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How to Enable AppArmor on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Enable AppArmor on Debian 13

Introduction This guide explains how to Enable AppArmor 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 the standard repositories […]

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Common Problems 127182

CentOS Stream 10 – Common Problem 147 – Diagnosis and Fix

đźź  High   ⏱ 5–30 min  Last verified: 13 October 2025 Affected versions: CentOS Stream 10 đź“– ~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 JAVA_HOME on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure JAVA_HOME on Oracle Linux 10

Introduction How to Configure JAVA_HOME 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 124149

Oracle Linux 10 – kernel soft lockup warnings under sustained CPU pressure – Fix & Prevention

đźź  High   ⏱ 5–30 min  Last verified: 13 October 2025 Affected versions: Oracle Linux 10 đź“– ~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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NetBSD 9.4 — postgresql-client — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — postgresql-client — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 đź“– ~4 min read  â€˘  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-12818 Upstream summary: pkgsrc audit-packages flagged postgresql-client<13.23 for vulnerability class 'denial-of-service'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-12818 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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FreeBSD 13 — emacs-wayland — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — emacs-wayland — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 October 2025 Affected versions: FreeBSD 13 đź“– ~4 min read  â€˘  Source: FreeBSD VuXML VuXML topic: Emacs — Arbitrary code execution vulnerability Related CVEs: CVE-2024-53920 CVE-2025-1244 Upstream summary: Problem Description A shell injection vulnerability exists in GNU Emacs due to improper handling of custom man URI […]

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Common Problems 123995

Oracle Linux 10 – NetworkManager service not starting after config drift – Fix & Prevention

đźź  High   ⏱ 5–30 min  Last verified: 13 October 2025 Affected versions: Oracle Linux 10 đź“– ~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 Set Up a BIND9 DNS Server on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up a BIND9 DNS Server on Oracle Linux 10

Introduction How to Set Up a BIND9 DNS Server 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 […]

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NetBSD 9.4 — p5-JSON-XS — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-JSON-XS — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 đź“– ~4 min read  â€˘  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-40928 Upstream summary: pkgsrc audit-packages flagged p5-JSON-XS<4.04 for vulnerability class 'integer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-40928 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 13 — cmake — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — cmake — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 October 2025 Affected versions: Debian 13 (trixie) đź“– ~4 min read  â€˘  Source: Debian Security Tracker Related CVEs: CVE-2009-3560 CVE-2009-3720 CVE-2025-9301 Upstream summary: The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause […]

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