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

How to Install Ansible on RHEL 9

Ansible is an open-source IT automation tool developed by Red Hat that allows managing server configuration, application deployment, and task automation using human-readable YAML playbooks. Unlike Chef or Puppet (which require agents installed on managed nodes), Ansible is agentless — it connects to managed servers via SSH and executes tasks using Python, with no permanent […]

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How to Configure PHP-FPM with Nginx on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Symfony 7 on Ubuntu 26.04

Symfony 7 is a robust PHP framework following an LTS release cycle. Known for its reusable components and strict standards, Symfony powers enterprise applications worldwide. This guide installs a Symfony 7 application on Ubuntu 26.04 LTS with Nginx and PHP-FPM. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx and PHP […]

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How to Set Up WordPress with Nginx on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up WordPress with Nginx on FreeBSD 15

Introduction How to Set Up WordPress with Nginx on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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How to Set Up a Next.js 15 Application on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Deploy a Django App with Gunicorn and Nginx on Ubuntu 26.04

Django is a high-level Python web framework that encourages rapid development and clean design. Gunicorn is a Python WSGI HTTP server used to run Django in production. Nginx acts as a reverse proxy, serving static files efficiently. This guide deploys a Django application on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites […]

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How to Set Up a Local Container Registry with Harbor on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up a Local Container Registry with Harbor on RHEL 9

Harbor is an enterprise-grade open-source container registry that extends the basic Docker Registry with role-based access control, vulnerability scanning, image signing, and replication across multiple registries. While Docker’s official registry:2 image is suitable for simple use cases, Harbor is purpose-built for teams that need audit logs, project-level isolation, and automated security scanning before images reach […]

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How to Install Cockpit Web Console on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Cockpit Web Console on RHEL 10

Introduction How to Install Cockpit Web Console on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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How to Install Nginx on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Install Nginx on SLES 16

Introduction This tutorial covers How to Install Nginx on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install Nginx zypper install -y nginx Step 2 — Enable […]

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Common Problems 115967

Ubuntu 26.04 LTS – UFW blocks inbound service after rule reorder – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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How to Configure Apache with mod_security on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure Apache with mod_security on SLES 16

Introduction This tutorial covers How to Configure Apache with mod_security on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper […]

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How to Configure AppArmor on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure AppArmor on SLES 16

Introduction This tutorial covers How to Configure AppArmor on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Check AppArmor Status systemctl status apparmor aa-status Step 2 — […]

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