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How to Deploy a Node.js Application with PM2 on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy a Node.js Application with PM2 on RHEL 8

PM2 is a production-grade process manager for Node.js applications that handles automatic restarts on crashes, log aggregation, clustering, and startup script generation for Linux init systems including systemd. Unlike running Node.js directly with node app.js, PM2 keeps your application alive across failures and server reboots without writing custom systemd unit files for every project. On […]

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How to Set Up Consul Service Mesh on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Consul Service Mesh on Debian 12

Introduction This guide explains how to Set Up Consul Service Mesh on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with […]

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How to Configure HashiCorp Vault on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure HashiCorp Vault on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure hashicorp vault on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and the […]

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How to Manage Node.js Versions with NVM on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Manage Node.js Versions with NVM on RHEL 8

NVM (Node Version Manager) is a shell script that lets you install and switch between multiple Node.js versions on the same machine without requiring root access or affecting system-wide packages. This is invaluable when you work on projects that require different Node.js versions simultaneously, or when you need to test your application against multiple runtimes. […]

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How to Install OpenTofu on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install OpenTofu on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up install opentofu on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and the resulting […]

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How to Install Node.js on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Node.js on RHEL 8

Node.js is a JavaScript runtime built on Chrome’s V8 engine, widely used for building fast, scalable network applications, REST APIs, and real-time services. RHEL 8 provides Node.js through two channels: the built-in AppStream module system and the NodeSource third-party repository, which typically offers newer LTS releases. This tutorial covers both installation methods, verifying the installation, […]

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How to Install Terraform on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Terraform on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up install terraform on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and the resulting […]

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How to Install Jupyter Notebook on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Jupyter Notebook on RHEL 8

Jupyter Notebook is an interactive computing environment that lets you combine live code, equations, visualizations, and narrative text in a single document. On RHEL 8, the recommended approach is to install Jupyter inside a Python virtual environment to keep the system Python clean. This tutorial covers installation, password protection, systemd service setup, and configuring Nginx […]

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How to Write Ansible Playbooks for Debian 12 Systems — step-by-step Debian 12 tutorial on Progressive Robot

How to Write Ansible Playbooks for Debian 12 Systems

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up write ansible playbooks for debian 12 systems on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and […]

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How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 8

Flask is a lightweight Python web framework well-suited for building APIs and web applications on RHEL 8. Gunicorn acts as the production-grade WSGI server that runs your Flask app, while Nginx sits in front as a reverse proxy handling incoming traffic. This guide walks through deploying a Flask application on RHEL 8 using a Python […]

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