Shapes
- One nodeEverything on one machine.
- Two nodesOne fails. The other serves.
- Three and moreRegions. The nearest node answers.
- Behind NATHome, campus, office. No port forwarding.
- Floating addressA public IP that follows the node.
- Mobile nodeOn 4G. A box you can carry.
Who runs it
- Hosting companyTenants, plans, limits, white-label.
- AgencyClient domains. Branded webapps.
- EnterpriseInternal apps, mail and DNS. Your hardware.
- UniversityStudent mail and labs, on campus.
- GovernmentData stays in the country.
- DeveloperContainers with real HA.
Install
- One installerFresh Debian 12 or 13.
- Verified stepsEach one proves itself. A failed one resumes.
- Add a nodeOne call from the panel.

