Logging Monitoring

Alpine Linux 3.18 — hostapd — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — hostapd — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.9-r3 📖 ~4 min read  •  Source: Alpine secdb entry — hostapd 2.9-r3 Related CVEs: CVE-2021-30004 CVE-2020-12695 CVE-2019-16275 CVE-2019-11555 CVE-2019-9496 CVE-2017-13077 CVE-2017-13078 CVE-2017-13079  +8 more Upstream summary: Alpine main repository for vv3.18 ships hostapd 2.9-r3 which […]

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CentOS Stream 9 — pmix — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — pmix — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 May 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2024:2199 Related CVEs: CVE-2023-41915 Upstream summary: The Process Management Interface (PMI) provides process management functions for MPI implementations. PMI Exascale (PMIx) provides an extended version of the PMI standard specifically designed […]

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How to Install Nexus Repository Manager on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Nexus Repository Manager on RHEL 7

How to Install Nexus Repository Manager on RHEL 7 Sonatype Nexus Repository Manager is the industry-standard artifact repository used by thousands of enterprises to proxy, host, and distribute software packages. Whether you need to cache Maven Central artifacts to reduce CI/CD build times, host internal Docker images, store npm packages, or serve PyPI packages to […]

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Common Problems 124507

Oracle Linux 9 – Common Problem 005 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2023 Affected versions: Oracle Linux 9 📖 ~3 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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Gentoo Linux — media-gfx/graphicsmagick — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-gfx/graphicsmagick — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202407-15 Related CVEs: CVE-2020-12672 CVE-2022-1270 Upstream summary: Multiple vulnerabilities have been discovered in GraphicsMagick. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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How to Configure Persistent Volumes in Kubernetes on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Persistent Volumes in Kubernetes on Oracle Linux 9

Introduction This tutorial demonstrates how to Configure Persistent Volumes in Kubernetes 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 […]

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Common Problems 117538

Ubuntu 20.04 LTS – DNS resolution fails with Temporary failure in name resolution

🟠 High   ⏱ 5–30 min  Last verified: 20 May 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 […]

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Windows Server 2019 — KB5028228 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5028228 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5028228 • MSRC update-guide entry Related CVEs: CVE-2023-35352 CVE-2023-35365 CVE-2023-35366 CVE-2023-35367 CVE-2023-32057 CVE-2023-35297 CVE-2023-21756 CVE-2023-33166  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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Common Problems 115493

RHEL 7 – NTP Time Drift Causes Kerberos and TLS Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 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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