Data
Self-host Duplicati on a VPS
Encrypted, deduplicated backups to any target.
Back up files and databases to local, SSH or S3-compatible storage with client-side encryption.
Why self-host Duplicati?
Duplicati gives you versioned, encrypted backups to your own storage target, so nothing depends on a vendor.
How to install Duplicati
- 1
Provision a VPS
Choose a plan with room for your data as well as the app.
- 2
Install the stack
Install .NET + web UI.
- 3
Deploy the application
Follow the project’s official install guide for your distribution.
- 4
Enable HTTPS
Serve it on your own domain behind a reverse proxy with a certificate.
- 5
Back it up
Schedule a database dump plus a copy of any uploaded files to an off-box location.
Practical tips
- Give Duplicati its own database user with rights only on its own schema.
- Reverse-proxy Duplicati and terminate TLS at the proxy so certificates are managed in one place.
- Take a VPS snapshot before major upgrades so you can roll back cleanly.
- Keep Duplicati patched — most self-hosting incidents are unpatched software.
Frequently asked questions
- How much RAM does Duplicati need?
- Plan on 1–2 GB for typical use; add headroom if you expect many concurrent users.
- What stack does Duplicati run on?
- .NET + web UI.
- Can I run other things on the same VPS?
- Yes — size the plan so Duplicati plus your other workloads fit in RAM with room to spare.
Looking for something else? Popular alternatives include restic, Borg, Kopia — browse all app guides.