Kernel Drivers

Common Problems 117917

Ubuntu 18.04 Network Interface Missing After Kernel Upgrade

🟡 Medium   ⏱ 5–30 min  Last verified: 30 November 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 — 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: 28 November 2020 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 112468

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

🟠 High   ⏱ 5–30 min  Last verified: 28 November 2020 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 115508

RHEL 7 Cron Job Runs but Script Fails Under SELinux

🟡 Medium   ⏱ 5–30 min  Last verified: 27 November 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 Configure Fine-Grained Password Policies on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Fine-Grained Password Policies on Windows Server 2012 R2

How to Configure Fine-Grained Password Policies on Windows Server 2012 R2 Prior to Windows Server 2008, Active Directory supported only a single password policy and account lockout policy per domain — defined in the Default Domain Policy GPO. This meant all users in the domain were subject to the same password rules regardless of their […]

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Common Problems 121511

Debian 9 – Network Interface Rename Breaks Connectivity – Persistent Naming Fix

🟠 High   ⏱ 5–30 min  Last verified: 25 November 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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How to Set Up Oracle Linux 8 in AWS — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Oracle Linux 8 in AWS

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up oracle linux 8 in aws both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Oracle Linux 8 in AWS, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Use PowerShell to Manage Hyper-V on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Use PowerShell to Manage Hyper-V on Windows Server 2012 R2

How to Use PowerShell to Manage Hyper-V on Windows Server 2012 R2 PowerShell is the most powerful and efficient way to manage Hyper-V on Windows Server 2012 R2. The Hyper-V module contains over 150 cmdlets covering every aspect of virtual machine lifecycle management, virtual switch configuration, storage management, networking, replication, and host configuration. Mastering PowerShell […]

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How to Set Up NFS High Availability on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up NFS High Availability on SLES 12

Introduction This tutorial covers How to Set Up NFS High Availability on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install NFS Server zypper install -y nfs-kernel-server […]

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How to Install Nginx on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Nginx on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying install nginx on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Nginx on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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