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Installing Java on CentOS and Fedora

In the world of programming, Java has been one of the top programming languages. Java is a high-level programming language that follows the concept of object-oriented programming systems. It’s also a platform-independent language that generates cross-platform applications. Java is everywhere – banking and transactions, web frameworks, games (Minecraft), and even mobile operating systems (Android). In this guide, we will walk …

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Configuring a Firewall with UFW on Ubuntu 18.04

A firewall is one of the core components of securing a system. It’s responsible for managing the incoming and outgoing connections over the network. It’s the primary line of defense for your servers and data. This is why it’s paramount to have a well-configured firewall. In this guide, we will walk you through the steps of setting up a firewall …

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The txt File Format: Working with Plain Text Files in Python 3

Introduction One of the primary functions of programming languages is to help you deal with data. This includes data writing, reading, storage, as well as transfer. Python is one of the most popular programming languages. If you are planning to use Python, you should have a basic idea of how to use different file types. The simplest of file types …

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Installing and Configuring Laravel with Nginx on Ubuntu 20.04

Introduction Laravel is a web application framework that comes with a set of built-in tools and resources to develop modern PHP applications. It’s well-known for its reliability, performance, efficiency, modularity, and security. Because of its various built-in features, Laravel has seen incredible growth in its popularity. Many developers are adopting Laravel to streamline the web development process. This guide will …

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Build and Deploy a Flask Application with Docker on Ubuntu 20.04

Introduction Docker is an open-source container platform. It is a lightweight, virtualized, portable, software-defined standardized environment that allows the software to run in isolation from other software running on the physical host machine. Docker offers a lightweight alternative to virtual machines. At the same time, it provides portability, performance, agility, and scalability of applications. For a comprehensive guide about the …

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An Overview of the Sed Stream Editor to Manipulate Text in Linux

The command sed is an abbreviation for stream editor. It’s a widely popular tool on Linux/UNIX systems. Sed isn’t a text editor by itself. However, it can perform various modifications to manipulate a given text. The text input is sent as a stream. Sed then performs the instructed actions on the stream. This guide gives an overview of the sed …

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Exploring CloudSigma PaaS: How to Utilize Ruby PaaS Hosting Services?

What is Ruby? Ruby is an open-source programming language that is well known for having one of the most natural and easy-to-read syntaxes. This object-oriented programming language combines the best features of other languages to make a simple yet rewarding approach a possibility. In addition to its object-oriented nature, Ruby also offers features such as operator overloading, iterators and closures, …

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Improving Availability and Site Performance Using a Replica Set with MongoDB Auto-Clustering

Auto-clustering enables you to create a replica set of your entire database. MongoDB is a stack you can use on your CloudSigma PaaS platform to make the process incredibly easy- you can make a reliable replica set with just one click. There are many benefits to automatic clusterization, some of which include: High Data Availability It is a great strategy …

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Setting Up an NFS Mount on Ubuntu 20.04

The Network File System (NFS) is a distributed storage solution. It’s a file system protocol that allows mounting remote directories on the local server and uses it as if it was local storage. NFS allows multiple clients to share remote storage. It is well-suited for environments that regularly require shared resources. NFS is built on the ONC RPC (Open Network …

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Basics of JavaScript: How to Work with Date and Time

Introduction Date and time are not only critical components of routine life but also a part of computer programming. Whether you need them to book appointments or display a calendar, there are many reasons why you would require a date and time. The applications of date and time features are extensive and extremely versatile. The versatility comes from the fact …

Pull Request on GitHub

Creating a Pull Request on GitHub

Git is a distributed version control system that is easily scalable. It’s suitable for projects of all sizes. In the Git ecosystem, project codes are stored in a Git repository. The GitHub website is one of the most popular places to host Git repositories. GitHub offers both free and paid services for Git repo hosting. It makes managing Git repositories …

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Introduction to Helm: Package Manager for Kubernetes

Kubernetes is a popular and powerful container-orchestration system. Deploying applications to it, however, can be quite complex. That’s because a single application setup could entail generating several interdependent Kubernetes resources. Those can include deployments, pods, services, and replica sets. Each of these requires a YAML manifest file to be written. To ease the process of packaging, configuring, and deploying applications …