Testing:It is the process of executing and evaluating the software, whether it meets the customer’s expectations or not. Who does?QA – Quality Assurance member also called as Software tester. Skills required:-Need to be a stickler for details.-Not afraid to critique.-Strong communication skills.-High analytical thinking and concentration.-In-depth domain knowledge.-Love to solve… Continue Reading Quality Assurance: The Gatekeepers of Software Excellence

Introduction A security group controls the traffic that is allowed to reach and leave the instance. It is a set of IP filter rules that define how to handle incoming (ingress) and outgoing (egress) traffic to both the public and private interfaces of an instance. Prerequisites Implementation Step 1: Log into… Continue Reading How to replace a security group of an EC2 instance in AWS

What is React Native? 1)React Native is an open-source framework for building mobile applications using JavaScript and React. 2) It allows developers to use React, a popular JavaScript library for building user interfaces, to create native mobile applications for iOS and Android platforms. What is the Use of the React… Continue Reading React Native

Introduction SSH or Secure Shell is a cryptographic network protocol that provides a secure way to access and manage network devices and servers over an unsecured network. It is widely used for securely connecting to remote systems, executing commands, and transferring files. Prerequisites Implementation : Without port number (Default port… Continue Reading How to SSH remote server via Terminal

Introduction: The FileZilla software program is a free-to-use (open-source) FTP utility allowing users to transfer files from a local computer to a remote computer. Here we are going to see how to use the key pair to login into FTP in the below steps. Prerequisite: Step 1: Navigate to FileZilla… Continue Reading How to use the key pair to login into FTP

What is React 1.React is a open source java script library developed by facebook 2.It is used to building user interface (Ui) for web applications3.React allows developers to create reuasable components , we can use components as a blocks ,4.Uses as a virtual Dom5.Component based What to learn for React… Continue Reading React Basics

Introduction: Making the entire filesystem or a specific partition read-only on Ubuntu 20.04 can be a useful security measure or a precautionary step to prevent unintended modifications. The read-only setting ensures that no write operations can be performed on the designated filesystem, safeguarding its integrity and reducing the risk of… Continue Reading How to set up the entire filesystem or a specific partition read-only on Ubuntu 20.04?

Introduction:TypeScript, a superset of JavaScript, compiles to plain JavaScript, making it easily integrable into existing JavaScript applications.Features of TypeScript:1. Static Type Checking: if we define a variable with a string type, we can only reassign values of the string type. In general, JavaScript is a loosely typed or dynamically typed… Continue Reading TypeScript Basics

Introduction: Python is a high-level, interpreted programming language used in various sectors. It is fastest growing programming language. It is not only used among software engineers but also among mathematicians, data analyst,scientist,accountants,etc.. It is very easy to learn and reduces number of lines of codes. Python can be treated in… Continue Reading Python – Basics

Introduction: Mysql is the latest release of the powerful MySQL database management system. To start installing the MySQL 8.0 server on CentOS 7, you must add the official MySQL community repository to your system. Run the following command. Prerequisite: 1. Server root login credentials. Step 1: Adding the MySQL Yum… Continue Reading How to install MySQL 8.0 on CentOS 7