Tuples In the relational model, a tuple is a fundamental concept that represents a single record or row in a table. In PostgreSQL, a tuple is composed of a set of attribute values, each corresponding to a specific column or field in the table. This section will cover the various aspects and properties of tuples within PostgreSQL….
PostgreSQL is a powerful open-source relational database management system that offers a wide range of configuration options to optimize performance and customize the behavior of the database server. These configuration options are stored in various configuration files that control different aspects of the PostgreSQL server. These are the main configuration files in a standard PostgreSQL…
PostgreSQL Configuration Information Purpose Command Show PostgreSQL version sudo -u postgres psql -c “SHOW server_version;” Show Data Directory sudo -u postgres psql -c “SHOW data_directory;” Show Listen Addresses sudo -u postgres psql -c “SHOW listen_addresses;” Show Ports sudo -u postgres psql -c “SHOW port;” Show Max Connections sudo -u postgres psql -c “SHOW max_connections;” Show…
Introduction In this tutorial, we will guide you through the process of installing Ubuntu 20.04 on a VMware ESXi host. We will provide step-by-step instructions along with screenshots to make the installation process easier for you. Prerequisites Before we begin, make sure you have the following: A VMware ESXi host An Ubuntu 20.04 ISO image…
Introduction In this blog post, we will guide you through the process of installing and configuring a Kubernetes worker node on Ubuntu 20.04 LTS Server Edition. Kubernetes is an open-source container orchestration platform that allows you to automate the deployment, scaling, and management of containerized applications. A worker node is a machine that runs the…
Introduction Ansible is a powerful automation tool that allows you to manage and configure systems in a simple and efficient way. In order to automate tasks on Windows machines using Ansible, you need to enable WinRM (Windows Remote Management) on the target machines. What is WinRM? WinRM is a Microsoft technology that allows remote management…
Setting Up a Kubernetes Cluster on Ubuntu Server 22.04.3 LTS In this guide, we will walk through the steps to set up a Kubernetes cluster with containerd as the container runtime on Ubuntu Server 22.04.3 LTS. We will cover the installation on three nodes, including the control plane and worker nodes. Prerequisites 3 Nodes, each…
Introduction Ansible is an open-source automation tool that allows you to automate tasks such as software provisioning, configuration management, and application deployment. In this step-by-step guide, we will walk you through the process of installing Ansible and enabling Python and Pip virtual environments. Step 1: Install Ansible To install Ansible, follow these steps: Open a…
Introduction MongoDB is a popular NoSQL database that is known for its flexibility and scalability. In this blog post, we will guide you through the process of installing MongoDB on Ubuntu and provide some common initial configuration steps to get you started. Step 1: Update System Packages Before installing MongoDB, it is always a good…
Introduction Installing PostgreSQL 14 on an Ubuntu server is a simple process that can be completed in a few steps. While the Ubuntu repositories may not always have the latest version, it is recommended to use the official PostgreSQL repository for the most up-to-date installation. This step-by-step guide will walk you through the process. Step…