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Swap memory in Linux is a reserved storage space on your disk that acts as virtual memory when your system’s RAM is full. Think of it like a backup fuel tank, your computer primarily runs on RAM, but when that’s exhausted, Linux uses swap space to keep things running smoothly instead of freezing. Swap Memory in Linux: How It Works Swap c...

If your WordPress website has a lot of content, you might have noticed that the default search system sometimes feels slow or doesn’t show the most relevant results. That’s where Elasticsearch comes in. It helps you make your website search faster, smarter, and more accurate. In this guide, you’ll learn what Elasticsearch is, why ...

In today’s DevOps world, understanding Networking Basics is just as important as knowing how to write code or build automation pipelines. Whether you’re deploying microservices, managing containers, or setting up CI/CD workflows, strong networking knowledge ensures everything connects smoothly, efficiently, and securely. This detailed guide...

If you’ve ever worried about someone sneaking into your computer or server from the internet, you’re not alone. Think of your device like your home, would you ever leave your doors unlocked, especially at night? Of course not! The same logic applies to your Ubuntu system. The UFW Firewall acts like a security guard at your door, allowing only ...

When it comes to Debian vs RHEL, Linux isn’t just an operating system, it’s an entire ecosystem filled with a wide variety of distributions, each created for different needs. Among them, Debian and RHEL (Red Hat Enterprise Linux) stand tall as two of the most influential, reliable, and widely used Linux distributions. But which one should you ...

If you’ve ever worked with Linux, you’ve probably come across the term systemd. It’s one of the most important parts of modern Linux systems, helping your computer start up, manage services, and handle background tasks. But what exactly is systemd, and how can you use it to manage services easily? Let’s break it down in simple terms. W...

The internet works by transferring data from one place to another — from your computer to a server or from a website to your browser. But this doesn’t happen randomly. Every piece of data follows a set of rules known as network protocols, which define how that data should be sent, received, and verified. Two of the most common network protocol...

Security in modern DevOps environments is no longer about building strong walls—it’s about continuously verifying trust. As DevOps accelerates software delivery, traditional security methods can’t keep up. That’s where Zero Trust steps in, ensuring every access request is authenticated, authorized, and encrypted. Zero Trust has be...