Common Problems

Common Problems 118051

Ubuntu 18.04 Grub Rescue Prompt After Disk Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 17 October 2020 📖 ~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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Common Problems 113080

Windows Server 2016 — SMB access fails because NetBIOS name resolution is broken — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 17 October 2020 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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SLES 12 — hplip — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — hplip — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 October 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-RU-2025:0270-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-6923 CVE-2010-4267 CVE-2011-2697 CVE-2013-4325 CVE-2013-6402 CVE-2013-6427 CVE-2015-0839 CVE-2004-0801  +1 more Upstream summary: The HP Linux Imaging and Printing (HPLIP) software may potentially be affected by […]

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Oracle Linux 8 — olcne — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — olcne — vulnerability — patch and remediation guide (ELSA-2021-9028)

🟠 High   ⏱ 15–60 min  Last verified: 17 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9028 Related CVEs: CVE-2020-28914 CVE-2020-8554 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 115623

tuned Profile Misconfiguration Causes Performance Drop

🟡 Medium   ⏱ 5–30 min  Last verified: 16 October 2020 📖 ~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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Oracle Linux 8 — Presence of beignet Package Could Result in Dependency Issue During An Upgrade — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Presence of beignet Package Could Result in Dependency Issue During An Upgrade

🟠 High   ⏱ 5–30 min  Last verified: 16 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 31213935 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 […]

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Common Problems 114956

RHEL 8 SSH Login Delay Caused By Reverse DNS And GSSAPI

🟡 Medium   ⏱ 5–30 min  Last verified: 16 October 2020 📖 ~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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Amazon Linux 2 — kernel-livepatch-4.14.165-133.209 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.165-133.209 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2020-002 Related CVEs: CVE-2019-15918 CVE-2019-2009 CVE-2019-20096 CVE-2020-10942 CVE-2020-8648 Upstream summary: An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures […]

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Common Problems 113428

Windows Server 2012 R2 — WSUS Scan Returns 0x8024401c Timeout During Patch Cycle — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 October 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Common Problems 113128

Windows Server 2016 – PnP driver rollback loop keeps reinstalling faulty package – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 16 October 2020 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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