Firewall

Common Problems 113923

RHEL 10 – SELinux denies nginx access to mounted content – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 January 2026 Affected versions: RHEL 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 113892

RHEL 10 – dnf update fails with metadata download timeout behind proxy – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 January 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Install SQLite on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install SQLite on Oracle Linux 10

Introduction How to Install SQLite on Oracle Linux 10 on Oracle Linux 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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Common Problems 114019

RHEL 10 – Podman container cannot bind low port under SELinux enforcing – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 17 January 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Install Woodpecker CI on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Woodpecker CI on RHEL 10

Introduction Setting up install woodpecker ci on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Woodpecker CI on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the […]

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How to Install rkhunter on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install rkhunter on RHEL 10

Introduction How to Install rkhunter 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 and production-safe. […]

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Common Problems 113910

RHEL 10 – AppStream modular dependency conflict blocks package install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 15 January 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Install OpenTofu on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install OpenTofu on RHEL 10

Introduction Setting up install opentofu on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install OpenTofu on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the result on […]

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Common Problems 113941

RHEL 10 – firewalld default zone blocking application port access – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 January 2026 Affected versions: RHEL 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 113922

firewalld runtime rules disappear after reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 12 January 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary Opened ports work temporarily but close after system reboot. Symptoms firewall-cmd –list-ports […]

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