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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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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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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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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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…
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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,…
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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,…
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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…
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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…
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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…
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Linux Environment Variables: env, export, and /etc/environment
Linux environment variables are one of those things you interact with constantly without always realizing it. Every time you run a command, your shell checks PATH. Every time a script logs something, it…
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DistroWatch: Why Most People Misunderstand the Linux Rankings
If you spend any time in Linux forums, you’ve seen DistroWatch’s Page Hit Ranking cited as proof one distro is “more popular” than another. It isn’t. The DistroWatch Page Hit Ranking (PHR) is…
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Why VRAM Can Ruin Your Linux Desktop Experience on Thin and Light Laptops
If the Linux desktop and applications on your thin and light laptop or low-end PC feel sluggish under a busy session, the usual suspects are slow storage R/W, not enough RAM, or occasionally…
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Bash Aliases: Speed Up Your Linux Workflow (Updated with Zsh)
Every sysadmin has a set of commands they type dozens of times per day. Long ssh strings, grep pipelines, systemctl restarts, directory jumps. You type them, you forget a flag, you retype them….
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A New Home for MATE Desktop Users and Some Long Overdue Forum Updates
A few days ago I received an email from Eric Marceau, a longtime member of the ubuntu-mate.community forum, reaching out to ask whether LinuxCommunity.io would be willing to accommodate a group for MATE…
