Kernel Drivers

Alpine Linux 3.20 — linux-lts — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — linux-lts — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 6.6.13-r1 📖 ~4 min read  •  Source: Alpine secdb entry — linux-lts 6.6.13-r1 Related CVEs: CVE-46838 CVE-2023-32233 CVE-2022-41674 CVE-2022-42719 CVE-2022-42720 CVE-2022-42721 CVE-2022-42722 CVE-2020-29568  +1 more Upstream summary: Alpine main repository for vv3.20 ships linux-lts 6.6.13-r1 which […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2024-12713)

🟠 High   ⏱ 15–60 min  Last verified: 6 August 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-12713 Related CVEs: CVE-2024-49863 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Configure sysutils/check_mk_agent on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure sysutils/check_mk_agent on FreeBSD 14

Introduction How to Configure sysutils/check_mk_agent on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 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 packet filtering, and […]

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

How to Install and Configure SonarQube on Ubuntu 24.04

SonarQube is an open-source platform for continuous code quality inspection, detecting bugs, vulnerabilities, and code smells. This guide installs SonarQube on Ubuntu 24.04 LTS with PostgreSQL 16. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Minimum 2 GB RAM (4 GB recommended) Java 21 installed PostgreSQL 16 installed A user with […]

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Common Problems 122672

Kernel Module Fails to Load After Minor Version Bump

🟠 High   ⏱ 5–30 min  Last verified: 2 August 2024 Affected versions: FreeBSD 14 📖 ~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 SQLite on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install SQLite on FreeBSD 14

Introduction How to Install SQLite on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 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 packet filtering, and […]

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Amazon Linux 2 — kernel-livepatch-4.14.348-265.562 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.348-265.562 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2024-179 Related CVEs: CVE-2024-39480 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: kdb: Fix buffer overflow during tab-complete (CVE-2024-39480) Table of contents Symptom & Impact Environment […]

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Oracle Linux 8 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — vulnerability — patch and remediation guide (ELSA-2024-0897)

🟠 High   ⏱ 15–60 min  Last verified: 1 August 2024 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-0897 Related CVEs: CVE-2022-41858 CVE-2023-1838 CVE-2023-6535 CVE-2023-4623 CVE-2023-6606 CVE-2024-0646 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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NetBSD 9.4 — xenkernel48 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — xenkernel48 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged xenkernel48<4.8.0nb1 for vulnerability class 'privilege-elevation'. Reference: https://xenbits.xen.org/xsa/advisory-212.html Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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How to Set Up Two-Factor Authentication for SSH with Google Authenticator on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication for SSH with Google Authenticator on RHEL 9

Password-based SSH authentication is a well-known attack vector, and even key-based authentication can be compromised if a private key is stolen. Adding Time-Based One-Time Password (TOTP) two-factor authentication creates a second layer of defense that is independent of the key. This tutorial shows you how to configure the Google Authenticator PAM module on RHEL 9 […]

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