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
This is a detailed example to learn the difference between hard links and soft links in Linux. Create two files: $ touch foo; touch bar Enter some Data into them: $ echo “Cat” > foo $ echo “Dog” > bar…
Hard Links and Symbolic Links In Ubuntu Linux
Hard links and symbolic links are very confusing for Linux beginners. Today we will look at the differences between these two links. Hard Links In Linux By default, every file has a single hard link that gives the file its…
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…
Linux Performance: TCP active/passive/failed connection openings
TCP connection status is a key metric to troubleshooting TCP related network issues. We collect four basic connection status to help you understand what these metrics mean. From these metrics, we can tell that the issue happens from server-side or…
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…
2 ways to Check Disk space in Linux
How to check disk space is a commonly asked question during a Linux job interview. Disk space usage and disk utilization are different in Linux. Disk space usage means how much percent of space we use on the disk. Disk…