Azure File Sync

Product

Azure File Sync caches files from Azure Files on local Windows servers, giving on-premises users local performance while Azure Files remains the source of truth.

Title graphic: Azure File Sync (Product)

Type	Product
Documentation	learn.microsoft.com/azure/storage/file-sync

Key points about Azure File Sync

Azure File Sync still works for many organizations but relies on 2010s-era authentication: local X.509 certificates and SAS tokens. · Migrate Azure File Sync to Managed Identity
It connects to Azure Backup for automated backups, Azure File Sync for hybrid scenarios and Microsoft Defender for security monitoring. · Azure Files - Simply Explained

Episodes about Azure File Sync

Migrate Azure File Sync to Managed Identity

2025-11-03 · Video on YouTube

Azure File Sync still “works” for many orgs—but on 2010s-era auth: local X.509 certs and SAS tokens. Those are possession-based secrets: whoever holds them is “you.” They sprawl into scripts, backups, repos, and logs; they expire silently; and one leak grants…

Azure Files - Simply Explained

2026-07-17 · Video on YouTube

Azure Files is Microsoft's fully managed cloud file sharing service that allows organizations to create secure, scalable, and highly available file shares without maintaining traditional file servers. Using familiar SMB and NFS protocols, Azure Files enables…

Timeline of episodes about Azure File Sync

Articles about Azure File Sync (3)

Migrate Azure File Sync to Managed Identity: Why It's Urgent
2026-08-28 · Mirko Peters
Welcome back to the podcast companion blog! In today's post, we are diving deep into a topic that every cloud administrator and IT manager needs to take seriously. …
Migrating to the Cloud: A Step-by-Step Guide to Lift-and-Shift with Azure Files
2026-08-27 · Mirko Peters
Welcome back to the podcast companion blog! In our ongoing journey to help IT professionals, system administrators, and business leaders master modern infrastructur…
Azure File Sync Managed Identity
2025-11-21 · Mirko Peters
Learn how Azure File Sync managed identity replaces risky certificates and SAS tokens with stronger, more manageable authentication.

Frequently asked questions

Why is Azure File Sync with certificates and SAS tokens risky?

Whoever holds an X.509 certificate or SAS token is you. These secrets spread into scripts, backups, repos and logs, expire silently and, if leaked, allow silent exfiltration with valid credentials. · From the episode: Migrate Azure File Sync to Managed Identity

What does Managed Identity change for Azure File Sync?

Storage Sync Services and registered servers authenticate through Entra ID with short-lived tokens. There are no static keys or certificate renewals, and RBAC controls access. · From the episode: Migrate Azure File Sync to Managed Identity

Is migrating Azure File Sync to Managed Identity hard?

The episode calls it housekeeping, not heart surgery. It involves updating the File Sync configuration to use Managed Identity and then retiring old secrets. · From the episode: Migrate Azure File Sync to Managed Identity

What other Azure File Sync risks exist?

The notes mention data loss, sync failures, storage failovers, permission errors, corrupted files and unexpected costs. Proactive monitoring and timely security upgrades help. · From the episode: Migrate Azure File Sync to Managed Identity

How does Azure Files work with other Azure services?

It connects to Azure Backup for automated backups, Azure File Sync for hybrid scenarios and Microsoft Defender for security monitoring. · From the episode: Azure Files - Simply Explained

Glossary

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Sources

Documentation: learn.microsoft.com/azure/storage/file-sync
Feed for this topic (RSS): entity/azure-file-sync/feed.xml
M365.FM episodes on this topic: 2
Articles on this topic: 3

Maintained by Mirko Peters (Microsoft MVP) · Last updated: 2026-11-03