What is Linux iowait? (Explained With Examples)
iowait (wait, wa, %iowait, wait%, or I/O wait) is often displayed by command-line Linux system monitoring tools such as top, sar, atop, and others. On its own, it’s one of many performance stats that…
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5 best Drupal hosting providers for speed, security, and scalability
Nov 10, 2025 Leonardus N. Summarize with: Drupal hosting refers to web hosting solutions optimized for websites built with the Drupal content management system (CMS). Designed for developers and businesses that need flexibility,…
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Firewalla Gold Plus vs. Ubiquiti UDM Pro Max
In the market for a multi‑gigabit firewall/router, two names come up repeatedly: Firewalla Gold Plus and Ubiquiti Dream Machine Pro Max (UDM Pro Max). Both cost around $600 USD, sit at or near…
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Linux benchmark scripts and tools
This list of Linux benchmark scripts and tools should prove helpful for quick performance checks of CPU, storage, memory, and network on Linux servers and VPS. Check each script before running it from…
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How to Upgrade ThinkPad Firmware on Linux (fwupd)
Two days ago I ran the command hostnamectl status and noticed that my laptop’s firmware date was Tue 2023-08-08. I purchased this ThinkPad T14s laptop 2 years ago. So it seems, since removing…
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Raspberry Pi Not Booting: How to Repair Micro SD Card
I have a Raspberry Pi 4 (2 GB RAM) that’s been running my UniFi Network Controller for about four years without issues. Yesterday it was unresponsive and would not boot at all. The…
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Linux Performance: Almost Always Add Swap Space – Part 2: ZRAM
In the previous article, we looked at how swap space, particularly swapping, can severely slow down Linux performance. We then tweaked Linux kernel parameters to better use server memory and avoid heavy swapping….
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I was wrong! zswap IS better than zram
Rule of thumb / TL;DR:If your system only uses swap occasionally and keeping swap demand within ~20–30% of your physical RAM as zram is enough, ZRAM is the simpler and more effective option….
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8 best web hosting for small business websites
Aug 22, 2025 Web hosting is the service that makes your website accessible on the internet. For small businesses, choosing the right hosting provider is critical – it affects your site’s speed, security,…
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10 pfSense Setup Changes to Make Post Install
Just installed pfSense? Before diving into VLANs, firewall rules, or VPN tunnels, take a few minutes to lock in these essential setup changes. These quick tweaks will boost security, improve reliability, and prevent…
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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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Learn Linux: 4 Devices to boost your Linux skills (2025)
Ready to go on a journey that will take your Linux skills to the next level and beyond what theoretical learning can? The devices in this article will give you hands-on experience and…
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5 Network Devices for work-from-home and Small Business
Over the past few years, we’ve seen a mass migration from the work office to the home office. This continues to increase the requirements for better home network security, capacity, and additional capabilities….
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Redmine tutorial: Starting and streamlining project management
Sep 19, 2024 Ariffud M. 11min Read Redmine is a versatile, open-source project management tool that helps teams simplify processes and improve collaboration. It offers powerful features like time tracking, customizable workflows, and…
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Linux Commands frequently used by Linux Sysadmins – Part 4
We are now up to part 4 of this five-part series entitled: Linux Commands frequently used by Linux Sysadmins. By the end of this series, we will cover at least 50 commands. Thus…
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Linux: ncdu and mc to manage large directories
Creating, modifying, and deleting files are everyday tasks performed in any operating system, even more so by Sysadmins, Developers, and Programmers. For the most part, these tasks are fast enough when managing a…
