Operations

How to Manage Node.js Versions with NVM on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Manage Node.js Versions with NVM on RHEL 7

How to Manage Node.js Versions with NVM on RHEL 7 Managing Node.js versions is one of the most common challenges for developers and system administrators working with JavaScript applications. Different projects often require different Node.js versions—a legacy application might target Node.js 14 while a new microservice targets Node.js 20. Upgrading the system-wide Node.js installation to […]

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How to Configure CoreOS rkt Container Runtime on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure CoreOS rkt Container Runtime on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure coreos rkt container runtime on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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How to Set Up Consul on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Consul on Debian 9

Introduction How to Set Up Consul on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. This […]

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How to Install Node.js on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Node.js on RHEL 7

How to Install Node.js on RHEL 7 Node.js is a server-side JavaScript runtime built on Chrome’s V8 engine. It is widely used for building REST APIs, real-time applications, microservices, and command-line tooling. Red Hat Enterprise Linux 7 does not ship a recent version of Node.js in its default repositories, so several installation methods are available […]

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How to Install and Configure Nomad on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Nomad on Debian 9

Introduction This guide explains how to Install and Configure Nomad on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the […]

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How to Install Jupyter Notebook on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Jupyter Notebook on RHEL 7

How to Install Jupyter Notebook on RHEL 7 Jupyter Notebook is a browser-based interactive computing environment used extensively in data science, machine learning, and scientific research. It allows you to write Python code, run it in cells, visualize data inline, and document your analysis—all in one place. This guide covers two installation methods on Red […]

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How to Set Up Docker Registry with Authentication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Docker Registry with Authentication on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up docker registry with authentication on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step […]

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How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 7

How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 7 Flask is a lightweight Python web framework ideal for building APIs and web applications. While Flask’s built-in development server is useful for testing, it is not suitable for production workloads. The standard production stack on RHEL 7 combines Gunicorn as a WSGI […]

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How to Configure Docker with TLS Authentication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Docker with TLS Authentication on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure docker with tls authentication on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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How to Deploy a Django Application with Gunicorn and Nginx on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Deploy a Django Application with Gunicorn and Nginx on RHEL 7

How to Deploy a Django Application with Gunicorn and Nginx on RHEL 7 Django’s built-in development server is single-threaded, outputs detailed error tracebacks to the browser, and is explicitly documented as unsuitable for production. The standard production deployment for Django on Linux is a two-layer stack: Gunicorn (a Python WSGI HTTP server) handles the Python […]

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