Logging Monitoring

Common Problems 118083

MySQL Service Won’t Start Due to InnoDB Error

🟡 Medium   ⏱ 5–30 min  Last verified: 22 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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How to Set Up GlusterFS on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up GlusterFS on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up GlusterFS on Oracle Linux 8 on Oracle Linux 8. 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 8 system with the default […]

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Common Problems 117893

Failed to Fetch Repository 404 During apt update

🟡 Medium   ⏱ 5–30 min  Last verified: 22 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 117889

Ubuntu 18.04 Stuck on Boot Splash After Kernel Update

🟡 Medium   ⏱ 5–30 min  Last verified: 22 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 117393

Ubuntu 20.04 LTS – apt update fails with NO_PUBKEY for third-party repository – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 October 2020 Affected versions: Ubuntu 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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SLES 15 — hplip — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — hplip — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 October 2020 Affected versions: SLES 15 📖 ~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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How to Use Microsoft Graph API with PowerShell on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Use Microsoft Graph API with PowerShell on Windows Server 2019

Introduction to Microsoft Graph API with PowerShell The Microsoft Graph API is the unified REST endpoint for Microsoft 365, Azure Active Directory, Teams, SharePoint, Outlook, OneDrive, and many other Microsoft cloud services. From Windows Server 2019, PowerShell can call Graph API endpoints directly using the Microsoft.Graph PowerShell SDK or raw Invoke-RestMethod calls with OAuth 2.0 […]

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Ubuntu 16.04 — node-bl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — node-bl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5159-1 Related CVEs: CVE-2020-8244 Upstream summary: It was discovered that bl incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Table of […]

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Oracle Linux 8 — Storage Management in Cockpit Web Console Can't Be Used With Multipath Devices — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Storage Management in Cockpit Web Console Can’t Be Used With Multipath Devices

🟠 High   ⏱ 5–30 min  Last verified: 21 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 36671939 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 121609

Debian 9 Journald Grows Too Large and Consumes Disk

🟡 Medium   ⏱ 5–30 min  Last verified: 21 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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