Kernel Drivers

How to Configure Chocolatey for Package Management on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Chocolatey for Package Management on Windows Server 2012 R2

How to Configure Chocolatey for Package Management on Windows Server 2012 R2 Chocolatey is the de facto package manager for Windows, providing a command-line interface for installing, updating, and removing software packages in a repeatable, scriptable, and auditable way. On Windows Server 2012 R2, Chocolatey works extremely well and is one of the most effective […]

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How to Set Up a PKI Infrastructure with AD CS on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up a PKI Infrastructure with AD CS on Windows Server 2012 R2

How to Set Up a PKI Infrastructure with AD CS on Windows Server 2012 R2 Public Key Infrastructure (PKI) built on Active Directory Certificate Services (AD CS) provides the digital certificate foundation for enterprise security: SSL/TLS certificates for web servers and internal services, S/MIME for email encryption, smart card authentication, code signing, and IPsec encryption. […]

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Common Problems 118429

Ubuntu 16.04 LTS SSH Authentication Fails After Hardening

🟠 High   ⏱ 5–30 min  Last verified: 29 January 2020 Affected versions: 16.04 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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How to Install ClickHouse on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install ClickHouse on Debian 10

Introduction This guide explains how to Install ClickHouse on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard repositories […]

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Common Problems 112556

Windows Server 2019 – Kernel nonpaged pool leak from third-party driver – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 January 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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How to Configure Server Core on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Server Core on Windows Server 2012 R2

How to Configure Server Core on Windows Server 2012 R2 Server Core is a minimal installation option for Windows Server 2012 R2 that installs only the essential Windows components needed to support server roles, excluding the full desktop shell, Windows Explorer, Internet Explorer, and most GUI management tools. The result is a significantly reduced attack […]

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How to Install Terraform on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Terraform on RHEL 8

Terraform by HashiCorp is the industry-standard tool for provisioning and managing infrastructure as code (IaC) across cloud providers, on-premises platforms, and SaaS APIs. On RHEL 8 you can install Terraform directly from the official HashiCorp RPM repository, keeping it up to date through the standard dnf package manager. This tutorial walks through adding the HashiCorp […]

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How to Set Up Jaeger Distributed Tracing on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Jaeger Distributed Tracing on Debian 10

Introduction Deploying set up jaeger distributed tracing on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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How to Configure a DSC Pull Server on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure a DSC Pull Server on Windows Server 2012 R2

How to Configure a DSC Pull Server on Windows Server 2012 R2 Desired State Configuration (DSC) is a PowerShell-based configuration management platform built into Windows Server 2012 R2. In push mode, an administrator pushes configurations directly to individual nodes. In pull mode, nodes periodically contact a central Pull Server to retrieve their configuration and report […]

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