SysAdmin

Once you have installed a package, it may be necessary to find and remove unneeded software and dependencies. Learn how to remove software packages by using the yum and rpm commands in CentOS.

CentOS is widely popular among developers and system administrators as it offers full control over its highly customizable open-source software packages. CentOS 8 was finally released on September 24th, 2019. As this is a Linux distribution derived from Red Hat Enterprise Linux (RHEL), the CentOS team had to build an infrastructure to support the newly released RHEL 8.

This guide explains how to install VirtualBox 6.0 on CentOS 7 directly from official Oracle repositories. Get valuable insight into this open-source cross-platform virtualization software today.

The article covers the 5 most common and efficient ways to secure an SSH connection. The listed solutions go a long way in preventing malicious activity and protecting your servers.

Composer is an application that tracks dependencies for a project, allowing you to specify a set of libraries for a specific project. It identifies the versions and dependencies and installs them to the project. This guide will help you install and get started with Composer on Ubuntu 16.04

Server Blocks are a feature of the Nginx web server that allows you to host multiple websites on one server. As opposed to setting up and configuring a server for each domain, hosting a number of websites on a single machine saves both time and money. Learn how to set up Nginx server blocks and configure a local host file on CentOS 7.

Official repositories struggle to keep pace with updates and new software versions. This article provides instructions on how to overcome their limitations and install the latest version of Vim on CentOS.

Composer is an application that tracks dependencies for a project, allowing you to specify a set of libraries for a specific project. It identifies the versions and dependencies and installs them to the project. This guide will help you install and get started with Composer on CentOS 7.

The XAMPP stack is an open-source Apache distribution of a PHP development environment consisting of cross-platform software (X): Apache (A), MariaDB (M), PHP and Perl (P). In this article, you will find simple instructions on how to install the XAMPP stack on CentOS 7, as well as how to verify installation and uninstall the XAMPP package.

This phoenixNAP guide instructs how to enable and start firewalld on CentOS 7. It explains basic firewall zone concepts and teaches you how to work with default firewalld zones.