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Vincent Fan's Tech Notes

Author: Vincent Fan Topics: Exchange Server / Microsoft 365 / Azure Focus: Practical guides, architecture design, troubleshooting

What's Inside​

This site focuses on in-depth practical content for Microsoft enterprise technology stack, covering:

  • Exchange Server: Hybrid deployment, certificate management, transport rules, troubleshooting
  • Microsoft 365: Exchange Online, security & compliance (Purview/DLP), Intune/Entra
  • Azure: Subscription governance, network security, application platform, AI/OpenAI

How to Navigate​

  • Left Sidebar: Organized by topic (Exchange → M365 → Azure)
  • Search Function: Quick keyword search in the top-right corner
  • Code Blocks: All commands can be copied and used directly
  • Mermaid Diagrams: Architecture and flowcharts to help understand complex concepts

Content Features​

Real-World Focused​

All articles come from actual project experience, not textbook-style theory.

Deep Technical Details​

Not just "how to do it," but more importantly "why" and "what to do when errors occur."

Example Code​

Provides PowerShell and Python script examples that can be directly used or modified in your environment.

# Example: Check Exchange certificate
Get-ExchangeCertificate | Format-List FriendlyName,Subject,Thumbprint,NotAfter

Architecture Diagrams​

Uses Mermaid to create architecture and flow diagrams, clearly presenting system relationships.

Quick Start​

Recommended reading path:

  1. Exchange Beginners: Exchange Server Overview
  2. Hybrid Deployment: Hybrid & M365 Integration
  3. Certificate Issues: Certificate & TLS Best Practices
  4. M365 Management: Tenant Security & Compliance
  5. Azure Introduction: Azure Overview

Writing Standards
  • Example Exchange commands are executed on various Exchange version need to confirm which version is applicable.