Linux

Common Problems 127198

CentOS Stream 10 – Common Problem 174 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 25 December 2024 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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Oracle Linux 9 — Leapp Upgrade Messages About Unmounted /proc File System — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Leapp Upgrade Messages About Unmounted /proc File System

🟠 High   ⏱ 5–30 min  Last verified: 25 December 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug 36512929 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 […]

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Common Problems 120083

Debian 12 – time drift causes TLS and authentication failures

🟠 High   ⏱ 5–30 min  Last verified: 25 December 2024 Affected versions: Debian 12 📖 ~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 Install Telegraf on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Install Telegraf on CentOS Stream 10

Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying install telegraf on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Telegraf on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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Common Problems 117102

Ubuntu 22.04 locale warnings in terminal

🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2024 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 114904

RHEL 8 Subscription Not Attached and Repositories Disabled

🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2024 📖 ~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 & Cross-Refs References & Further […]

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How to Enable Brotli Compression in Nginx on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Enable Brotli Compression in Nginx on CentOS Stream 10

Introduction How to Enable Brotli Compression in Nginx on CentOS Stream 10 on CentOS Stream 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 […]

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How to Install Vagrant and VirtualBox on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up a Git Server with Gitea on Ubuntu 24.04

Gitea is a lightweight, self-hosted Git service written in Go. It offers a GitHub-like interface with a tiny resource footprint — ideal for small teams and personal servers. This guide installs Gitea on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server MySQL 8.0 or PostgreSQL 16 installed A […]

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How to Install and Configure Xdebug 3 for PHP 8.3 on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Drupal 11 on Ubuntu 24.04

Drupal 11 is an enterprise-grade open-source CMS and web application framework. Released in 2024, it requires PHP 8.3+ and modern extensions. This guide installs Drupal 11 on Ubuntu 24.04 LTS with Nginx and PHP 8.3. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Nginx, PHP 8.3-FPM, MySQL 8.0 installed Composer installed […]

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Ubuntu 20.04 — flatpak — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — flatpak — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 December 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7046-1 Related CVEs: CVE-2024-42472 https://launchpad.net/bugs/2077087 CVE-2021-41133 CVE-2021-21381 CVE-2021-21261 Upstream summary: It was discovered that Flatpak incorrectly handled certain persisted directories. An attacker could possibly use this issue to read and […]

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