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Common Problems 117000

Ubuntu 22.04 LTS Cloud-Init Overwrites Manual Network Configuration

🟡 Medium   ⏱ 5–30 min  Last verified: 2 January 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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NetBSD 9.4 — gnome-session — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — gnome-session — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-11171 Upstream summary: pkgsrc audit-packages flagged gnome-session<2.29.92 for vulnerability class 'denial-of-service'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-11171 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Install MySQL 8 on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install MySQL 8 on CentOS Stream 9

Introduction How to Install MySQL 8 on CentOS Stream 9 on CentOS Stream 9 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 […]

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Oracle Linux 9 — edk2 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — edk2 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-6330)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 January 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6330 Related CVEs: CVE-2023-2650 CVE-2019-14560 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Configure GEOM Mirroring on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure GEOM Mirroring on FreeBSD 14

Introduction This guide explains how to Configure GEOM Mirroring on FreeBSD 14 on FreeBSD 14. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege […]

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How to Install VictoriaMetrics on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install VictoriaMetrics on FreeBSD 14

Introduction Deploying install victoriametrics on freebsd 14 on a FreeBSD 14 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]

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NetBSD 9.4 — upx — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — upx — multiple vulnerabilities (20 CVEs) — 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 Related CVEs: CVE-2019-14296 CVE-2019-14295 CVE-2019-20021 CVE-2019-20805 CVE-2020-24119 CVE-2020-27790 CVE-2023-23456 CVE-2021-43316  +12 more Upstream summary: pkgsrc audit-packages flagged upx-[0-9]* for vulnerability class 'buffer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-14296 Table of contents Symptom & Impact Environment […]

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Common Problems 120134

Debian 12 Hostname Resolution Warning sudo unable to resolve host

🟢 Low   ⏱ 5–30 min  Last verified: 1 January 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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FreeBSD 14 — libexif — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — libexif — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 January 2024 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libexif — multiple vulnerabilities Related CVEs: CVE-2005-0664 CVE-2012-2812 CVE-2012-2813 CVE-2012-2814 CVE-2012-2836 CVE-2012-2837 CVE-2012-2840 CVE-2012-2841  +2 more Upstream summary: Release notes: Lots of fixes exposed by fuzzers like AFL, ClusterFuzz, OSSFuzz […]

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NetBSD 9.4 — p5-Template-Toolkit — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-Template-Toolkit — 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 Related CVEs: CVE-2019-19781 Upstream summary: pkgsrc audit-packages flagged p5-Template-Toolkit<3.004 for vulnerability class 'unspecified'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-19781 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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