SysAdmin

APT (Advanced Package Tool) is a widely-used package manager for Ubuntu and other Debian-based Linux distributions. This article introduces Nala, a command-line APT frontend that aims to provide a tidier alternative to the standard apt user interface.

Debian 11 is the latest version of the popular Linux distribution. This tutorial shows how to perform a direct upgrade from Debian 10 to Debian 11.

A vCPU is a virtual central processing unit, created and used by virtual machines. This article explains the vCPU concept and shows how to calculate vCPU requirements.

The port number is a virtual concept in computer networking that provides a network identifier for a specific service or application. This article shows how to open a port in Linux and use Linux networking tools to list and test open ports.

Linux networking stack includes a wide range of network interfaces, protocols, and other components. This article focuses on sockets, an important network data-transfer mechanism used to build networked applications, implement network protocols and provide network services.

This clear-cut tutorial explains how to download and configure phpMyAdmin on Debian 11. Also, find out how to thoroughly prepare your server by installing a LAMP stack.

The ifconfig command is still used to configure network interfaces on Debian. Read this tutorial and learn how to install ifconfig on Debian and fix the "command not found" error.

This comparison article delves into the topic of how Rocky Linux differs from CentOS and whether it is a viable option to fill the gap left by CentOS.

Yarn is a tool for managing, updating, and sharing your Java code. It works through node.js, and it helps to track libraries, dependencies, and even to share solutions with other developers. In this tutorial, learn how to install Yarn on Ubuntu.

Use the diff --color command to change the color of the diff output. This guide teaches you how to compare files the easy way.