Logging Monitoring

Common Problems 115502

Systemd unit fails with dependency errors

🟡 Medium   ⏱ 5–30 min  Last verified: 9 November 2022 📖 ~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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Common Problems 113542

Windows Server 2012 R2 VSS Snapshot Failures Due to Low Shadow Copy Storage – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 November 2022 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Set Up Event Log Forwarding on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Event Log Forwarding on Windows Server 2012 R2

How to Set Up Event Log Forwarding on Windows Server 2012 R2 Event Log Forwarding allows Windows Server 2012 R2 to collect event logs from multiple remote computers into a central Windows Event Collector (WEC) server. This centralized logging infrastructure is essential for security monitoring, compliance auditing, and incident response. Windows Event Forwarding (WEF) uses […]

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Common Problems 111725

Windows Server 2022 Failover Cluster Quorum Lost After Node Maintenance – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 9 November 2022 Affected versions: Windows Server 2022 📖 ~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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IBM AIX 7.1 — CVE-2022-22496 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2022-22496 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 9 November 2022 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2022-22496, IBM Support Bulletin CVE: CVE-2022-22496 NVD summary: While a user account for the IBM Spectrum Protect Server 8.1.0.000 through 8.1.14 is being established, it may be configured to use SESSIONSECURITY=TRANSITIONAL. While […]

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How to Install Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install Windows Server 2012 R2

Introduction Windows Server 2012 R2 is a mature, enterprise-grade operating system that brought significant improvements to virtualisation, storage, and hybrid cloud integration when it was released. Although it reached end-of-life in October 2023, many organisations continue to run Windows Server 2012 R2 in production, and understanding its installation and initial configuration remains essential for administrators […]

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AlmaLinux 9 — mingw-pixman — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — mingw-pixman — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:2525 Related CVEs: CVE-2022-44638 Upstream summary: Pixman is a pixel manipulation library for the X Window System and Cairo. Security Fix(es): * pixman: Integer overflow in pixman_sample_floor_y leading to heap out-of-bounds write […]

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How to Set Up VPN Site-to-Site with Windows RRAS on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up VPN Site-to-Site with Windows RRAS on Windows Server 2022

Site-to-Site VPN Overview A site-to-site (S2S) VPN connects two physically separate networks — typically branch offices, data centers, or partner networks — over the public internet or a WAN link, making them appear as a single unified network. Unlike remote access VPN where individual users connect from their devices, S2S VPN operates between routers or […]

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Debian 11 — mlmmj — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mlmmj — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-4896 Upstream summary: Multiple directory traversal vulnerabilities in the mlmmj-php-admin web interface for Mailing List Managing Made Joyful (mlmmj) 1.2.15 through 1.2.17 allow remote authenticated users to overwrite, […]

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Debian 11 — tinymux — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tinymux — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-1655 CVE-2007-1958 CVE-2007-1959 Upstream summary: Buffer overflow in the fun_ladd function in funmath.cpp in TinyMUX before 20070126 might allow remote attackers to cause a denial of service (crash) […]

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