If you plan to use Veeam Agent for Linux with Veeam Backup & Replication, you must have a license installed in Veeam Backup & Replication. The license must have a total number of instances that is sufficient to protect Linux-based machines (servers and workstations) on which you plan to install Veeam Agent for Linux. The number of backup jobs configured in Veeam Agent for Linux does not consume the license. To learn more about per-instance licensing in Veeam Backup & Replication, see the Licensed Objects section in the Veeam Backup & Replication User Guide.
After Veeam Agent for Linux connects to Veeam Backup & Replication, Veeam Agent for Linux automatically starts consuming the license. By default, Veeam Agent for Linux operates in the server mode. You can switch Veeam Agent for Linux to the workstation mode manually if needed.
If one or more Veeam Agents operating in the free mode are already connected to the backup server, they will start consuming the license immediately after the license is installed in Veeam Backup & Replication. Veeam Agents that exceed the license limit will not be able to back up data to the Veeam backup repository.
Veeam Agent for Linux keeps information about the license in its database. Information about the license is valid for 32 days. If Veeam Agent for Linux does not connect to Veeam Backup & Replication during this period, Veeam Backup & Replication will revoke its license.