Linux

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

How to Install Ansible on Ubuntu 24.04

Ansible is an agentless IT automation tool that manages servers and deploys applications using simple YAML playbooks over SSH. This guide installs Ansible on Ubuntu 24.04 LTS and demonstrates a basic playbook. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS control node SSH access to managed nodes A user with sudo privileges […]

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Oracle Linux 9 — webkit2gtk3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — webkit2gtk3 — security and stability fixes — required update (ELSA-2023-2256)

🟠 High   ⏱ 15–60 min  Last verified: 4 January 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2256 Related CVEs: CVE-2022-32923 CVE-2022-42799 CVE-2023-23517 CVE-2022-32888 CVE-2022-42824 CVE-2022-46691 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Install GitHub Actions Runner on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Install GitHub Actions Runner on CentOS Stream 10

Introduction How to Install GitHub Actions Runner 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 configuration […]

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Common Problems 127189

CentOS Stream 10 – Common Problem 248 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 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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Common Problems 120061

Debian 12 – ext4 Filesystem Remounts Read-Only – Root Cause and Repair

🔴 Critical   ⏱ 5–30 min  Last verified: 4 January 2025 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 Configure Nginx as a Reverse Proxy on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy on CentOS Stream 10

Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying configure nginx as a reverse proxy on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Nginx as a Reverse Proxy on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, […]

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Common Problems 116628

Ubuntu 24.04 LTS Livepatch Client Attach or Refresh Failure

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2025 Affected versions: Ubuntu 24.04 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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Common Problems 116599

Ubuntu 24.04 LTS chrony Not Synchronizing Time Behind Firewall

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2025 📖 ~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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openSUSE Tumbleweed — python310-tqdm — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python310-tqdm — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:1872-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-34062 Upstream summary: tqdm is an open source progress bar for Python and CLI. Any optional non-boolean CLI arguments (e.g. `–delim`, `–buf-size`, `–manpath`) are passed […]

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Alpine Linux 3.20 — yajl — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — yajl — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 2.1.0-r9 📖 ~4 min read  •  Source: Alpine secdb entry — yajl 2.1.0-r9 Related CVEs: CVE-2023-33460 Upstream summary: Alpine main repository for vv3.20 ships yajl 2.1.0-r9 which addresses CVE-2023-33460. Table of contents Symptom & Impact Environment […]

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