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

Introduction:Personal access tokens (PATs) are an alternative to using passwords for authentication to GitHub when using the GitHub API or the command line. You can create a personal access token to use in place of a password when you are working with GitHub Operations. To generate the personal access token. Prerequisite:GitHub… Continue Reading How to create a new token from GitHub

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

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