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…
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….
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…
Monitoring dashboards occasionally indicate low CPU utilization (e.g., 22%) and ample free memory, yet applications may exhibit sluggishness and increased response times. This common discrepancy in Linux environments often stems from process states…
The curl command in Linux is one of those tools that looks simple on the surface but has surprising depth once you start using it regularly. Most people know it as “that command…
The strace command in Linux separates the sysadmins who guess from the ones who actually know what’s happening. When a process misbehaves, hangs, eats CPU, or refuses to start, strace shows you exactly…
Setting up a Linux server is one of the best ways to learn Linux and server management hands-on. Linux servers offer unmatched flexibility, performance, and control for hosting services, running applications, supporting production…
SELinux and AppArmor have been around for many years, but are still essential for maintaining a secure Linux environment. This article will cover how to set them up and troubleshoot these mandatory access…
This article is inspired by our LinuxCommunity.io forum discussion thread (thanks to users @tmick and @shybry747 for the feedback). Let’s walk through what Podman is and how to use it as a Docker…
Choosing a Linux server distribution for your projects can be a daunting task, especially with the many options available. This guide aims to simplify your decision-making process by highlighting the key features and…
Efficiently managing files and directories is a fundamental task in computing. It’s crucial for keeping our data organized, optimizing storage space, and facilitating smooth data transfers. In the Linux ecosystem, the gzip utility…
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….
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…
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…
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…
Nov 18, 2024 CyberPanel provides a graphical interface and various features to streamline Linux virtual private server (VPS) management. However, setting up this web hosting control panel might be tricky for beginners since…
Two years ago, one of our Linux community members discussed some reasons behind the slow adoption to upgrade to PHP 8. One member stated that it’s due to PHP compatibility issues across new…
As a Linux newbie looking for DIY projects, you have plenty to choose from. Linux is full of hands-on learning and experimentation opportunities. From virtualization to server management and security, there’s a project…
