Kernel Drivers

How to Configure Desired State Configuration (DSC) Pull Server on Windows Server 2019

• February 3, 2021
• Tutorials
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What Is PowerShell Desired State Configuration? Desired State Configuration (DSC) is a PowerShell management platform that allows administrators to declaratively define the desired state of servers and continuously enforce that state. Rather than running imperative scripts that might leave servers in inconsistent states, DSC configurations describe what a server should look like—which features are installed, […]

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How to Configure Node Exporter on Oracle Linux 8

• February 2, 2021
• Oracle Linux
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Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure node exporter on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Node Exporter on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Windows Server 2016 — NLB cluster convergence loops after adding new node with mismatched host priority — Fix & Prevention

• February 2, 2021
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 2 February 2021 Affected versions: Windows Server 2016 📖 ~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 Errors […]

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Windows Server 2019 — Computer secure channel broken: machine cannot authenticate to domain — Fix & Prevention

• February 2, 2021
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 2 February 2021 Affected versions: Windows Server 2019 📖 ~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 Errors […]

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How to Mount NFS Shares at Boot on Debian 9

• February 2, 2021
• Linux
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Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up mount nfs shares at boot 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 step carefully […]

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How to Install Xdebug for PHP on RHEL 8

• February 2, 2021
• Linux
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Xdebug is the de facto debugging and profiling extension for PHP, giving you step-by-step execution, variable inspection, stack traces, and code coverage reports. Installing it on RHEL 8 requires a few extra steps compared to other distributions because RHEL’s default PHP packages do not include Xdebug in their repos. This tutorial walks through installation from […]

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How to Set Up IPsec VPN with Libreswan on Oracle Linux 8

• February 1, 2021
• Oracle Linux
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Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up ipsec vpn with libreswan on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up IPsec VPN with Libreswan on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, […]

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How to Configure XFS on Oracle Linux 8

• January 31, 2021
• Oracle Linux
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Introduction How to Configure XFS on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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How to Configure Audit Logging on Oracle Linux 8

• January 30, 2021
• Oracle Linux
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Introduction How to Configure Audit Logging on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Amazon Linux 2 — kernel-livepatch-4.14.252-195.481 — vulnerability — patch and remediation guide

• January 30, 2021
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2021-070 Related CVEs: CVE-2021-4002 Upstream summary: No CVE associated with this advisory Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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