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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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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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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 Configure syslog-ng on FreeBSD 12

• February 1, 2021
• FreeBSD
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Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure syslog-ng on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This […]

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How to Set Up Certificate Services (AD CS) on Windows Server 2019

• January 31, 2021
• Tutorials
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How to Set Up Certificate Services (AD CS) on Windows Server 2019 Active Directory Certificate Services (AD CS) provides a Public Key Infrastructure (PKI) for issuing and managing digital certificates within an organization. These certificates enable TLS/SSL for websites, smart card authentication, email encryption (S/MIME), code signing, encrypted file systems (EFS), and IPsec. Windows Server […]

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snapd Installation or Refresh Failures on Ubuntu 16.04

• January 28, 2021
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 28 January 2021 📖 ~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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Windows Server 2019 — NPS RADIUS service rejects all authentication requests — Fix & Prevention

• January 27, 2021
• FreeBSD
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🟠 High   ⏱ 5–30 min  Last verified: 27 January 2021 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 Configure Hyper-V Shielded VMs on Windows Server 2019

• January 27, 2021
• Tutorials
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Introduction to Hyper-V Shielded VMs Shielded VMs are a Windows Server 2019 Hyper-V security feature that protects virtual machine data from administrators with physical or Hyper-V host access. A shielded VM’s virtual hard disk is encrypted with BitLocker, its state is sealed by virtual TPM (vTPM), and it can only run on hosts that have […]

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How to Install Prometheus and Grafana on RHEL 8

• January 26, 2021
• Linux
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Prometheus and Grafana are two of the most widely adopted open-source tools for infrastructure monitoring and metrics visualization. Prometheus scrapes and stores time-series data from your systems, while Grafana turns that data into rich, interactive dashboards. Together they give RHEL 8 administrators a powerful, production-ready observability stack. This tutorial walks through installing both tools from […]

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How to Configure HAProxy SSL Termination on Oracle Linux 8

• January 24, 2021
• Oracle Linux
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Introduction How to Configure HAProxy SSL Termination 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 […]

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