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How to Install Docker Engine on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Docker Engine on RHEL 9

Docker Engine is the industry-standard container platform that packages applications and their dependencies into portable, isolated containers. A Docker container bundles the application code, runtime, libraries, and configuration into a single image that runs identically on any Linux host with Docker installed, eliminating the “it works on my machine” problem. RHEL 9 does not include […]

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How to Install Deno on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Deno on RHEL 9

Deno is a modern JavaScript and TypeScript runtime built on V8 and Rust. Created by Ryan Dahl (the original creator of Node.js), Deno addresses design decisions he regretted in Node.js: Deno has first-class TypeScript support with no build step required, uses ES modules exclusively (no CommonJS), has a secure-by-default permissions model (scripts cannot access the […]

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How to Install .NET 8 SDK and Runtime on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install .NET 8 SDK and Runtime on RHEL 9

.NET is Microsoft’s open-source, cross-platform application framework that runs on Linux, macOS, and Windows. .NET 8 (the current LTS release) includes the ASP.NET Core web framework for building REST APIs and web applications, Entity Framework Core ORM, and a high-performance Kestrel HTTP server. .NET applications are compiled to platform-independent intermediate language (IL) bytecode and run […]

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How to Deploy a Ruby on Rails Application on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Deploy a Ruby on Rails Application on RHEL 9

Ruby on Rails (Rails) is a full-stack web application framework built on Ruby that made convention-over-configuration and the MVC pattern mainstream in web development. Rails provides ActiveRecord (ORM), ActionController (routing and controllers), ActionView (templating with ERB/Haml), ActionMailer, ActiveJob (background jobs), ActionCable (WebSockets), and a comprehensive set of security defaults out of the box. A Rails […]

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How to Install Ruby 3.3 with rbenv on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Ruby 3.3 with rbenv on RHEL 9

Ruby is a dynamic, object-oriented programming language best known as the language behind Ruby on Rails, the influential web framework that popularised convention-over-configuration and RESTful web applications. rbenv is the standard Ruby version manager for production servers — it allows installing and switching between multiple Ruby versions per user or per directory, without requiring root […]

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How to Build and Deploy a Go Web Application on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Build and Deploy a Go Web Application on RHEL 9

Go’s standard library includes a production-ready HTTP server with support for HTTP/2, TLS, and concurrent request handling — no external framework is required for simple web applications. For more complex applications, the Gin framework adds routing, middleware, request binding, and response rendering while maintaining excellent performance. Go web applications compile to a single binary, making […]

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How to Install Java (OpenJDK 21) on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Java (OpenJDK 21) on RHEL 9

Java is the most widely deployed programming language in enterprise environments, powering banking systems, e-commerce platforms, microservices, Android applications, and big data frameworks like Apache Kafka, Hadoop, and Spark. OpenJDK (Open Java Development Kit) is the open-source reference implementation of the Java SE specification, maintained by Red Hat, IBM, and the Java community. RHEL 9 […]

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How to Deploy a Node.js Application with PM2 on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Deploy a Node.js Application with PM2 on RHEL 9

PM2 is a production-grade process manager for Node.js applications. Running a Node.js app directly with node server.js has a critical limitation: if the process crashes, it stays down until someone manually restarts it. PM2 solves this and much more — it automatically restarts crashed processes, starts applications on system boot, enables zero-downtime reloads for application […]

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How to Install Node.js 20 with NodeSource on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Node.js 20 with NodeSource on RHEL 9

Node.js is a JavaScript runtime built on Chrome’s V8 engine that enables server-side JavaScript execution. Its non-blocking, event-driven I/O model makes it exceptionally efficient for real-time applications, REST APIs, streaming services, and microservices that handle many concurrent connections. The RHEL 9 default AppStream provides Node.js 18, but the NodeSource repository provides the latest LTS releases […]

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How to Install Jupyter Notebook on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Jupyter Notebook on RHEL 9

Jupyter Notebook is an interactive computing environment that allows you to create documents containing live Python code, equations, visualisations, and explanatory text in a single file. Notebooks (.ipynb files) are the standard format for data exploration, machine learning experiments, scientific computing, and educational tutorials because they let you execute code in small cells, inspect results […]

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