Boot Startup

How to Configure Jenkins with HTTPS via Nginx on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Jenkins with HTTPS via Nginx on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure jenkins with https via nginx on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the […]

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How to Use Python Virtual Environments on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up a Next.js 14 Application on Ubuntu 24.04

Next.js 14 introduces Partial Prerendering, improved Server Actions, and a stable Turbopack bundler. This guide creates and deploys a Next.js 14 application on Ubuntu 24.04 LTS with PM2 and Nginx. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Node.js 20 LTS installed PM2 installed Nginx installed Step 1 – Create a […]

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How to Set Up WireGuard VPN on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up WireGuard VPN on Oracle Linux 10

Introduction Setting up set up wireguard vpn on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up WireGuard VPN on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to […]

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Common Problems 124112

Oracle Linux 10 – firewalld zone mismatch exposes wrong interface – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 5 October 2025 Affected versions: Oracle Linux 10 📖 ~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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Common Problems 124041

Oracle Linux 10 – chronyd not syncing time behind restrictive firewall – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 5 October 2025 Affected versions: Oracle Linux 10 📖 ~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 Analyse Network Traffic with tshark on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Analyse Network Traffic with tshark on Debian 13

Introduction This guide explains how to Analyse Network Traffic with tshark on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with […]

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How to Generate SSL Certificates with openssl on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Generate SSL Certificates with openssl on Debian 13

Introduction This guide explains how to Generate SSL Certificates with openssl on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with […]

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How to Install MariaDB 11 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install MariaDB 11 on Debian 13

Introduction How to Install MariaDB 11 on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie 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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Common Problems 127162

CentOS Stream 10 – Common Problem 145 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 4 October 2025 Affected versions: CentOS Stream 10 📖 ~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 Use tmux on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Use tmux on Oracle Linux 10

Introduction This tutorial demonstrates how to Use tmux on Oracle Linux 10 on Oracle Linux 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 10 system with the default AppStream […]

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