Master Linux Bash History with historyctl, HISTFILE, and Shortcuts
DistroWatch ran a poll last month asking readers what the default shell is on their main distro. Bash took 412 votes. zsh got 30, fish 33. The winning answer, with 1,257 votes and…
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Linux swap Commands: Create and Manage Swap Files/Partitions
Swap space is one of those topics that over the years, I’ve been able to understand how to get the best of it slowly over time and mostly by getting it wrong first….
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How to Set Up Hibernation on Linux (Swap Done Right)
I recently reinstalled my main desktop from scratch: Debian testing via Kali underneath (read first before judging) and XFCE on top. One of the reasons I keep coming back to XFCE is its…
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Linux Kernel Parameters Tuning for Better Performance
This morning I sat down to update my Kali workstation running XFCE4, and instead of a quick sudo apt update && sudo apt full-upgrade -y I ended up reinstalling from scratch. Took about…
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A Guide to Linux /proc Filesystem
Most Linux users know that /proc exists. Fewer actually use it. But /proc is one of the most useful diagnostic tools on your entire system, and it requires zero extra packages. /proc is…
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A Collection of Useful WordPress Must-Use (MU) Plugins
If you’ve been building WordPress sites for a while you probably have a folder of code snippets you copy into every new project. I know I do. Mine has been growing for years….
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Linux nameservers and DNS Resolution
DNS resolution on Linux is one of those things that works silently until it doesn’t. Then suddenly you’re staring at “Temporary failure in resolving” errors and wondering why a perfectly healthy server can’t…
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Linux ssh-keygen: Set Up SSH Key Authentication the Right Way
Password-based SSH login is convenient. It’s also one of the fastest ways to get a server compromised. Stand up a VPS with a public IP and password auth left on, then tail the…
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netcat (nc) Command in Linux, with Examples
The nc command, short for netcat, is one of those tools that looks simple at first and keeps surprising you the longer you use it. It reads and writes data across network connections…
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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…
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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,…
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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…
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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…
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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,…
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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…
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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…
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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…
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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…
