ln Command in Linux: Hard Links vs. Symlinks
The ln command in Linux is one of those tools that looks simple on the surface but trips people up constantly. Hard link or symbolic link? What’s the difference? When does it actually…
-
-
AI content optimization: What it is and how to use it
Jul 08, 2026 / 9 min Read Summarize with: AI content optimization means using AI to improve your existing content’s ranking on Google and to be picked up by answer engines like ChatGPT,…
-
Linux Server Health Checks: 10 Metrics Every Sysadmin Should Monitor
Servers give you warnings before they fail. Most sysadmins performing Linux server monitoring miss them because they’re watching the wrong numbers. The metrics that actually matter are one level deeper: iowait instead of…
-
My AI Predictions, Two Years Later: The Ones That Landed
In 2023 I published 50 mind-blowing ways AI will reshape our world in 2024. This started as a personal exercise. I wanted to pin down what AI was truly capable of, so I…
-
watch Command in Linux: Real-Time Monitoring with Examples
The watch command is one of those tools you use once and immediately wonder how you lived without it. It runs any command repeatedly at a set interval and displays the output full-screen,…
-
Nginx tuning tips: HTTPS/TLS – Turbocharge TTFB/Latency
Nginx TLS tuning won’t fix a slow application, but it does cut handshake overhead and improve connection reuse, which shaves milliseconds off every HTTPS request. This guide covers the TLS, HTTP/2, and HTTP/3…
-
Linux tmpfs for Speed and Temporary Storage
Some things in Linux are hiding in plain sight. tmpfs is one of them. You use it every day without thinking about it. Every time you use /dev/shm, inspect /run, or work on…
-
What are professional email subject lines? Types and examples
Jun 05, 2026 / Bruno S. / 6 min Read Summarize with: Professional email subject lines are short phrases that communicate the purpose of a business email before the recipient opens it. Effective…
-
From TECO to Neovim: 50 Years of Text Editing on Unix and Linux
Every so often, something surfaces in the LinuxCommunity.io forums that deserves a wider audience. Generally it is a question, a solved problem, or a quick tip. But occasionally a member shares something that…
-
Linux: Guide to useradd, usermod, and groupadd
User and group management is one of those sysadmin fundamentals you touch constantly without always thinking about it. Creating a service account, locking down a shared server, adding a new team member, adjusting…
-
PHP-FPM tuning: Using ‘pm static’ for max performance
Let’s take a quick look at how best to set up PHP-FPM for high throughput, low latency, and more stable CPU and memory use. By default, most setups have PHP-FPM’s PM (process manager)…
-
Linux Network Bonding: Combine Network Interfaces
Two network interfaces are better than one. With Linux network bonding (also known as NIC bonding or link aggregation), you can combine multiple NICs into a single logical interface, gaining either increased throughput,…
-
Fail2ban on Linux: Protect Your Server from Brute-Force Attacks
Every Linux server exposed to the internet is getting hammered. SSH brute-force attempts, WordPress login floods, bad bots probing your web server. It never stops. If you check your auth logs right now,…
-
How to Remove Yoast SEO Premium Ads & Upsells
Yoast SEO is one of the most popular WordPress plugins in the world. Even the free version packs in useful features that help you optimize content, manage your sitemap, and improve how your…
-
nmap on Linux: Guide to Network Scanning and Discovery
nmap is one of those tools every sysadmin eventually needs. For auditing servers, mapping out a home lab, or troubleshooting a connectivity issue, knowing how to use nmap properly saves a lot of…
-
Linux Log Files: Guide to Reading, Searching, and Managing Logs
If something breaks on a Linux system, logs are almost always the first place to look. Yet many users treat log files as a last resort, digging through them only when things go…
-
After 20 Years of Linux Desktop, I Learned Cadence Matching
After twenty years on the Linux desktop, more than a dozen distros, multiple desktop environments, a seven-year tiling window manager phase, and one detour through whatever I thought of as the stable answer…
-
systemd Services: Writing, Managing, and Troubleshooting Unit Files on Linux
If you’ve been using Linux for any length of time, you’ve run systemctl start or systemctl enable without thinking much about what’s happening underneath. systemd is the init system on almost every major…
