SysAdmin

The 503 service unavailable error is a HTTP error code indicating the website is temporarily unavailable. Learn more about the error and how to troubleshoot it in this tutorial.

The winget upgrade command allows users to easily upgrade all the apps on their system to the latest available version. Learn how to use the winget upgrade command by following this simple tutorial.

A text editor is an application that lets you type text. All Linux distributions come with built-in editors, but there are also other options. In this article, we review the 7 best text editors. Discover which one is best for you.

Proxy servers are commonly found on local business networks, providing an additional security layer. Among personal users, they are popular because they help increase privacy and speed. This tutorial shows how to set up a proxy on Ubuntu.

This guide will show you how to install Terraform on Windows, Linux, and macOS. Choose the section for your OS and follow the instructions.

KVM (short for Kernel-based Virtual Machine) is a Linux kernel module which enables creating and running virtual instances of other operating systems on a Linux machine. Learn how to set it up in this simple tutorial.

This tutotial shows you how to use the whoami command to find the name of the effective user on a Linux system.

The Domain Name System (DNS) translates text-based domain names to numeric IP addresses. Most networks are configured to work with DNS servers provided by the ISP. This tutorial shows you how to change DNS addresses in Ubuntu.

Node.js is a popular back-end JavaScript runtime used for creating web servers and scalable network apps. NPM is a package manager for JavaScript and the default package manager for Node.js. This tutorial will show you how to install Node.js and NPM on MacOS.

Hostname is a unique identifier of a computer on a network. This tutorial details ways in which you can change your Ubuntu 20.04 machine's hostname, using command line or GUI.