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..

Random strings are used for various purposes in software development. For example, they can be used to code user IDs, generate passwords, and construct tokens in applications. If you’re developing a JavaScript-based program that needs random strings — or any other type of pseudo-random data — then this article is for you! You see, generating random characters (or strings) is easy with the right tools and techniques. Luckily, this article covers exactly that. Let’s get started… Why do we need random strings? Random strings are used to construct tokens, user IDs, and passwords in software. Let’s say you want to…

Read More

There are several macOS versions (also known as OS X or Mac OS X) and codenames of those releases. Apple recently launched macOS Mojave, the latest version of its desktop operating system. Starting with Mac OS X 10.7 Lion in 2011, Apple has been updating its operating system annually with new codenames and revisions of the same code name. In this article, you can learn about all macOS versions and their codenames from 2005 to the present day. What is macOS? macOS is an operating system by Apple that powers Mac computers. It’s available in two major versions: macOS Sierra…

Read More

Grunt is a node-based task runner that helps developers automate common tasks during the software development process. It can be used to compile code, run tests, and more. grunt is easy to install and configure, and it can be used with any programming language. Grunt is available as a free, open-source tool, that is typically used in conjunction with other tools, such as Git and npm. A grunt is a powerful tool that can help developers save time and improve their workflow. In this blog post, you will learn to install Grunt on Ubuntu systems. Prerequsities Assuming you already have…

Read More

In the dynamic world of web development, Amazon Web Services (AWS) has emerged as a leading cloud service provider, offering robust solutions like Amazon S3 and Amazon CloudFront. These services are widely used for hosting and delivering web content. However, developers often encounter a common issue: receiving a 404 error upon page reload when using S3 in conjunction with CloudFront. This article will help you to find the causes of these 404 errors and provides a comprehensive guide for troubleshooting and resolving them, ensuring a smooth user experience. Root Causes SPA Routing: SPAs usually rely on client-side routing. When a…

Read More

PM2 is an advanced process manager for running Node.js applications. That provides an easier option to automate a Node.js application. We can quickly do the start, stop, or other operations on applications. Many of the Node.js applications use “npm start” to run. In this quick how-to guide, we will help you to run “npm start” using pm2. Assuming that you already have Node.js installed on your system. If you haven’t already, visit our tutorial to install Node.js using nvm. Installing PM2: Make sure you have installed PM2 globally on your machine with this command: npm install pm2 –location=global After installing…

Read More

An input device is any hardware component that allows a user to enter data and instructions into a computer. Examples of common input devices include keyboards, mice, touchpads, and trackballs. Selecting the right input device for your needs is important for getting the most out of your computer. Different devices offer different levels of convenience and flexibility, so be sure to choose one that will work best for your individual workflow. There are various input devices that can be used with a computer. The most common input devices are the keyboard and mouse, but there are also other devices such…

Read More

If you work in a tech company as a software engineer, there’s a good chance that you will be asked to create and deploy applications frequently. These applications are usually web apps that are built on top of frameworks such as React, Redux, or Vue.js. An application is the ultimate output of software development and not just another file with multiple layers of folders and files. A Docker container can be used to package your app so it can run in any environment without requiring any pre-installed dependencies or libraries. In this tutorial, we will cover all you need to…

Read More

In this tutorial, you will learn how to create a basic Flask app with Docker. You will set up your app with a Dockerfile, and manage the images with an automated build process. In this process, you’ll also learn how to use multiple Python virtual environments and keep your source code organized. If you’re new to Python or Flask, you may want to check out our beginner guide to Python as well as our beginner guide to Flask first. They cover the basics of these frameworks so that you can follow along better in this tutorial. Let’s get started! What…

Read More

In the world of software development, Docker has become an indispensable tool for creating, deploying, and running applications by using containers. Containers allow developers to package up an application with all of the parts it needs, such as libraries and other dependencies, and ship it all out as one package. This ensures that the application will run on any other Linux machine regardless of any customized settings that machine might have that could differ from the machine used for writing and testing the code. If you’re using Ubuntu 22.04, one of the most popular Linux distributions for both desktop and…

Read More

Bower is a package manager for front-end development that allows you to manage your dependencies and includes features like versioning, downloading from GitHub, and more. It’s popular among web developers because it makes managing project dependencies easy and efficient. In this tutorial, we’ll show you how to install Bower on Ubuntu 22.04. We’ll also show you how to use it to install packages and manage your dependencies. Let’s get started! Step 1 – Installing Node.js Node.js is the primary requirement for running Angular applications. You can install the required Node.js using NVM command-line utility. Log in to your Ubuntu system…

Read More