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CentOS Articles
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How to Install and Configure OpenVPN Server in CentOS 8/7?
OpenVPN is a popular open-source VPN protocol that enables secure and private communication over the internet. With OpenVPN, you can create a virtual private network accessible from anywhere, providing encrypted connections for remote users. This tutorial covers installing and configuring OpenVPN server on CentOS 8/7 systems. Prerequisites Before proceeding with the installation, ensure you have the following prerequisites − A CentOS 8/7 server with root access A static public IP address An SSH client installed on your local machine Basic knowledge of Linux command line Step 1 − Install OpenVPN Server First, install ...
Read MoreHow to Enable Apache Userdir Module on RHEL/CentOS?
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 format like http://example.com/~username. Enabling the Apache Userdir module on RHEL/CentOS is a straightforward process that involves installation, configuration, and security considerations. This article will guide you through the complete setup process. Prerequisites and Installation Step 1: Install Apache Web Server Before enabling the Userdir module, ensure Apache web server is installed on ...
Read MoreHow To Enable HTTPS for Varnish Cache using Hitch on CentOS/RHEL 8?
In today's world of internet security, enabling HTTPS on your website is crucial to ensure the privacy and safety of your users' data. One way to achieve this is by using Varnish Cache and Hitch, a lightweight TLS proxy, to offload SSL/TLS processing from Varnish. In this article, we will guide you through the process of enabling HTTPS for Varnish Cache using Hitch on CentOS/RHEL 8. Prerequisites Before we begin, ensure that you have the following − A CentOS/RHEL 8 server Root access to the server Varnish Cache and Hitch installed A valid SSL/TLS certificate ...
Read MoreHow To Configure PostgreSQL 12 Streaming Replication in CentOS 8?
PostgreSQL Streaming Replication continuously streams Write-Ahead Log (WAL) data from a primary (master) node to standby (slave) nodes, creating near-real-time database copies for high availability and fault tolerance. Master Read/Write WAL Slave 1 Slave 2 Read-only Read-only Master Node Configuration 1. Enable WAL Archiving Edit ...
Read MoreHow to Configure CentOS Local Yum Repository?
Yum repository is a central database of software that is used for installation/upgrade of packages on a Red Hat/CentOS based Linux server. This repository includes software that are used by system as well as for user level programs. An administrator can set-up a custom local yum repository instead of using the default ones provided by the OS for several reasons like: to provide normal or specialized software packages possibly in a restricted network environment; to maintain version levels across a set of servers; to optimize network bandwidth usage; to adhere to organization policy for maintaining security or possibly a combination ...
Read MoreHow to Install VirtualBox on CentOS?
VirtualBox is an open-source, cross-platform virtualization tool by Oracle which allows us to create and run multiple operating systems simultaneously on a single physical machine. As a Type-2 Hypervisor, VirtualBox is installed on top of an operating system such as Windows, Linux or Mac and provides both headless interface and GUI (Graphical User Interface) for creating and managing virtual machines. Installing VirtualBox Step-by-step process for installing VirtualBox on a CentOS 9 machine is as follows: Initially, check if your system supports virtualization with the command below: $ lscpu | grep -i virtualization Virtualization type: full $ In case, there’s ...
Read MoreHow to Monitor MySQL_MariaDB Databases using Netdata on CentOS 8?
In today's data-driven world, monitoring the performance and health of databases is crucial for ensuring the smooth operation of applications and the overall efficiency of your infrastructure. When it comes to monitoring MySQL or MariaDB databases on CentOS 8, Netdata emerges as a powerful and user-friendly tool. Netdata provides real-time insights into various metrics and performance indicators, allowing you to proactively identify bottlenecks, optimize resource utilization, and ensure the reliability of your database environment. In this blog post, we will explore how to set up and configure Netdata to monitor MySQL/MariaDB databases on CentOS 8. We will walk you through ...
Read MoreHow to Install Particular Package Version in CentOS and Ubuntu?
As Linux users, we often find ourselves needing to work with different versions of packages on your system. Sometimes, we need to use a specific feature that is only available in a newer version of the package, or there could be compatibility issues with other software on my system that only work with a particular version of the package. This is where the ability to install a particular package version comes in handy. In this article, we will go through various methods to install a particular version of a package in CentOS and Ubuntu. We'll explore the use of package ...
Read MoreDifferences between Kurly and curl in Linux
As Linux users, we often work on servers, remote machines, or headless systems where the graphical interface is not available. In these situations, the command line interface becomes the primary method of interacting with the system. Text editors and web browsers can also be used from the command line, but we need tools to download files from the internet. That's where Kurly and Curl come in. Are you tired of using the same old Curl command to download files from the internet in your Linux system? Then you may want to check out Kurly, a newer and faster alternative that ...
Read MoreHow to Install and Configure Apache Hadoop on a Single Node in CentOS 8?
Apache Hadoop is an open-source framework that allows for distributed processing of large data sets. It can be installed and configured on a single node, which can be useful for development and testing purposes. In this article, we will discuss how to install and configure Apache Hadoop on a single node running CentOS 8. Step 1: Install Java Apache Hadoop requires Java to be installed on system. To install Java, run following command − sudo dnf install java-11-openjdk-devel Step 2: Install Apache Hadoop Apache Hadoop can be downloaded from official Apache website. latest stable version at time of writing ...
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