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..

The VirtualBox Guest Additions provides some device drivers and application for the optimization of performance and usability of Guest operating systems. It is installed inside the Guest operating system. So you need to install on each Virtual Machines running on your system. I recommend to install or upgrade VirtualBox latest version first. This tutorial is to help you with the installation of VirtualBox Guest Additions on Fedora 27/26, CentOS/RHEL 7/6. Step 1 – Prerequisites First of all, Enable the EPEL release yum repository on your Fedora, CentOS, or RHEL systems. Execute one of the below commands to enable yum repository.…

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NoMachine is a popular remote desktop application. You can use it as the alternative of TeamViewer, which is available freely. Except for the Nomachine, the users have other choices like AnyDesk for the remote desktop, But NoMachine will provide you the better experience over any other remote desktop applications. This tutorial will help you to install NoMachine on Ubuntu, Debian, and LinuxMint systems. But, If you still love TeamViewer, You can also install TeamViewer using these instructions. Step 1 – Install NoMachine Anydesk is available in both 64-Bit and 32-Bit formats. You can download it from its official website and…

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On AWS Ec2 instances, your web server is listening on port 80 to accept HTTP connections. Afterward, you configured the Amazon Elastic Load Balancer (ELB) to listen for HTTP and HTTPS traffic and forward all requests to the backend server on port 80 only. The Amazon Elastic Load Balancer (ELB) supports the X-Forwarded-Proto header value, which includes the protocol of the application. The X-Forwarded-Proto header value of the HTTP request is used in this tutorial, and the rewrite rules are applied if the client protocol is not HTTPS. Here is how to force a redirect to HTTPS behind AWS ELB…

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How to Upgrade Ubuntu 16.04 to Ubuntu 18.04 LTS. Ubuntu 18.04 is an LTS release will be supported till 2023. Ubuntu provids two types of releases Standard release and Long Term Support (LTS) release. Ubuntu provides support for standard releases for approx 1 year while Long Term Support is useful for approx 5 years. A new Ubuntu 18.04 LTS release is available to upgrade. The Ubuntu desktop users can upgrade to the latest release. But if you are running Ubuntu Server and especially production server, we recommend waiting for a few months before the upgrade to Ubuntu 18.04 LTS. Step…

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This tutorial will help you to set up Selenium with ChromeDriver on Ubuntu, and LinuxMint systems. This tutorial also includes an example of a Java program that uses a Selenium standalone server and ChromeDriver and runs a sample test case. Read This: Setup Selenium with Firefox on Ubuntu Step 1: Installing Java Execute the following commands to install the required packages on your system. Here Xvfb (X virtual framebuffer) is an in-memory display server for a UNIX-like operating system (e.g., Linux). It implements the X11 display server protocol without any display. This is helpful for CLI applications like CI services.…

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PHP-FPM (FastCGI Process Manager) is an alternative implementation of PHP FastCGI. It provides some additional features like Adaptive process spawning which is useful for sites. This tutorial will help you to install Apache with PHP-FPM/FastCGI on Ubuntu 16.04 system. In this tutorial, we are using PHP 7.2 and configure with Apache using PHP-FPM and FastCGI. Install Apache with PHP & FastCGI on CentOS/RHEL You can also visit the previous tutorial to configure Apache with multiple PHP versions using PHP-FPM/FastCGI on Ubuntu systems. Apache Installation Install Apache web server from the official repository. Launch terminal on your system or login with…

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Generally, the host manager used a separate server for each PHP version application deployment. Which increases the hosting cost. Some of the host managers are using Docker to run multiple PHP versions on a single server. Also, most of you are aware of the configuration, I used in this tutorial. But some of the system administrators are not aware of this. This tutorial will help you to install multiple PHP version with Apache on Ubuntu 22.04, 20.04, and 18.04 LTS systems without switching PHP versions. This tutorial describes the installation and configuration of two VirtualHost on Apache with separate PHP…

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Homebrew is a popular package manager for macOS, allowing users to easily install and manage software packages on their Mac. MySQL, an open-source relational database management system, is one such software that can be easily installed using Homebrew. This article provides a step-by-step guide on how to install MySQL on macOS using Homebrew. Prerequisites macOS: Ensure you have a compatible version of macOS. Most recent versions should work. Command Line Tools (CLT) for Xcode: If you haven’t installed CLT, install it by running the command `xcode-select –install`. Homebrew: If you haven’t installed Homebrew yet, you can do so by following…

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Java is a general-purpose, secure, robust, object-oriented language developed by Sun Microsystems in 1990. Java is portable which means it follows to write once run anywhere paradigm. Many of the useful applications are built on Java and required a Java runtime environment. If you are preparing your system for developing new Java applications, you need to install JDK on your machine. In this blog post, you will learn to install different-2 Java versions on macOS using Homebrew. Pre-Requisites Before starting the installation of Java using this tutorial you must have the following prerequisites Terminal: You must have Mac Terminal access…

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VirtualBox Extensions Pack is a set of code extensions for VirtualBox. These code extensions allow users to create virtual machines that can run Windows, Linux, macOS, and other operating systems. The extensions pack includes drivers for additional operating systems and applications, as well as a number of useful features that can enhance the experience of using virtual machines. Oracle VM VirtualBox provides additional extension packs that can be downloaded from the official website. Which extends the functionality of the VirtualBox base package. The extension pack provides the following added functionality VirtualBox Remote Desktop Protocol (VRDP): VRDP is a backward-compatible extension…

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