Firewalld is a complete firewall solution available by default on CentOS and Fedora servers. In this guide, we will cover how to set up a basic firewall for your server and show you the basics of managing the firewall...

MySQL is a powerful database management system used for organizing and retrieving data. This tutorial explains how to access the MySQL Shell, how to create and delete a new database, how to create and delete a new tab...

In this guide, we'll get a LAMP stack installed on an CentOS 7 VPS. A "LAMP" stack is a group of open source software that is typically installed together to enable a server to host dynamic websites and web apps. Thi...

The sudo command is useful for executing commands with privileges usually outside of the scope of your user. This guide will discuss how to edit the configuration file in order to customize the way sudo functions.

Iptables is the software firewall that is included with most Linux distributions by default. This cheat sheet-style guide provides a quick reference to iptables commands that will create firewall rules are useful in c...

Being able to import and export your database is an important skill to have. You can use data dumps for backup and restoration purposes, so you can recover older copies of your database in case of an emergency, or you...

Forgetting passwords happens to the best of us. If you forget or lose the root password to your MySQL or MariaDB database, you can still gain access and reset the password if you have access to the server and a sudo-e...

This tutorial shows you how to configure system services to automatically restart after a crash or a server reboot. We cover the three most common init systems in this tutorial: System V, Upstart, and systemd.

The Apache HTTP server is the most widely-used web server in the world. It provides many powerful features including dynamically loadable modules, robust media support, and extensive integration with other popular so...

MySQL is an open-source database management system. CentOS 7 prefers MariaDB, a fork of MySQL managed by the original MySQL developers and designed as a replacement for MySQL. Unless you have a specific use-case for M...

This tutorial will show you how to install Java on CentOS 7 (also 5, 6, 6.5), Fedora 20, and RHEL. Java is a popular software platform that allows you to run Java applications and applets. The installation of the fol...

This tutorial explains the first steps you need to take after creating your CentOS 7 server, including how to login with root, change the root password, create a new user, give the new user root privileges, change the...

This articles covers how to install Nginx, a web server, on a CentOS 7 virtual server. This can be done with the CentOS package installer, yum.

Docker is an application that makes it simple and easy to run application processes in a container, which are like virtual machines, only more portable, more resource-friendly, and more dependent on the host operating...

This tutorial explains how to install Apache, how to install MySQL, how to change the root MySQL password, how to install PHP, and how to see what libraries are available. LAMP stack is a group of open source software...

Here we'll install and configure OpenVPN on a CentOS 7 server. We'll also discuss how to connect a client to the server on Windows, OS X, and Linux. OpenVPN is an open-source VPN application that lets you create and j...

In this guide, we'll get a LEMP stack installed on an CentOS 7 server. A LEMP software stack is a group of open source software that is typically installed together to enable a server to host dynamic websites and web ...

This article reviews setting up and using YUM repositories on a CentOS 6 VPS.

When you first start using a fresh Linux server, adding and removing users is one of the most basic tasks that you should know how to do. In this guide, we will cover how to create user accounts, assign sudo privilege...

SSL certificates are used within web servers to encrypt the traffic between the server and client, providing extra security for users accessing your application. Let’s Encrypt provides an easy way to obtain and instal...