Author: Rahul

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

PHP

PHP Composer is a dependency manager for PHP, facilitating the installation and management of PHP packages. It’s essential for modern PHP development. This article guides you through installing and using PHP Composer on CentOS/RHEL 9/8. Prerequisites A CentOS/RHEL 9/8 system Command-line access with sudo privileges Basic knowledge of PHP and Linux commands Step 1: Installing PHP Before installing Composer, ensure PHP is installed. Use the following command to install PHP: sudo dnf install php php-cli php-json Step 2: Downloading Composer You can download Composer using curl. First, ensure curl is installed: sudo dnf install curl Then, download the Composer installer…

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In the world of version control, mistakes are a given. You may make an unintended change, commit too soon, or simply want to revert to a previous state of your codebase. Fortunately, Git provides mechanisms to correct such mistakes. One common task is rolling back the most recent commit. This article will guide you through this process step-by-step. 1. Understanding the Basics Before diving in, it’s essential to understand a couple of fundamental Git concepts: Commit: A snapshot of changes made in the codebase. Each commit has a unique ID (hash) associated with it. HEAD: A pointer that refers to…

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ImageMagick is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats like GIF, JPEG, PNG, Postscript, and TIFF. We can also use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and BĂ©zier curves. ImageMagick is typically used from command line. Also we can use it from any programming language by using its interface like Magick.NET (.Net),IMagick (PHP), PerlMagick (Perl) etc. This article will help you to install ImageMagick on CentOS, RHEL…

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ImageMagick is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats like GIF, JPEG, PNG, Postscript, and TIFF. We can also use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and BĂ©zier curves. This article will help you to install ImageMagick on 19.04, 18.04 & 16.04 LTS operating systems. Step 1 – Prerequsities First of all, You need to install the required packages in order to install ImageMagick and Imagick PHP…

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Virtual Hosting allows multiple domains or websites to operate on a single server. It’s especially useful in shared hosting environments, where one server hosts thousands of websites, all sharing its resources. This guide will demonstrate how to set up Virtual Hosts on an Apache2 server for Ubuntu, Debian, and LinuxMint systems. For those interested in a similar setup with Nginx on Ubuntu, you can refer to “Set Up Virtual Hosts in Nginx on Ubuntu.” Step 1: Installing Apache If Apache is not already installed on your system, you can install it using the following commands. Remember to update your repositories…

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CentOS Web Panel in short CWP is a free web hosting control panel designed easy management of (Dedicated & VPS) servers without of need to use ssh console. This works for RPM-based distributions only. To use this control panel you must have CentOS, RHEL or CloudLinux operating system on your server. CWP provides easy tool for migrating accounts from cPanel server to CWP with few clicks. This article will help you to install CentOS Web Panel CentOS/RHEL & CloudLinux systems. Step 1 – System Requirements To install CentOS Web Panel, your system must have a minimum of 512MB RAM for…

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When working with Java, there are several ways to obtain the current timestamp, which is essential for a variety of applications including logging events, measuring execution times, or handling date and time operations. A timestamp is a sequence of characters, denoting the date and time at which a certain event occurred. The following introduction provides an overview of five methods to get the current timestamp in Java, each suited for different requirements and use cases. These methods leverage the capabilities of different classes available in Java, such as System, Date, Calendar, Instant, and the java.time API, introduced in Java 8.…

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PHP

Zend Framework 2 is an open source object oriented software framework, used for faster development. Zend also provides MVC architecture and code re-usability feature. This tutorial will help you to How to Install PHP Zend Framework on Redhat based system. I am using CentOS 6.7 while writing this tutorial. 1. Install HTTPD & PHP First make sure that you have installed HTTPD and PHP on your system. If not have already installed use following command to install it. Zend Framework 2 required PHP >=5.3 to work properly. # yum install httpd php php-cli php-common 2. Install PHP Composer After installing…

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Having been around for some time now, Hadoop has become one of the most popular open-source big data solutions. It processes data in batches and is famous for its scalable, cost-effective, and distributed computing capabilities. It’s one of the most popular open-source frameworks in the data analysis and storage space. As a user, you can use it to manage your data, analyze that data, and store it again – all in an automated way. With Hadoop installed on your Fedora system, you can access important analytic services with ease. This article covers how to install Apache Hadoop on CentOS and…

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Apache Tomcat is a widely used open-source Java Servlet Container developed by the Apache Software Foundation (ASF). Tomcat acts as a web server for Java-based web applications and is an essential tool for developers working with Java Servlets and JavaServer Pages (JSPs). This guide will take you through the process of installing Tomcat 11 on Ubuntu, Debian, and Linux Mint systems. Warning: Please be aware that as of the writing of this guide, Apache Tomcat 11 is currently in an Alpha release stage. This version is considered unstable and is not suitable for production environments. If you are looking for…

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