Architecture
An agent on the machine, a collector in the network, or the server probes on its own. Everything ends up in the same database, the same UI.
Install
The installer checks the system, installs Docker if needed, pulls the stack and asks for your address and license key. No key means Community edition — free up to 25 hosts, no sign-up.
Recommended: a dedicated, empty Debian or Ubuntu machine — a small VM with 4 GB RAM is enough. Run it as root, no sudo needed.
$ curl -fsSL https://vesana.org/install | bash
[1/6] Checking system
✓ architecture: x86_64
✓ os: Debian GNU/Linux 13 (trixie)
✓ ports 80/443 are free