In this tutorial, I will take you through the concepts of Encapsulation in C++. It was designed with a bias toward system programming and embedded, resource-constrained software and large systems, with performance, efficiency¸ and flexibility of use as its design highlights. C++ has also been found useful in many other contexts, with key strengths being ... Read more
In this tutorial I will take you through the steps to write your first ansible playbook. Ansible is a great tool for managing a large number of servers. With it, you can create incredibly flexible, automated tasks that run from a centralized server to act on remote hosts. With these tasks, called playbooks, you can ... Read more
In this tutorial, we will go through the steps to install Ansible on Ubuntu Server 18.04. Ansible is an open-source software provisioning, configuration management, and application-deployment tool. It runs on many Unix-like systems, and can configure both Unix-like systems as well as Microsoft Windows. It includes its own declarative language to describe system configuration. We ... Read more
In this article, I will take you through the steps to install php on Ubuntu 18.04. PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. Install PHP on Ubuntu Prerequisites Apache webserver should have already be ... Read more
In this article, I will take you through the steps to use gcloud command for GCP Login. The gcloud compute command-line tool enables you to easily manage your Compute Engine resources in a friendlier format than using the Compute Engine API. Before using the google interactive mode for our operations, we need to authenticate through ... Read more
In this article, I will take you through the steps to install gcloud SDK on CentOS 7. Google Cloud Platform, offered by Google, is a suite of cloud computing services that runs on the same infrastructure that Google uses internally for its end-user products, such as Google Search and YouTube. Install gcloud SDK In order ... Read more
In this tutorial, I will take you through the concepts of networking in Docker. A Docker container requires a host to run on. This could be either a physical machine (e.g., a bare-metal server in your on-premise datacenter) or a Virtual machine either on-prem or in the cloud. The host has the Docker service and ... Read more
In this article, I will take you through the steps to manage ports in Docker. By default, when you create a container, it does not publish any of its ports to the outside world. To make a port available to services outside of Docker, or to Docker containers which are not connected to the container’s ... Read more
In this tutorial, we will go through top 12 Nmap commands to scan remote hosts. Nmap is a free and open-source network scanner created by Gordon Lyon. Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. Nmap provides a number of features for probing computer ... Read more
In this tutorial, we will go through Elasticsearch Backup and Restore procedure. Elasticsearch is an open source search engine based on Lucene, developed in Java. It provides a distributed and multitenant full-text search engine with an HTTP Dashboard web-interface (Kibana). The data is queried, accessed and stored in a JSON document format. Elasticsearch is a ... Read more