In this series of articles, we are going to cover the entire Cloudera Hadoop Cluster Building building with Vendor and Industrial recommended best practices. Part 1: Best Practices for Deploying Hadoop Server on CentOS/RHEL 7 Part 2: Setting Up Hadoop Pre-requisites and Security Hardening Part 3: How to Install and Configure the Cloudera Manager on
How to Monitor Performance Of CentOS 8/7 Server Using Netdata
There are tons of monitoring tools that are used for keeping an eye on systems performance and sending notifications in case something goes wrong. However, the installation and configuration steps involved are often tedious. Netdata is an open-source real-time monitoring & troubleshooting tool that only requires a few steps to get installed. The Git repository
How to Install Hadoop Single Node Cluster (Pseudonode) on CentOS 7
Hadoop is an open-source framework that is widely used to deal with Bigdata. Most of the Bigdata/Data Analytics projects are being built up on top of the Hadoop Eco-System. It consists of two-layer, one is for Storing Data and another one is for Processing Data. Storage will be taken care of by its own filesystem
How to Configure Network Static IP Address on RHEL/CentOS 8/7
The scope of this tutorial is to explain how we can edit and make changes to Network Configurations on RHEL/CentOS 8/7 from the command line only, and, more specifically how we can set up a Static IP address on network interfaces using system network-scripts, which is a must be configured to serve Internet-facing network services, and
How to Install and Configure OpenVPN Server in CentOS 8/7
A Virtual Private Network is a technology solution used to provide privacy and security for inter-network connections. The most well-known case consists of people connecting to a remote server with traffic going through a public or insecure network (such as the Internet). Picture the following scenarios: OpenVPN Network Diagram In this article, we will explain
How to Setup and Manage Log Rotation Using Logrotate in Linux
One of the most interesting (and perhaps one of the most important as well) directories in a Linux system is /var/log. According to the Filesystem Hierarchy Standard, the activity of most services running in the system are written to a file inside this directory or one of its subdirectories. Such files are known as logs
How to Install Odoo (Open Source ERP and CRM) on CentOS 8
Odoo is an opensource all-in-one business management software that ships with a suite of various business applications for various uses such as eCommerce, project management, helpdesk, accounting, inventory, and a website builder to mention a few. In this article, you will learn how to install Odoo (Open Source ERP and CRM) on CentOS 8 and
Setup Passwordless SSH Login for Multiple Remote Servers Using Script
SSH Key-based authentication (also known as public-key authentication) allows for password-less authentication and it is a more secure and a much better solution than password authentication. One major advantage of SSH password-less login, let alone security is that it allows for automation of various kinds of cross-server processes. Related Read: How to Secure and Harden
How to Install Moodle Learning Platform with Nginx in CentOS 8
Moodle is the world’s most popular learning management system for building robust online learning sites. It features a range of activities and educational tools that you can choose from, it supports assessment management and ships with custom certificates. It also enables communication with your students in real-time with a powerful video conference tool. Besides, it
How to Open Port for a Specific IP Address in Firewalld
How can I allow traffic from a specific IP address in my private network or allow traffic from a specific private network through firewalld, to a specific port or service on a Red Hat Enterprise Linux (RHEL) or CentOS server? In this short article, you will learn how to open a port for a specific