Logging Monitoring

IBM AIX 7.3 — CVE-2021-39087 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2021-39087 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 13 January 2023 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2021-39087, IBM Support Bulletin CVE: CVE-2021-39087 NVD summary: IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5, 6.1.0.0 through 6.1.0.4, and 6.1.1.0 through 6.1.1.1 could allow an authenticated user to obtain sensitive […]

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Common Problems 114614

RHEL 9: MariaDB Fails to Start After Package Update

🟡 Medium   ⏱ 5–30 min  Last verified: 13 January 2023 📖 ~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 112981

Windows Server 2016 — Update Scan Fails with 0x8024402c Due to Proxy Misconfiguration — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 13 January 2023 Affected versions: Windows Server 2016 📖 ~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 Use IBM FlashSystem with AIX on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use IBM FlashSystem with AIX on IBM AIX 7.3

Introduction IBM AIX 7.3 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use ibm flashsystem with aix on IBM AIX 7.3 […]

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FreeBSD 13 — mat — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mat — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 January 2023 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mat2 — directory traversal/arbitrary file read during ZIP file processing Related CVEs: CVE-2022-35410 Upstream summary: mat2 (aka metadata anonymisation toolkit) before 0.13.0 allows ../ directory traversal during the ZIP archive […]

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Common Problems 111661

Windows Server 2022 — Application Pool recycling too frequently causing session state loss on IIS — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 13 January 2023 Affected versions: Windows Server 2022 📖 ~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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How to Add and Remove Windows Server Roles and Features on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Add and Remove Windows Server Roles and Features on Windows Server 2012 R2

Introduction Windows Server 2012 R2 uses a role-based architecture where specific services are added as “Server Roles” (major features like IIS, AD DS, DHCP) and “Features” (supporting components like .NET Framework, RSAT). PowerShell’s Server Manager module provides complete programmatic control over role and feature installation, making it possible to automate server configuration with precise reproducibility. […]

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Debian 11 — haskell-cmark-gfm — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — haskell-cmark-gfm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-5238 Upstream summary: The table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown […]

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How to Configure Azure Monitor for Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Azure Monitor for Windows Server 2022

How to Set Up a Reverse Proxy with IIS ARR on Windows Server 2022 Internet Information Services (IIS) with Application Request Routing (ARR) and URL Rewrite transforms Windows Server 2022 into a powerful reverse proxy capable of forwarding requests to backend applications, performing SSL offloading, and providing load balancing across server farms. This guide covers […]

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Debian 10 — blender — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — blender — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 January 2023 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-0544 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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