Logging Monitoring

IBM AIX 7.2 — CVE-2022-22454 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-22454 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 28 December 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-22454, IBM Support Bulletin CVE: CVE-2022-22454 NVD summary: IBM InfoSphere Information Server 11.7 could allow a locally authenticated attacker to execute arbitrary commands on the system by sending a specially crafted request. […]

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How to Configure SELinux on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure SELinux on RHEL 8

SELinux (Security-Enhanced Linux) is a mandatory access control (MAC) framework built into the Linux kernel and enabled by default on every RHEL 8 installation. Unlike discretionary access controls such as standard Unix permissions, SELinux enforces policy rules that confine processes to only the files, sockets, and capabilities they legitimately require, limiting the blast radius of […]

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Common Problems 118019

Ubuntu 18.04 LTS Docker Service Fails to Start

🟠 High   ⏱ 5–30 min  Last verified: 27 December 2022 Affected versions: 18.04 LTS 📖 ~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 7.3 — CVE-2022-40747 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2022-40747 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 27 December 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2022-40747, IBM Support Bulletin CVE: CVE-2022-40747 NVD summary: "IBM InfoSphere Information Server 11.7 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit […]

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Common Problems 113005

Windows Server 2016 – AD CS certificate template error – The requested certificate template is not supported – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 December 2022 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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Debian 11 — hunspell — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — hunspell — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16707 Upstream summary: Hunspell 1.7.0 has an invalid read operation in SuggestMgr::leftcommonsubstring in suggestmgr.cxx. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 114416

RPM Database Corruption on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 27 December 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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Initial Server Setup with IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

Initial Server Setup with 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 server setup with ibm aix 7.3 on IBM AIX […]

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Common Problems 111646

Windows Server 2022 – Failover cluster loses quorum after single node failure – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 December 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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