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..

When running containers, you may have files that you need to copy from the host machine into the container. This can be for a number of reasons, such as configuration files that are specific to your environment and cannot be sourced from standard locations or if you want to leverage a private registry like Atlas as part of your workflow. If this sounds like something you need in your workflow, continue reading this blog post to learn more about how it’s done! There are multiple ways of doing this but the following is the most common. Keep reading to learn…

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Docker containers are great for many reasons, but one of the biggest advantages is that they can be stopped and started at any time. This means that you can easily remove a container if it’s no longer needed or you want to upgrade or reconfigure your system. And because Docker containers are lightweight and run in their own isolated environment, there’s no need to worry about having too much overhead on your system. So when it comes time to clean up after using Docker, it’s important to remove all of the containers first before starting the process of removing Docker…

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HDFS is the Hadoop Distributed File System. It’s a distributed storage system for large data sets which supports fault tolerance, high throughput, and scalability. It works by dividing data into blocks that are replicated across multiple machines in a cluster. The blocks can be written to or read from in parallel, facilitating high throughput and fault tolerance. HDFS provides RAID-like redundancy with automatic failover. HDFS also supports compression, replication, and encryption. The most common use case for HDFS is storing large collections of data such as image and video files, logs, sensor data, and so on. Creating Directory Structure with…

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Understanding unstructured data and analyzing massive amounts of data is a different ball game today. And so, businesses have resorted to Apache Hadoop and other related technologies to manage their unstructured data more efficiently. Not just businesses but also individuals are using Apache Hadoop for various purposes, such as analyzing large datasets or creating a website that can process user queries. However, installing Apache Hadoop on Ubuntu may seem like a difficult task for users new to the world of Linux servers. Fortunately, you don’t need to be an experienced system administrator to install Apache Hadoop on Ubuntu. The following…

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If you’re a new user of Fedora, you might not be aware that it comes in different versions. The latest version of Fedora is referred to as the ‘primary’ version and is called the ‘Current’ version. This means that there are previous versions released by the developers that users can upgrade to from a lower version. In this article, we look at how to upgrade your Fedora version. Read on for more information… What is a Fedora Version? The version of Fedora you’re using tells you a lot about the state of the software that comes with the operating system.…

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PostgreSQL is an open-source database management system (DBMS) that is widely used for its reliability, performance, and scalability. It is also known as a third-generation DBMS because it retains data in secondary storage rather than memory, making it less prone to performance degradation and other issues associated with dynamic memory allocation. In this article, we’ll show you how to install PostgreSQL on macOS. In this blog post, you will learn how to install PostgreSQL on macOS with Homebrew by following the steps below. Once you complete the installation process, you’ll be able to create databases, tables, and other objects inside…

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A number is a combination of 0-9 digits—the Bash variables stores all value in the form of strings. Even if the stored value is in string format, we can perform all the arithmetical operations if the stored value is a valid number. As a best practice, we should verify the values of variables before performing the arithmetic operations. A number can be an integer number, a floating point number, or a positive/negative number that prefixes with a “+ and -” symbol. In this tutorial, we have discussed a few methods to verify that the variable contains only digits, integers, and…

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How to install VirtualBox on macOS? A step-by-step tutorial to install VirtualBox on the macOS system along with an extension pack. VirtualBox is a popular, cross-platform virtual machine manager that allows you to create virtual machines (VMs) on your Mac. VMs can be used to run different operating systems at the same time. They’re also useful for testing software in isolation, without risking your real computer. In order to install VirtualBox on macOS, you need to have a Mac with a 64-bit processor running macOS 10.11 or higher. VirtualBox runs on Windows, macOS, and Linux, and supports a wide range…

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Did you know that you can run virtual machines on your Linux computer? It’s true. Thanks to virtualization software like VirtualBox, you can set up a separate environment for any operating system — even something as unusual as Windows or OS X — without risk to your primary operating system. You’ll find many uses for virtual machines, from testing software before you release it to other users to safely trying out experimental new versions of Linux. In this article, we show you how to install VirtualBox on Ubuntu 22.04 and other common versions of Linux. Prerequisites First of all, upgrade…

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Odoo ERP is an enterprise resource planning (ERP) software that allows you to manage all aspects of your business, from accounting to sales. It gives you the ability to streamline your organization and increase efficiency. As a result, it can help you save time and money while increasing profits. The main advantages of using Odoo ERP include the following: It allows for a complete view of your business operations, allowing you to identify issues early on and take action quickly. It’s easy to use. You can set up an Odoo ERP account in just a few minutes by simply filling…

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