How to Learn Ubuntu Linux For Beginners
Ubuntu is a very popular Linux distribution. Many Linux beginners want to learn it but don’t know how to start. Today we will look at how to install Ubuntu system in 2 minutes. After we install it, we can use…
David Cao
David is a Cloud & DevOps Enthusiast. He has years of experience as a Linux engineer. He had working experience in AMD, EMC. He likes Linux, Python, bash, and more. He is a technical blogger and a Software Engineer. He enjoys sharing his learning and contributing to open-source.
Mastering Ubuntu Networking: 10 Essential Commands for Your Next Interview (Expanded Edition)
Networking is a foundational skill for any Linux administrator, developer, or aspiring IT professional. For those working with Ubuntu, a deep understanding of its command-line networking tools is not just beneficial but often a prerequisite. This expanded article will delve…
2 ways to Check CPU usage in Linux
CPU usage is an important metric for CPU performance in Linux. Today we will learn how to use top and sar command to check cpu usage and what us sy ni wa hi st means. Understanding CPU usage in Linux…
Hard Links and Soft Links With Detailed Example In Ubuntu Linux
In Linux, a link is a way to reference the same file by more than one name. There are two kinds: hard links and soft links (also called symbolic links or symlinks). They look similar at first, but they behave very differently under the hood. In…
Hard Links and Symbolic Links In Ubuntu Linux
Links let you reference one file by more than one name. Linux gives you two kinds: hard links and symbolic links (symlinks, also called soft links). Both are created with the ln command, but they work very differently. This guide focuses on the ln command syntax, real use…
Troubleshooting High Load Average on Linux
When I first began managing Linux servers, one of the most perplexing metrics I encountered was the load average. At first glance, the numbers seemed abstract and elusive—what did a load average of 2.5 or 5.0 actually mean for system…
4 Steps to Install GUI on Ubuntu Server Quick Guide
In this tutorial, we will learn how to install GUI ( graphical user interface ) on Ubuntu server 20.04. We will install ubuntu-desktop in the following example. Four steps to install GUI on Ubuntu Server: What is Ubuntu? Ubuntu…
What Linux TCP “Active, Passive, and Failed Opens” Reveal About Your Server’s Health
When a Linux server feels “slow under load,” the problem is often not CPU or memory—it’s what’s happening at the TCP connection layer. Every second, the kernel counts how many connections it initiates, how many it accepts, and how many…
3 Ways to Change User Shell in Linux
On Linux a login shell is a shell given to a user upon login into their user account. Today we will look at how to change the default login shell safely for one specific user. Understanding user shell in Linux…
How to Check Disk Space in Linux (df, du, and Disk Utilization Explained)
“How do you check disk space in Linux?” is a commonly asked question in Linux job interviews — and it hides a subtlety that trips up a lot of candidates. Disk space usage and disk utilization are not the same thing: A disk…