November 2020 - Page 5 of 66

How To Create a Multi-Node MySQL Cluster on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Create a Multi-Node MySQL Cluster on Ubuntu 16.04

MySQL cluster is a software technology which provides high availability and throughput. In short, there is one or more management nodes which control the data nodes (where data is stored). After consulting with the management node, clients (MySQL clients, servers, or native APIs) connect directly to the data nodes.

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How To Configure a FreeIPA Client on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Configure a FreeIPA Client on CentOS 7

FreeIPA is an open-source security solution for Linux which provides account management and centralized authentication, similar to Microsoft’s Active Directory. In this tutorial, we will be configuring a CentOS 7 machine to authenticate against an existing FreeIPA server.

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How to Configure Group Policy on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Group Policy on Windows Server 2016

How to Configure Windows Server 2016 Group Policy Group Policy is a powerful feature of Active Directory that enables centralized management and configuration of operating systems, applications, and user settings across an Active Directory environment. In Windows Server 2016, Group Policy is administered through the Group Policy Management Console (GPMC) and uses Group Policy Objects […]

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Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2020-5473)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5473 Related CVEs: CVE-2020-16166 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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Common Problems 115988

cloud-init rewrites netplan and breaks static IP

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 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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Common Problems 115451

Legacy service Command Fails for SysV Script on RHEL 7

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 112577

Windows Server 2019 — Netlogon service breaks secure channel with PDC emulator — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 03 May 2027 Affected versions: Windows Server 2019 📖 ~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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Common Problems 112468

Windows Server 2019 — Post-Update Boot Loop Triggered by Incompatible Storage Driver — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 May 2026 Affected versions: Windows Server 2019 📖 ~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 Implement Just-In-Time (JIT) Administration on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Implement Just-In-Time (JIT) Administration on Windows Server 2016

Introduction Just-In-Time (JIT) Administration on Windows Server 2016 is a Privileged Access Management (PAM) model that grants elevated privileges only when needed and only for the minimum time required to complete a task. Using the PAM feature in Active Directory (introduced in Windows Server 2016), administrators request time-limited group membership that expires automatically after a […]

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