authentication

How to Configure BitLocker with TPM on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure BitLocker with TPM on Windows Server 2012 R2

How to Configure BitLocker with TPM on Windows Server 2012 R2 Full-disk encryption is one of the most effective controls against data theft from physical access. BitLocker Drive Encryption, combined with a Trusted Platform Module (TPM) 1.2 or 2.0 chip, ensures that a stolen or decommissioned server’s drives cannot be read without the original hardware’s […]

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How to Configure Podman Compose on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Podman Compose on RHEL 9

Podman Compose (podman-compose) is a Python implementation of the Docker Compose specification that uses Podman instead of Docker. It allows running existing docker-compose.yml / compose.yaml files with Podman’s rootless, daemon-less container engine. For teams migrating from Docker to Podman, podman-compose provides a familiar workflow with minimal configuration changes. Alternatively, Podman 4.0+ includes a native podman […]

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How to Install Podman as a Rootless Docker Alternative on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Podman as a Rootless Docker Alternative on RHEL 9

Podman is Red Hat’s recommended Docker-compatible container engine that runs containers without requiring a root-owned daemon. Unlike Docker, which requires the Docker daemon (dockerd) running as root, Podman runs containers directly as the user executing the command — a model called rootless containers. This eliminates an entire class of privilege escalation vulnerabilities: even if a […]

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How to Install Portainer for Docker Management on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Portainer for Docker Management on RHEL 9

Portainer is a lightweight, web-based Docker management UI that makes container management accessible without needing the Docker CLI. It provides a graphical interface for managing containers, images, volumes, networks, Docker Compose stacks, and container registries. Portainer Community Edition (CE) is open-source and supports Docker standalone, Docker Swarm, and Kubernetes environments. It is particularly valuable for […]

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How to Set Up a Private Docker Registry on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up a Private Docker Registry on RHEL 9

A private Docker registry allows organisations to store and distribute container images internally, without relying on Docker Hub or a cloud registry. This is essential for teams working with proprietary application images that cannot be stored in public registries, organisations with strict data sovereignty requirements, and environments with limited internet access. Docker provides an official […]

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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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How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Deploy a Flask Application with Gunicorn and Nginx on RHEL 9

Flask is a lightweight Python web microframework that provides only the essentials: URL routing, request/response handling, and Jinja2 templating. Unlike Django, Flask does not include an ORM, authentication, or admin interface by default — these are added through extensions like SQLAlchemy, Flask-Login, and Flask-Admin. This minimalism makes Flask the ideal choice for REST APIs, microservices, […]

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How to Deploy a Django Application with Gunicorn and Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Deploy a Django Application with Gunicorn and Nginx on RHEL 9

Django is a high-level Python web framework that follows the “batteries included” philosophy — it provides an ORM, authentication, admin interface, form validation, URL routing, templating, and security middleware out of the box. This makes Django the framework of choice for data-driven applications and content management systems where rapid development and maintainability matter. Django’s ORM […]

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How to Install Laravel 11 with Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Laravel 11 with Nginx on RHEL 9

Laravel is the most popular PHP web application framework, providing an expressive, MVC-based structure with built-in features including Eloquent ORM, Blade templating, database migrations, queues, events, broadcasting, and the Artisan CLI. Laravel follows convention-over-configuration to reduce boilerplate and accelerates development with scaffolding tools like Breeze (authentication starter kit) and Jetstream. This guide covers creating a […]

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How to Configure Database Connection Pooling with PgBouncer on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Database Connection Pooling with PgBouncer on RHEL 9

PgBouncer is a lightweight PostgreSQL connection pooler that solves one of PostgreSQL’s most common scalability problems: the high cost of creating new database connections. Unlike MySQL, PostgreSQL spawns a new OS process for each client connection, which consumes approximately 5–10 MB of memory and requires significant CPU time to establish. Web applications that open hundreds […]

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