Zero Trust is not a product - it's an operational model. This article documents our migration from perimeter-based security to identity-centric access using FreeIPA for centralized authentication and HashiCorp Vault for secrets management.
We cover the phased rollout: inventory of service accounts, certificate rotation, network segmentation boundaries, and the SIEM rules that validate every access attempt.
Key takeaway: start with your most exposed services, not your most critical ones. Early wins build organizational trust in the model.