Author: Rahul

Linux is an operating system that is widely used in server environments, and it is becoming increasingly popular for desktop use as well. If you are new to Linux, you may be wondering how to shut down or reboot the system. In this article, we will provide you with a beginner’s guide to shutting down or rebooting Linux with step-by-step instructions. Step 1: Open the Terminal To shut down or reboot Linux, you need to open the terminal. The terminal is a command-line interface that allows you to interact with the system. To open the terminal, you can use the…

YUM ( Yellowdog Updater, Modified ) is a command-line package management utility for RPM-based Linux systems, It has been released under the GNU General Public License. Yum is useful for RPMs which have dependencies, Yum searches for all dependencies of any RPM in all available repositories. Below list contains top 5 yum repositories (RPMFusin, EPEL, REMI, ELRepo, Webtatic) for RHEL based systems with installation links, which we need to keep our system up to date with latest packages. These repositories having most of the RPMs required for servers. #1. Adding RPMFusin Repository The RPM Fusion repository provides the packages that…

Moodle is an Open Source Course Management System, It’s also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). This tutorial will help you to install Moodle on CentOS/RHEL Systems Installing Required Packages Install order to setup Moodle we need a Web Server, Database Server and PHP with required modules. Use below link to install following packages. Installing Apache, MySQL and PHP on CentOS/RedHat 6/5 Install required PHP modules using yum package manager. # yum install git php-common php-mysql php-gd php-intl php-curl # yum install php-ldap php-apc php-mbstring php-dom php-soap php-xmlrpc To install git version 1.9…

CakePHP is a robust and comprehensive PHP framework that follows the MVC (Model-View-Controller) approach. It is well-regarded for its conventions-based approach to web development, which can facilitate rapid development cycles. In this article, we’ll guide you through the process of setting up CakePHP on a CentOS/RHEL 8/9 system. The process can be broken down into the following steps: Step 1: Prerequisites Before proceeding, ensure that you have root or sudo access to your CentOS/RHEL system. Additionally, a LAMP (Linux, Apache, MySQL, PHP) stack should be installed and running on your system, since CakePHP is a PHP framework and needs a…

If you’ve encountered the error message “Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2)” while trying to connect to your MySQL database, don’t panic. This is a common issue that can be resolved with a few troubleshooting steps. Understanding the Error Before diving into solutions, it’s essential to understand what this error message means. It typically occurs when you attempt to connect to your MySQL server locally (from the same machine where MySQL is installed) using a Unix socket. The error message consists of three parts: Error Type: “Can’t connect to local MySQL server through socket.” Socket Path:…

Apache OFBiz (The Apache Open For Business Project) is an open-source ERP/CRM system from the Apache Foundation starting point for reliable, secure and scalable enterprise solutions. It offers complete accounting/ledger, inventory management, CRM, and project management systems. Also, OFBiz includes a complete CRM system and an eCommerce shopping cart. OFBiz offers a solid framework for plugin development allowing complete customization. This article will help you to install Apache OFBiz on Linux (CentOS, RedHat, Fedora, Ubuntu, Scientific Linux, and Debian) systems with initial demo data. Step 1 – Install JAVA Java Development Kit (JDK) is the primary requirement for running Apache…

MySQL is a popular open-source relational database management system that is widely used for web development and data-driven applications. When working with MySQL, it’s essential to understand how to create and manage user accounts and grant them specific permissions. This beginner’s tutorial will guide you through the process of adding users and managing permissions in MySQL. Prerequisites Before you start, ensure that you have MySQL installed on your system and have administrative privileges (such as the root user). You’ll also need access to a command-line interface to interact with the MySQL server. Step 1: Accessing the MySQL Server To begin…

In the digital realm, ensuring the integrity of files, especially when transferring them over the internet or storing them for long periods, is paramount. MD5 checksums serve as a crucial tool in this endeavor, offering a way to verify that files have not been altered or corrupted. This guide will walk you through the process of generating and validating MD5 checksums for the contents of a directory, ensuring your data’s integrity every step of the way. What is an MD5 Checksum? An MD5 checksum is a 128-bit hash value, typically expressed as a 32-character hexadecimal number, generated from a file…

Virtual Hosting provides us to host multiple domains (websites) on a single server. It is a concept of resource sharing among multiple hosting accounts. The best use of Virtual hosting is shared hosting servers, where multiple users can host multiple websites on a single server. This blog post will help you to create virtual hosts in the Tomcat web server. Setup Details Here are the basic setup details used in this article: A Linux host with IP address 192.168.1.100 Running the Tomcat server on the host on port 80 Deployed two sample applications, the first application is configured at http://192.168.1.100/myapp1…

Question – How to remove extra spaces from a string using JavaScript? A space (” “) character is used to separate two words. Some times we get the extra spaces in a string, which may case issues with your application. JavaScript trim() function is used for removing leading (before) and trailing (after) spaces from a string. This tutorial will help you to remove extra spaces from a string using JavaScript function. Remove Spaces with JavaScript trim() Function For the example, assign a string with spaces to a variable. Then use JavaScript trim() function to remove leading and trailing spaces from…