Table of Contents 1. Create And Launch Instance In Amazon Lightsail 2. Install Apache Server In Amazon LightSail 3. Install PHP In Amazon LightSail 4. Install MYSQL In Amazon LightSail 5. Verify Lamp Server By Creating And Running index.php File In this tutorial, we will implement Multiple Database Connections with Spring Boot using JPA. 1.) […]

Node.js is an open-source cross-platform JavaScript runtime for easily building fast and scalable network applications. NPM (Node Package Manager) is Node’s official package manager used for installing and managing package dependencies. We will be installing Nodejs using Two methods, Ubuntu official repository and NodeSource repository.The same instructions can be used for installing any Ubuntu-based distribution, […]

When you run update command using sudo apt-get update or sudo apt update then you may see error like “GPG error: http://dl.google.com/linux/chrome/deb stable InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY THE_MISSING_KEY_HERE“. Screen shot for the same is like below : In the above image, it is showing […]

Before going to check the issue and it’s solution, let’s first check What is GPG?. GPG (or GNU Privacy Guard) is an open source implementation of PGP. It is an encryption technique which was originally developed for e-mail messaging exchanges and that is now using in a number of different applications e.g. code signing for […]

Magento indexing is very important in magento websites. When you run magento indexing it just copy the product or category data from EAV tables into FLAT tables. Magento provides two ways of indexing : Indexing using the magento admin panel. Indexing using the command line. When you have large number of products in your magento […]

Security is very important when you run your own server. And You want to make sure that only authorized users can access your server and services installed in the server. Ubuntu comes with default firewall (already installed) called UFW. UFW stands for Uncomplicated Firewall. Step 1 : To install the ufw firewall on ubuntu if […]

Docker is an open platform for creating containers developing, shipping & running software applications. Note:- To install docker on ubuntu 18.04, you need ubuntu 18.04 with 64-bit system. Step 1 : Uninstall older version if installed already Docker or docker-engine are the older versions of dockers. If any of these versions are installed in the […]

Docker is an open platform for creating containers developing, shipping & running software applications. Note:- To install docker on ubuntu 16.04, you need ubuntu 16.04 with 64-bit system. Step 1 : Uninstall older version if installed already Docker or docker-engine are the older versions of dockers. If any of these versions are installed in the […]