Kernel Drivers

Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1578)

• August 10, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 10 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1578 Related CVEs: CVE-2020-14314 CVE-2020-12362 CVE-2019-18811 CVE-2020-15437 CVE-2020-25704 CVE-2020-12464 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Install Minio as S3-Compatible Storage on Debian 11

• August 10, 2022
• Linux
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Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install minio as s3-compatible storage on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully […]

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Windows Server 2012 R2 — Folder redirection GPO fails to redirect Documents to file share — Fix & Prevention

• August 9, 2022
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 9 August 2022 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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Windows Server 2016 – VSS snapshot failures from backup filter driver collisions – Fix and Prevention

• August 9, 2022
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 9 August 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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How to Set Up ProxySQL for MySQL Load Balancing on Debian 9

• August 9, 2022
• Linux
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Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up proxysql for mysql load balancing 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 […]

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Debian 11 — xen — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• August 9, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 9 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-2938 CVE-2010-4255 CVE-2011-1166 CVE-2011-1583 CVE-2011-1898 CVE-2011-3131 CVE-2011-3262 CVE-2011-4111  +12 more Upstream summary: arch/x86/hvm/vmx/vmcs.c in the virtual-machine control structure (VMCS) implementation in the Linux kernel 2.6.18 on Red Hat […]

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How to Install and Configure InfluxDB 2 on Debian 11

• August 9, 2022
• Linux
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Introduction How to Install and Configure InfluxDB 2 on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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Debian 11 – unattended-upgrades Leaves Pending Reboot Drift – Controlled Patch Flow

• August 8, 2022
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 8 August 2022 Affected versions: Debian 11 📖 ~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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Amazon Linux 2 — kernel-livepatch-5.10.135-122.509 — vulnerability — patch and remediation guide

• August 8, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2022-093 Related CVEs: CVE-2022-2588 Upstream summary: A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user to crash […]

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High CPU Usage From Kworker Or System Daemons

• August 8, 2022
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 8 August 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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