Operations

Common Problems 115517

subscription-manager Certificates Cause yum SSL Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 1 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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FreeBSD 13 — libexo — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libexo — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 January 2023 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: XFCE — Allows executing malicious .desktop files pointing to remote code Related CVEs: CVE-2022-32278 Upstream summary: XFCE Project reports: Prevent executing possibly malicious .desktop files from online sources (ftp://, http:// […]

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How to Configure Network File System Automount on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Network File System Automount 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 configure network file system automount on IBM AIX 7.3 […]

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Common Problems 111808

Windows Server 2022 — .NET Framework app fails after SchUseStrongCrypto enforcement — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 1 January 2023 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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Debian 11 — claws-mail — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — claws-mail — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-1558 CVE-2007-6208 CVE-2010-5109 CVE-2012-4507 CVE-2014-2576 CVE-2015-8614 CVE-2015-8708 CVE-2019-10735  +3 more Upstream summary: The APOP protocol allows remote attackers to guess the first 3 characters of a password via […]

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How to Use alt_disk_install for Upgrades on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use alt_disk_install for Upgrades on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use alt_disk_install for upgrades on ibm aix 7.1 on […]

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How to Configure Network Policy Server (NPS) on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Network Policy Server (NPS) on Windows Server 2012 R2

How to Configure Network Policy Server (NPS) on Windows Server 2012 R2 Network Policy Server (NPS) is the Microsoft implementation of a RADIUS (Remote Authentication Dial-In User Service) server on Windows Server 2012 R2. NPS centralizes authentication, authorization, and accounting for network access, including VPN connections, wireless access points, 802.1X wired authentication, and dial-up connections. […]

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Debian 11 — x265 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — x265 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-13135 Upstream summary: A NULL Pointer Dereference exists in VideoLAN x265, as used in libbpg 0.9.7 and other products, because the CUData::initialize function in common/cudata.cpp mishandles memory-allocation failure. […]

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How to Configure Apache2 with mod_security on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Apache2 with mod_security on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure apache2 with mod_security on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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