives in 2025
May 22, 2025 10min Read Firebase provides comprehensive tools that help you develop and deploy applications more easily. It mainly streamlines the backend setup process by providing pre-configured services like databases and authentication…
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Diagnosing Swap Usage with smem on Linux
If you’ve ever looked at your server and wondered why it’s using swap even though plenty of RAM is available, you’re not alone. This is a common scenario on Linux systems, and it…
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MySQL Performance: Stop hoarding. Drop unused MySQL databases
Recently, I supported a client with solving MySQL performance issues. There were several areas where MySQL performance issues were addressed. One issue, however, that was overlooked before our communications was that of keeping…
