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Applying Pagination to Display Multiple Records using MySQL with PHP on Ubuntu 20.04

Introduction Pagination is an important concept in building data-driven applications. When pulling out the records from the database, a large number of records may be fetched. For instance, when running the query for active users or users belonging to some specific location, a large number of users in hundreds or even thousands can be returned. Displaying this huge number of …

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Using Git Branches: A Tutorial

Git is an open-source version control system (VCS) that can handle projects of every size. This DevOps tool is free and open-source (Git source code on GitHub). It tracks changes in the source code, allowing multiple developers to work in sync on a non-linear development. Git was first introduced back in 2005 by Linus Torvalds. This guide will showcase how …

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Your Guide to Installing Drupal on Ubuntu 20.04

Introduction Drupal is one of the most preferred Content Management Systems(CMS) for running blogs and managing enterprise content. Developers and businesses prefer it because of its robustness and usability. It is very customizable and it can be extended to implement a wide variety of use cases. In this tutorial, we will demonstrate how to install Drupal on Ubuntu 20.04 with …

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Installing R on Ubuntu 21.04: A Tutorial

R is a programming language that specializes in working with data. R is free software that supports an extensive catalog of statistical and graphical methods. The list includes various machine learning algorithms, time series, linear regression, and more. It’s used by industry giants like Google, Facebook, Airbnb, Uber, etc. As the description suggests, R is the go-to option when big …

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Forwarding Ports with Iptables in Linux: A How-To Guide

Port forwarding also referred to as port mapping, is a method for allowing remote devices to connect to a specific service within your private local-area network (LAN). As the name suggests, the process involves forwarding requests for a specific port to another port or network. It modifies the destination of the packet in-flight and is considered a type of network …

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Generating SSH Key Pairs with PuTTY to Connect to a VPS

Security is a prime consideration for server admins, especially when there is a need to access servers remotely at regular intervals. Protection from cyber-attacks is of crucial importance to streamline workflows and to ensure business continuity. The standard practice of using a username and password is highly insecure, unsafe, and ineffective. You need a robust and advanced method like SSH …

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Configuring Storage Devices in Linux- Learning to Partition and Format

Introduction There are many situations where you may need a new disk on your Linux system. For the most part, creating a new disk is a straightforward process. However, things can become complicated if you are trying to tinker with partitioning schemes and filesystem formats. To help simplify the process, this tutorial will give you a step by step outline …

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How to Configure Automatic Deployment with Git with a VPS

Git is the most popular version control system in the field of software development. It’s open-source and actively maintained since 2005 by Linus Torvalds, the famous creator of Linux. Today, a staggering number of software projects (including commercial ones) use Git for version management. Git follows a distributed architecture, making it a perfect example of a DVCS (Distributed Version Control …

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How To Troubleshoot and Inspect Kubernetes Networking

Kubernetes is an open-source tool that is crucial in container orchestration. Kubernetes helps in orchestrating and managing clusters at scale across various cloud environments or even on-premise servers. A cluster is a set of hosts meant for running containerized applications and services. A cluster needs a minimum of two nodes to work – one master node and a worker node. …

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Building and Installing Go Programs

Go is a statically typed programming language. Originally designed by Google, Go shares similarities with C in terms of syntaxes. However, in functionality, Go comes with additional features like memory safety, garbage collection, structural typing, etc. Over the past few years, Go has been gaining incredible popularity. This guide will go over the steps of building and installing Go programs …

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Installing Ruby on Rails with RVM on Ubuntu 20.04

Ruby on Rails is one of the most popular web app frameworks. It’s open-source software designed for developers to create successful projects while writing fewer codes. Having a fun and enjoyable development experience is one of the fundamental principles that make Ruby on Rails an attractive choice. The RVM (Ruby Version Manager) tool, as the name suggests, is a third-party …

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Adding and Deleting Users on CentOS 8: How To Guide

Linux is a multi-user operating system. Having proper knowledge of user management is crucial to proper system administration. If you are configuring a fresh Linux server, adding and deleting various users is usually one of the first things you have to do. This guide outlines the steps of adding and deleting users on CentOS 8. Prerequisites Creating and deleting users …