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Licensing

Sapsan is licensed with a license file issued to the customer at purchase. You can download the license key yourself from the client area on my.flussonic.com.

The license is verified online: the server needs internet access to the Flussonic licensing servers. Without internet access Sapsan will not work.

The Flussonic licensing servers are distributed across continents and regions — the failure of a single server or the unavailability of a whole region does not affect license verification.

Note

Sapsan never updates itself. There is no forced-update functionality, and there never will be: license verification does not change the installed software, and a version upgrade is always an explicit administrator action through the package manager.

Files

The license is a single file you place next to the config; Sapsan creates the rest itself in the state directory during activation.

File Location Contents
license.txt /etc/sapsan/ (next to sapsan.yaml) the license key issued at purchase
server.id /var/lib/sapsan/ unique server identifier (UUID)
activation-<version>.json /var/lib/sapsan/ activation for a specific product version
keys/ /var/lib/sapsan/ directory with key material generated by Sapsan

Environment variables control where Sapsan looks for files:

  • State directory — SAPSAN_STATE_DIR, else the parent of SERVER_ID_PATH, else the current working directory. The deb package and Docker image set SERVER_ID_PATH=/var/lib/sapsan/server.id, so the state directory is /var/lib/sapsan.
  • License file — LICENSE_PATH, else {dirname(CONFIG_PATH)}/license.txt, else {state_dir}/license.txt. With CONFIG_PATH=/etc/sapsan/sapsan.yaml this is /etc/sapsan/license.txt.

See installing and running for how to place the license before the first start.

States

State When What works
Licensed the license is verified everything
Restricted the license is absent, expired, or failed verification the admin interface stays available, streaming is limited

The current license status is served by the API: GET /streamer/api-v4/license/status.

Next steps