Troubleshooting

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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How to Set Up Ansible on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Ansible on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up ansible 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 Install GitLab Runner on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install GitLab Runner on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up install gitlab runner 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 Deploy a Django Application with Gunicorn and Nginx on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

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

Django is one of the most popular Python web frameworks, and deploying it in production requires more than the built-in development server. The recommended production stack on RHEL 8 pairs Django with Gunicorn as the WSGI application server and Nginx as a reverse proxy that handles static files, TLS termination, and connection management. This tutorial […]

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How to Configure Jenkins Pipelines on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Jenkins Pipelines on Debian 12

Introduction How to Configure Jenkins Pipelines on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 12. This […]

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How to Use Python Virtual Environments on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Python Virtual Environments on RHEL 8

Python virtual environments solve the problem of conflicting package versions across projects by giving each application its own isolated Python installation and package tree. On RHEL 8, the venv module is included with every Python 3 installation, so no additional packages are required to get started. This tutorial covers creating and activating virtual environments, managing […]

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

How to Install Jenkins on Debian 12

Introduction Deploying install jenkins on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will need a […]

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How to Install Python 3 and pip on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Python 3 and pip on RHEL 8

Python 3 is available on RHEL 8 through the AppStream module system, which lets you install and switch between multiple Python versions without compiling from source. Unlike older RHEL releases, RHEL 8 ships with Python 3.6, 3.8, 3.9, and (via later AppStream streams) 3.11 all coexisting on the same system. This tutorial shows you how […]

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

How to Install Portainer on Debian 12

Introduction Deploying install portainer on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure […]

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How to Install Xdebug for PHP on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Xdebug for PHP on RHEL 8

Xdebug is the de facto debugging and profiling extension for PHP, giving you step-by-step execution, variable inspection, stack traces, and code coverage reports. Installing it on RHEL 8 requires a few extra steps compared to other distributions because RHEL’s default PHP packages do not include Xdebug in their repos. This tutorial walks through installation from […]

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