Palanikumar AnnamalaiCloud, infrastructure, identity and security

Technical writing

Articles

Long-form engineering pieces on Microsoft infrastructure, identity, messaging and security: the problem, the evidence, the mechanism and the fix. Every article states the versions it was tested on and when it was last reviewed.

Nothing published yet.

Shorter technical notes appear on LinkedIn; this site is where the deeper engineering pieces will live.

Planned topics, not yet published

Working titles. None of these is available yet, and the order may change.

  1. MessagingFrom Exchange 5.5 to Exchange Online: what three decades of messaging change taught me
  2. IdentityPreparing Microsoft Entra ID for passkey-first authentication
  3. MessagingEWS retirement: finding what will break before Exchange Online turns it off
  4. SecuritySecuring AI agents with Entra, Purview and Conditional Access
  5. InfrastructureFrom Storage Spaces Direct to Azure Local: what changed, and what didn’t
  6. IdentityActive Directory administrative tiering and why implementations stall
  7. IdentityHybrid identity failure modes nobody tests for
  8. SecurityConditional Access baselines that survive contact with users