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How to Perform Disaster Recovery Testing on Windows Server 2022
Why Disaster Recovery Testing Matters Disaster recovery plans that are never tested are disaster plans that will fail when you need them most. On Windows Server 2022 environments, backups may silently fail, recovery procedures may have drifted from reality, and key personnel may have changed — none of which becomes apparent until an actual incident. […]
Windows Server 2016 — KB5033369 — multiple vulnerabilities (12 CVEs) — patch and remediation guide
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read • Source: Microsoft KB5033369 • MSRC update-guide entry Related CVEs: CVE-2023-35641 CVE-2023-35628 CVE-2023-35630 CVE-2023-36011 CVE-2023-21740 CVE-2023-20588 CVE-2023-36003 CVE-2023-36004 +4 more Affected components: Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root […]
Oracle Linux 9 — git — security and stability fixes — required update (ELSA-2023-2319)
🟡 Medium ⏱ 10–30 min Last verified: 9 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2023-2319 Related CVEs: CVE-2022-39253 CVE-2022-24765 CVE-2022-29187 CVE-2022-39260 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]
Ubuntu 20.04 LTS – netplan apply fails due to YAML syntax errors
🟠 High ⏱ 5–30 min Last verified: 9 April 2023 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]
How to Install PHP 8.3 on Oracle Linux 9
Introduction This tutorial demonstrates how to Install PHP 8.3 on Oracle Linux 9 on Oracle Linux 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 9 system with the default […]
Amazon Linux 2023 — libksba — vulnerability — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read • Source: Amazon Linux advisory ALAS2023-2023-088 Related CVEs: CVE-2022-3515 Upstream summary: A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for […]
Windows Server 2022 — IIS site returns 503 Service Unavailable due identity password expiry — Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 9 April 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 […]
IBM AIX 7.1 — CVE-2023-43035 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 15–45 min Last verified: 9 April 2023 Affected versions: IBM AIX 7.1 📖 ~4 min read • Source: NVD CVE-2023-43035, IBM Support Bulletin CVE: CVE-2023-43035 NVD summary: IBM Sterling Control Center 6.2.1, 6.3.1, and 6.4.0 allows web pages to be stored locally which can be read by another user on the […]
Alpine Linux edge — rxvt-unicode — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 9.31-r0 📖 ~4 min read • Source: Alpine secdb entry — rxvt-unicode 9.31-r0 Related CVEs: CVE-2022-4170 CVE-2021-33477 Upstream summary: Alpine community repository for vedge ships rxvt-unicode 9.31-r0 which addresses CVE-2022-4170. Table of contents Symptom & Impact […]