SysAdmin

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.

The dmesg utility allows you to inspect the kernel ring buffer and check for errors during system startup. This tutorial shows how to use the dmesg command.

Docker is an increasingly popular software package that creates containers for application development. Essentially, it creates a uniform interface so that any application running on it is compatible with most operating systems. Developing in Docker also helps speed up applications, since it shares the kernel and other resources.