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AD CS + Azure Hybrid PKI Architecture: Extending On-Premises CA to the Cloud
PKI 12 May, 2026 · 08 Mins read

AD CS + Azure Hybrid PKI Architecture: Extending On-Premises CA to the Cloud

Design hybrid PKI architecture combining on-premises AD CS with Azure services. Covers Intune certificate connector, Azure AD App Proxy for NDES, Windows Hello for Business, Intune Cloud PKI, and Azure Key Vault integration.

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AD CS Certificate Templates Explained: V1-V4, Configuration & Security Hardening
PKI 12 May, 2026 · 07 Mins read

AD CS Certificate Templates Explained: V1-V4, Configuration & Security Hardening

Understand AD CS certificate templates — versions V1 through V4, subject name handling, key usage, enrollment permissions, auto-enrollment, and how to prevent ESC1-ESC8 privilege escalation attacks through proper template configuration.

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AD CS Complete Architecture Guide: Designing Enterprise Microsoft PKI
PKI 11 May, 2026 · 09 Mins read

AD CS Complete Architecture Guide: Designing Enterprise Microsoft PKI

Design and deploy Microsoft Active Directory Certificate Services (AD CS) with proper hierarchy, role separation, template strategy, CRL distribution, and high availability. Covers 2-tier and 3-tier architectures for enterprise environments.

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AD CS Troubleshooting: Fix Every Common Certificate Services Error
PKI 12 May, 2026 · 05 Mins read

AD CS Troubleshooting: Fix Every Common Certificate Services Error

Fix every common AD CS error — enrollment denied, template not available, RPC server unavailable, CRL failures, auto-enrollment not working, and certificate chain issues. Includes exact certutil commands and event log analysis.

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Fix 'The Certificate Template Is Not Available' in AD CS
PKI 15 May, 2026 · 06 Mins read

Fix 'The Certificate Template Is Not Available' in AD CS

Fix the AD CS error where certificate templates aren't available for enrollment. Covers template publishing, permissions, version compatibility, and CA type issues with certutil commands.

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Fix 'The Revocation Function Was Unable to Check Revocation' Error
PKI 15 May, 2026 · 06 Mins read

Fix 'The Revocation Function Was Unable to Check Revocation' Error

Fix the Windows revocation check error that blocks certificate validation, smart card logon, code signing, and HTTPS. Covers CRL distribution point issues, OCSP failures, and certutil diagnostics.

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Fix 'RPC Server is Unavailable' in AD CS & PKI Environments
PKI 15 May, 2026 · 06 Mins read

Fix 'RPC Server is Unavailable' in AD CS & PKI Environments

Fix the 'RPC server is unavailable' error in Active Directory Certificate Services. Covers certificate enrollment failures, CA unreachable, auto-enrollment broken — with certutil, firewall, and DNS fixes.

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IIS Certificate Binding & Troubleshooting: Complete Guide
SSL/TLS 15 May, 2026 · 06 Mins read

IIS Certificate Binding & Troubleshooting: Complete Guide

Master IIS SSL certificate binding — import PFX certificates, configure SNI, manage wildcard certs, automate with PowerShell, and fix common binding issues including disappearing bindings, port conflicts, and certificate dropdown problems.

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NDES Configuration & Troubleshooting: Complete Guide for SCEP Enrollment
PKI 11 May, 2026 · 08 Mins read

NDES Configuration & Troubleshooting: Complete Guide for SCEP Enrollment

Configure Microsoft NDES (Network Device Enrollment Service) for SCEP certificate enrollment. Covers IIS setup, certificate templates, registration authority, challenge passwords, and fixes for every common NDES error.

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StrongCertificateBindingEnforcement Explained: KB5014754 & Certificate Mapping Changes
PKI 12 May, 2026 · 06 Mins read

StrongCertificateBindingEnforcement Explained: KB5014754 & Certificate Mapping Changes

Understand Microsoft's StrongCertificateBindingEnforcement changes (KB5014754) — what strong certificate mapping means, the enforcement timeline, how to prepare, and how to fix authentication failures after September 2025.

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