SysAdmin

As a highly popular programming language, Java is used for developing anything from lightweight mobile to desktop applications. This step-by-step guide shows you how simple it is to install Java on CentOS and Rocky Linux.

Linux stores visible and hidden files in its directories. You can display these hidden files using simple commands or the graphical user interface. Apart from showing these hidden files, this guide show you how to hide files and directories, as well as how to set a password-protection.

This phoenixNAP guide instructs how to enable and start firewalld on CentOS or Rocky Linux. It explains basic firewall zone concepts and teaches you how to work with default firewalld zones.

A LAMP stack is a set of open source software tools used for web application development. Learn how to install and set up LAMP in Ubuntu.

MongoDB allows storing different fields in different documents, without a permanently fixed data structure. To set up MongoDB on CentOS or Rocky Linux, follow this step-by-step guide and install and configure the popular NoSQL database.

Pip Installs Packages (Pip) is a package management system that simplifies the process of installing and managing software packages written in Python. All packages listed in the Python Package Index (PyPI) can be installed using Pip.

This article explains how to generate a key pair and use them to connect to a remote server via SSH.

To avoid compatibility problems when implementing new PHP-related features or debugging a website, it is useful to know the PHP version you are working with. This tutorial explains how to check the PHP version running on your website or a local machine.

This guide explains how to synchronize time with NTP servers and manually set the time, date, and timezone in Ubuntu.

The top command is a built-in Linux utility that contains useful information about your system's running processes and resource usage. Learn how to use the top command effectively.