Back Up Windows to a Synology NAS — Encrypted, Scheduled
Back up your Windows PC to a Synology NAS over SFTP, FTPS, WebDAV, or SMB. AES-256 client-side encryption, schedules, retention — an alternative to Hyper Backup that runs from your PC.
A Synology NAS is one of the best backup targets you can own: a one-time purchase, RAID redundancy, and your data sitting in your own closet. BackupKit backs up your Windows PC to the Synology — pushed from the PC, encrypted before it leaves, on a schedule. It's a simpler alternative to wiring up Hyper Backup or Synology Drive when all you want is “copy these folders to the NAS, safely, every night.”
Step-by-step on DSM
- Enable SFTP. In DSM:
Control Panel → File Services → FTPtab → enable SFTP service. Note the port (default 22). - Create a backup user (not admin) and a shared folder, e.g.
pc-backups, granting that user read/write to it. - Add the account in BackupKit: the NAS LAN IP (or QuickConnect DDNS), the SFTP port, the backup username and password. Test the connection.
- Create the job: source = Documents / Projects / photo library; destination = the
pc-backupsfolder. - Configure AES-256 encryption, a daily or weekly schedule, retention (e.g. keep 30 days), and failure notifications.
- Save and activate. Runs unattended.
On your LAN, SMB (mount the share as a drive) and SFTP are both fine. If your PC and Synology are in different locations, use SFTP or WebDAV over TLS — never expose SMB directly to the internet.
Why encrypt on your own NAS
Client-side AES-256 still matters even though you own the box: a stolen or RMA'd drive, a disposed disk, or another NAS account with admin rights can all expose plain files. Encrypted archives stay unreadable. The password is yours and is never stored on the Synology.
Fire, flood, or theft takes the NAS with the PC. Pair the Synology job with a cloud or FTP job for the off-site leg of a 3-2-1 strategy — BackupKit runs both from one app.
Related
- Back up Windows to a NAS — the general guide (QNAP, Unraid, TrueNAS).
- Back up Windows to a QNAP NAS
- Self-hosted backup destinations
- AES-256 encryption
- Scheduled backups
Coming August 2026
Back up anything to anywhere — encrypted, scheduled, automated. Join the waitlist and be first to know when BackupKit is ready — early subscribers get 20% off at launch.