Logging Monitoring

Alpine Linux edge — openjdk11 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• October 29, 2020
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 11.0.9_p11-r0 📖 ~4 min read  •  Source: Alpine secdb entry — openjdk11 11.0.9_p11-r0 Related CVEs: CVE-2020-14779 CVE-2020-14781 CVE-2020-14782 CVE-2020-14792 CVE-2020-14796 CVE-2020-14797 CVE-2020-14798 CVE-2020-14803  +12 more Upstream summary: Alpine community repository for vedge ships openjdk11 11.0.9_p11-r0 which […]

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Debian 10 — firefox-esr — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• October 29, 2020
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 29 October 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9811 CVE-2019-9812 CVE-2019-11757 CVE-2019-17005 CVE-2019-17026 CVE-2019-20503 CVE-2020-6831 CVE-2020-12399  +12 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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How to Configure User Account Control on Windows Server 2016

• October 29, 2020
• Tutorials
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How to Configure Windows Server 2016 User Account Control User Account Control (UAC) is a security feature in Windows Server 2016 that helps prevent unauthorized changes to the operating system by prompting for confirmation or credentials when administrative tasks are performed. UAC separates the standard user token from the administrator token, ensuring that even users […]

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Oracle Linux 8 — maven:3.6 security and — enhancement update — new behaviour and fixes (ELSA-2022-1860)

• October 28, 2020
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 28 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1860 Related CVEs: CVE-2020-13956 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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Cron Jobs Not Running Due to Environment Path Issues

• October 28, 2020
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 2020 Affected versions: Debian 9 📖 ~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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SSH Login Fails with Public Key Authentication

• October 28, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 28 October 2020 Affected versions: Debian 10 📖 ~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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Ubuntu 20.04 LTS apt Lock Contention During Auto Updates

• October 28, 2020
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 2020 Affected versions: 20.04 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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Windows Server 2012 R2 — sIDHistory cleanup needed to retire deprecated SIDs after migration — Fix & Prevention

• October 28, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 28 October 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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FreeBSD 12 — payara — multiple vulnerabilities (15 CVEs) — patch and remediation guide

• October 28, 2020
• BSD
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🟠 High   ⏱ 15–60 min  Last verified: 28 October 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Payara — path trasversal flaw via either loc/con parameters in Eclipse Mojarra Related CVEs: CVE-2016-1000031 CVE-2016-5528 CVE-2017-12615 CVE-2017-3239 CVE-2017-3247 CVE-2017-3249 CVE-2017-3250 CVE-2018-14371  +7 more Upstream summary: Payara Releases reports: The […]

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How to Install Netdata on Oracle Linux 8

• October 28, 2020
• Oracle Linux
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Introduction How to Install Netdata on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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