If you are running a web server with Apache on RHEL/CentOS, you may need to enable the Userdir module to allow users to create and serve their own web content. The Userdir module enables users to access their own web directories using a URL that starts with http://example.com/~username. Enabling the Apache Userdir module on RHEL/CentOS is a straightforward process that can be completed in just a few steps. In this article, we will show you how to enable the Apache Userdir module on RHEL/CentOS. Step 1: Install Apache Web Server Before you can enable the Userdir module, you need to ... Read More

Firewall is an essential component of any computer system that helps protect against unauthorized access and malicious attacks. On CentOS 7, firewalld is a popular firewall management tool that provides an easy and intuitive way to configure and manage the firewall rules. In this article, we will discuss how to enable and use firewalld on CentOS 7. Enabling Firewalld on CentOS 7 The firewalld service is not enabled by default on CentOS 7. Therefore, before we can use it, we need to enable and start the service. To enable and start the firewalld service, we need to execute the following ... Read More

PHP-FPM (FastCGI Process Manager) is a popular implementation of PHP as a FastCGI process manager. It offers significant performance improvements over the traditional PHP implementation and is widely used in high-traffic websites. Nginx is a popular web server and reverse proxy that can be used to serve PHP applications via PHP-FPM. In this article, we will discuss how to enable and monitor PHP-FPM status in Nginx. Enabling PHP-FPM Status Page PHP-FPM comes with a built-in status page that provides real-time information about the current state of PHP-FPM processes. Enabling the PHP-FPM status page in Nginx is a simple process. First, ... Read More

Root login is the ultimate level of access on any Linux system, including Ubuntu. As an Ubuntu user, it's essential to know how to enable or disable root login, as it can impact the overall security of your system. This article will guide you through the process of enabling and disabling root login on Ubuntu. What is Root Login? In Ubuntu, the root account is the administrative account that has complete control over the system. By default, Ubuntu disables root login and encourages the use of sudo, a command that allows users to execute administrative tasks without logging in as ... Read More

VirtualBox is a popular open-source virtualization software that allows users to run multiple operating systems on a single computer. One of the key features of VirtualBox is the ability to create and run 64-bit virtual machines. However, sometimes the option to enable the 64-bit version may not be available by default. In this article, we will guide you through the steps to enable the 64-bit version option in VirtualBox. Verify Your Processor Before proceeding, it's important to ensure that your processor is capable of running a 64-bit version of an operating system. To do this, open the System Information tool ... Read More

OpenVPN is a popular and widely used open-source VPN solution that allows secure remote access to your network resources. Zentyal 3.4 is a Linux distribution that provides a complete server platform for small and medium-sized businesses. In this article, we will discuss how to install and configure the OpenVPN server on a Zentyal 3.4 PDC. Step 1: Install OpenVPN The first step is to install OpenVPN on your Zentyal server. Open the terminal and type the following command − sudo apt-get update sudo apt-get install openvpn Step 2: Generate Certificates and Keys OpenVPN uses certificates and keys to authenticate ... Read More

OpenVPN is a popular open-source VPN protocol that allows secure and private communication over internet. With OpenVPN, you can create a virtual private network that can be accessed from anywhere, providing a secure and encrypted connection for remote users. In this article, we will discuss how to install and configure OpenVPN on CentOS 8/7, which is a popular Linux distribution. Prerequisites Before we proceed with installation, we need to ensure that we have following prerequisites − A CentOS 8/7 server with root access. A static public IP address. An SSH client installed on your local machine. Step 1: ... Read More

Virtual Private Network (VPN) technology is essential for secure remote access to networks and resources. OpenVPN Access Server is a popular VPN solution that provides a scalable and robust VPN infrastructure for enterprises and organizations of all sizes. In this article, we will discuss how to install and configure OpenVPN Access Server on Ubuntu 20.04. Prerequisites Before we start, we need to ensure that we have following prerequisites − A VPS or dedicated server with Ubuntu 20.04 installed Root access to server A domain name pointing to server IP address A static IP address for server Basic knowledge of ... Read More

OpenSSH is an open-source tool that is used to provide secure encrypted communication between different machines on a network. It is widely used in Linux-based systems as a way to securely access and manage remote servers. In this article, we will discuss how to install and configure OpenSSH server in Linux. Step 1: Checking if OpenSSH is Installed The first step in installation process is to check whether OpenSSH is already installed on your Linux machine or not. To do this, open your terminal and type following command − ssh -V If OpenSSH is already installed, command will display ... Read More

The Network Time Protocol (NTP) is a protocol used to synchronize time on computers within a network. Accurate timekeeping is important for many systems, including databases, email servers, and financial applications. In this article, we'll show you how to install and configure an NTP server and client on Debian. Before we begin, you should have root access to your Debian server and be familiar with command line interface. Step 1: Install NTP on Debian The first step is to install NTP on your Debian server. Open terminal and enter following command − sudo apt-get install ntp This command will ... Read More