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Introduction : File Transfer Protocol (FTP): File Transfer Protocol (FTP) is a standard network protocol for file exchange between clients and servers. Operating on a client-server model, FTP can’t have built-in encryption, making data susceptible to security risks. Despite its simplicity and widespread use, FTP may not be ideal for… Continue Reading How to connect FTP and SFTP via Terminal and Filezilla

In Node.Js applications, we can perform email functionality with the use of “nodemailer” library. Nodemailer:It is a comprehensive email module for Node.js, which makes it easy to send emails from your Node.js application. It supports HTML content, attachments, different transport methods (like SMTP, sendmail, etc.), and more. Transporter:Transporter is an… Continue Reading Email Functionality in Node.Js Application:

What is GraphQL?       GraphQL is a query language for APIs. It was developed by Facebook as a solution to fetch data more efficiently. Why GraphQL:     The Problems with REST In REST APIs, each endpoint will return a specific payload of JSON data. Even if we only need certain fields, it… Continue Reading GraphQL Basics

Introduction: Monitoring memory cache utilization is crucial for maintaining optimal system performance and resource utilization in your IT infrastructure. Nagios, a powerful monitoring system, allows you to track various metrics, including memory cache usage. Prerequisite: Server root login credentials. Step 1: Log in to the Ubuntu or Centos server as… Continue Reading How to set up the custom memory cache monitor on Nagios and clear the memory cache with cronjob?

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

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?