Found 1436 Articles for Linux

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

Nginx is a popular open-source web server software that can be used as a reverse proxy, load balancer, HTTP cache, and more. It’s known for its speed and scalability, and is widely used to serve web content for high-traffic websites. If you’re running an Ubuntu 20.04 server and want to use Nginx as your web server, this guide will walk you through installation and basic configuration process. Step 1: Update system Before we begin, it’s a good idea to update system to ensure that all packages are up to date. You can do this by running following command − sudo ... Read More

Nginx is a popular web server that is known for its performance, reliability, and ease of use. It is widely used for hosting websites, serving as a reverse proxy, load balancer, and caching server. In this article, we will discuss how to install and configure Nginx on CentOS 8. Before we begin, make sure that you have root access to your CentOS 8 server. Additionally, you should have a basic understanding of Linux command line and be comfortable working with terminal-based applications. Step 1: Update System The first step is to ensure that your CentOS 8 system is up-to-date. You ... Read More

Nginx is a popular web server that is known for its high performance, scalability, and low resource usage. It is commonly used as a reverse proxy, load balancer, and HTTP cache. In this article, we will discuss how to install and configure Nginx on CentOS 7. Step 1: Update System Before we start installing any packages, it's essential to update system to latest version. To do this, run following command − sudo yum update Step 2: Install Nginx Once system is updated, we can proceed with installation of Nginx. We can install Nginx using following command − sudo yum ... Read More