Logging Monitoring

Common Problems 115033

RHEL 8 sudo command delay caused by SSSD offline lookups

🟡 Medium   ⏱ 5–30 min  Last verified: 10 June 2021 📖 ~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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Arch Linux — kdeconnect — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — kdeconnect — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202010-7 Related CVEs: CVE-2020-26164 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 20.08.1-1. Fixed in: 20.08.2-1. Group: AVG-1241. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — WebCalendar-devel — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — WebCalendar-devel — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: WebCalendar — multiple vulnerabilities Related CVEs: CVE-2012-0846 CVE-2012-1495 CVE-2012-1496 Upstream summary: Hanno Boeck reports: Fixes [are now available] for various security vulnerabilities including LFI (local file inclusion), XSS (cross site […]

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FreeBSD 13 — phoenix — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — phoenix — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: firefox & mozilla — multiple vulnerabilities Related CVEs: CVE-2004-0762 CVE-2004-0765 CVE-2004-0904 CVE-2004-0905 CVE-2004-0908 CVE-2004-0909 CVE-2004-1156 CVE-2004-1157  +12 more Upstream summary: A Mozilla Foundation Security Advisory reports of multiple issues: Heap […]

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How to Configure WSUS for Automated Patch Management on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure WSUS for Automated Patch Management on Windows Server 2012 R2

How to Configure WSUS for Automated Patch Management on Windows Server 2012 R2 Windows Server Update Services (WSUS) is Microsoft’s enterprise patch management solution that allows administrators to approve, deploy, and report on Windows and Microsoft software updates across their environment from a central server. By hosting updates internally, WSUS reduces external bandwidth consumption, gives […]

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Oracle Linux 8 — Error: " mcelog service does not support this processor " — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Error: ” mcelog service does not support this processor “

🟠 High   ⏱ 5–30 min  Last verified: 9 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29501190 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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AlmaLinux 8 — xorg-x11-drv-qxl — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — xorg-x11-drv-qxl — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:1661 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Install Pulumi on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Pulumi on FreeBSD 13

Introduction Deploying install pulumi on freebsd 13 on a FreeBSD 13 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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FreeBSD 13 — pngcheck — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pngcheck — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pngcheck — Buffer-overrun vulnerability Upstream summary: The libpng project reports: pngcheck versions 3.0.0 and earlier have a pair of buffer-overrun bugs related to the sPLT and PPLT chunks (the latter […]

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Common Problems 112403

Windows Server 2019 — Conditional forwarders timing out across site-to-site VPN links on Windows Server 2019 DNS — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 June 2021 Affected versions: Windows Server 2019 📖 ~2 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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